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<h1>HyperNetworks - HyperLSTM</h1>
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<p>We have implemented HyperLSTM introduced in paper <a href="https://papers.labml.ai/paper/1609.09106">HyperNetworks</a>, with annotations using <a href="https://pytorch.org">PyTorch</a>. <a href="https://blog.otoro.net/2016/09/28/hyper-networks/">This blog post</a> by David Ha gives a good explanation of HyperNetworks.</p>
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<p>We have an experiment that trains a HyperLSTM to predict text on Shakespeare dataset. Here's the link to code: <a href="experiment.html"><code class="highlight"><span></span><span class="n">experiment</span><span class="o">.</span><span class="n">py</span></code>
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<p><a href="https://colab.research.google.com/github/labmlai/annotated_deep_learning_paper_implementations/blob/master/labml_nn/hypernetworks/experiment.ipynb"><img alt="Open In Colab" src="https://colab.research.google.com/assets/colab-badge.svg"></a> <a href="https://app.labml.ai/run/9e7f39e047e811ebbaff2b26e3148b3d"><img alt="View Run" src="https://img.shields.io/badge/labml-experiment-brightgreen"></a></p>
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<p>HyperNetworks use a smaller network to generate weights of a larger network. There are two variants: static hyper-networks and dynamic hyper-networks. Static HyperNetworks have smaller networks that generate weights (kernels) of a convolutional network. Dynamic HyperNetworks generate parameters of a recurrent neural network for each step. This is an implementation of the latter.</p>
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<h2>Dynamic HyperNetworks</h2>
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<p>In a RNN the parameters stay constant for each step. Dynamic HyperNetworks generate different parameters for each step. HyperLSTM has the structure of a LSTM but the parameters of each step are changed by a smaller LSTM network.</p>
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<p>In the basic form, a Dynamic HyperNetwork has a smaller recurrent network that generates a feature vector corresponding to each parameter tensor of the larger recurrent network. Let's say the larger network has some parameter <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord" style="color:cyan"><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span> the smaller network generates a feature vector <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.58056em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span> and we dynamically compute <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord" style="color:cyan"><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span> as a linear transformation of <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.58056em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span>. For instance <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord" style="color:cyan"><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">⟨</span><span class="mord coloredeq eqbj" style=""><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span><span class="mord mtight coloredeq eqbu" style=""><span class="mord mathnormal mtight" style="margin-right:0.04398em">z</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mclose">⟩</span></span></span></span> where <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqbj" style=""><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span><span class="mord mtight coloredeq eqbu" style=""><span class="mord mathnormal mtight" style="margin-right:0.04398em">z</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span> is a 3-d tensor parameter and <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">⟨</span><span class="mord">.</span><span class="mclose">⟩</span></span></span></span> is a tensor-vector multiplication. <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.58056em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span> is usually a linear transformation of the output of the smaller recurrent network.</p>
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<h3>Weight scaling instead of computing</h3>
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<p>Large recurrent networks have large dynamically computed parameters. These are calculated using linear transformation of feature vector <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.43056em;vertical-align:0em;"></span><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span></span></span></span>. And this transformation requires an even larger weight tensor. That is, when <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord" style="color:cyan"><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span> has shape <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqz" style=""><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.10903em">N</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.10903em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mbin" style="">×</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.10903em">N</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.10903em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span>, <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqbj" style=""><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span><span class="mord mtight coloredeq eqbu" style=""><span class="mord mathnormal mtight" style="margin-right:0.04398em">z</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span> will be <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqz" style=""><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.10903em">N</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.10903em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mbin" style="">×</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.10903em">N</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.10903em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mbin">×</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span></span><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord"><span class="mord mathnormal" style="margin-right:0.10903em;">N</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.151392em;"><span style="top:-2.5500000000000003em;margin-left:-0.10903em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight coloredeq eqbu" style=""><span class="mord mathnormal mtight" style="margin-right:0.04398em">z</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span>.</p>
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<p>To overcome this, we compute the weight parameters of the recurrent network by dynamically scaling each row of a matrix of same size.</p>
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||
<span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:8.165125000000003em;vertical-align:-3.8325625000000016em;"></span><span class="mord"><span class="mtable"><span class="col-align-r"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:4.332562500000001em;"><span style="top:-8.175125000000001em;"><span class="pstrut" style="height:4.6825625em;"></span><span class="mord"><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="mopen">(</span><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="mclose">)</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mord coloredeq eqbj" style=""><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span><span class="mord mtight coloredeq eqbu" style=""><span class="mord mathnormal mtight" style="margin-right:0.04398em">z</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span><span style="top:-6.675125em;"><span class="pstrut" style="height:4.6825625em;"></span><span class="mord"></span></span><span style="top:-3.332562499999999em;"><span class="pstrut" style="height:4.6825625em;"></span><span class="mord"><span class="mord" style="color:cyan"><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="minner"><span class="mopen"><span class="delimsizing mult"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:2.65003em;"><span style="top:-1.7110100000000004em;"><span class="pstrut" style="height:3.2160200000000003em;"></span><span class="delimsizinginner delim-size4"><span>⎝</span></span></span><span style="top:-2.85801em;"><span class="pstrut" style="height:3.2160200000000003em;"></span><span style="height:1.2160200000000003em;width:0.875em;"><svg height="1.2160200000000003em" preserveaspectratio="xMinYMin" style="width:0.875em" viewbox="0 0 875 1216" width="0.875em" xmlns="http://www.w3.org/2000/svg"><path d="M291 0 H417 V1216 H291z M291 0 H417 V1216 H291z"></path></svg></span></span><span style="top:-4.71105em;"><span class="pstrut" style="height:3.2160200000000003em;"></span><span class="delimsizinginner delim-size4"><span>⎛</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:2.15003em;"><span></span></span></span></span></span></span><span class="mord"><span class="mtable"><span class="col-align-c"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:2.6825625000000004em;"><span style="top:-4.8425625000000005em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord"><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.30110799999999993em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">0</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="mclose">)</span><span class="mord"><span class="mord mathnormal" style="margin-right:0.13889em;">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span><span class="mord mtight"><span class="mord mtight coloredeq eqbo" style=""><span class="mord mathnormal mtight" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.31731428571428577em;"><span style="top:-2.357em;margin-right:0.07142857142857144em;"><span class="pstrut" style="height:2.5em;"></span><span class="sizing reset-size3 size1 mtight"><span class="mord mtight">0</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.143em;"><span></span></span></span></span></span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.2501em;"><span></span></span></span></span></span></span></span></span><span style="top:-3.6425625em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord"><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.30110799999999993em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight">1</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="mclose">)</span><span class="mord"><span class="mord mathnormal" style="margin-right:0.13889em;">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span><span class="mord mtight"><span class="mord mtight coloredeq eqbo" style=""><span class="mord mathnormal mtight" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.31731428571428577em;"><span style="top:-2.357em;margin-right:0.07142857142857144em;"><span class="pstrut" style="height:2.5em;"></span><span class="sizing reset-size3 size1 mtight"><span class="mord mtight">1</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.143em;"><span></span></span></span></span></span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.2501em;"><span></span></span></span></span></span></span></span></span><span style="top:-2.4425624999999997em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord">...</span></span></span><span style="top:-1.2425624999999996em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord"><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.32833099999999993em;"><span style="top:-2.55em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight"><span class="mord mathnormal mtight" style="margin-right:0.10903em;">N</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.3448em;"><span style="top:-2.3487714285714287em;margin-left:-0.10903em;margin-right:0.07142857142857144em;"><span class="pstrut" style="height:2.5em;"></span><span class="sizing reset-size3 size1 mtight"><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15122857142857138em;"><span></span></span></span></span></span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.25586em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="mclose">)</span><span class="mord"><span class="mord mathnormal" style="margin-right:0.13889em;">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999985em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span><span class="mord mtight"><span class="mord mtight coloredeq eqbo" style=""><span class="mord mathnormal mtight" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.3448em;"><span style="top:-2.3567071428571427em;margin-right:0.07142857142857144em;"><span class="pstrut" style="height:2.5em;"></span><span class="sizing reset-size3 size1 mtight"><span class="mord mtight"><span class="mord mtight"><span class="mord mathnormal mtight" style="margin-right:0.10903em;">N</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.3448em;"><span style="top:-2.3448em;margin-left:-0.10903em;margin-right:0.1em;"><span class="pstrut" style="height:2.69444em;"></span><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.34963999999999995em;"><span></span></span></span></span></span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.39303571428571427em;"><span></span></span></span></span></span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.425125em;"><span></span></span></span></span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:2.1825625000000004em;"><span></span></span></span></span></span></span></span><span class="mclose"><span class="delimsizing mult"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:2.65003em;"><span style="top:-1.7110100000000004em;"><span class="pstrut" style="height:3.2160200000000003em;"></span><span class="delimsizinginner delim-size4"><span>⎠</span></span></span><span style="top:-2.85801em;"><span class="pstrut" style="height:3.2160200000000003em;"></span><span style="height:1.2160200000000003em;width:0.875em;"><svg height="1.2160200000000003em" preserveaspectratio="xMinYMin" style="width:0.875em" viewbox="0 0 875 1216" width="0.875em" xmlns="http://www.w3.org/2000/svg"><path d="M457 0 H583 V1216 H457z M457 0 H583 V1216 H457z"></path></svg></span></span><span style="top:-4.71105em;"><span class="pstrut" style="height:3.2160200000000003em;"></span><span class="delimsizinginner delim-size4"><span>⎞</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:2.15003em;"><span></span></span></span></span></span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:3.8325625000000016em;"><span></span></span></span></span></span></span></span></span></span></span></span><p>where <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqbi" style=""><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span><span class="mord mtight coloredeq eqbo" style=""><span class="mord mathnormal mtight" style="">d</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span> is a <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.83333em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqz" style=""><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.10903em">N</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.10903em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mbin" style="">×</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.10903em">N</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.10903em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span> parameter matrix.</p>
|
||
<p>We can further optimize this when we compute <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.84444em;vertical-align:-0.15em;"></span><span class="mord" style="color:cyan"><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span></span></span></span>, as <span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="mopen" style="color:lightgreen;">(</span><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="mclose" style="color:lightgreen;">)</span><span class="mord coloredeq eqbk" style=""><span class="mord" style="">⊙</span></span><span class="mopen" style="color:lightgreen;">(</span><span class="mord coloredeq eqbi" style=""><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span><span class="mord mtight coloredeq eqbo" style=""><span class="mord mathnormal mtight" style="">d</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span><span class="mclose" style="color:lightgreen;">)</span></span></span></span></span> where <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.66666em;vertical-align:-0.08333em;"></span><span class="mord coloredeq eqbk" style=""><span class="mord" style="">⊙</span></span></span></span></span> stands for element-wise multiplication.</p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">73</span><span></span><span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Optional</span><span class="p">,</span> <span class="n">Tuple</span>
|
||
<span class="lineno">74</span>
|
||
<span class="lineno">75</span><span class="kn">import</span> <span class="nn">torch</span>
|
||
<span class="lineno">76</span><span class="kn">from</span> <span class="nn">torch</span> <span class="kn">import</span> <span class="n">nn</span>
|
||
<span class="lineno">77</span>
|
||
<span class="lineno">78</span><span class="kn">from</span> <span class="nn">labml_helpers.module</span> <span class="kn">import</span> <span class="n">Module</span>
|
||
<span class="lineno">79</span><span class="kn">from</span> <span class="nn">labml_nn.lstm</span> <span class="kn">import</span> <span class="n">LSTMCell</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-1'>
|
||
<div class='docs doc-strings'>
|
||
<div class='section-link'>
|
||
<a href='#section-1'>#</a>
|
||
</div>
|
||
<h2>HyperLSTM Cell</h2>
|
||
<p>For HyperLSTM the smaller network and the larger network both have the LSTM structure. This is defined in Appendix A.2.2 in the paper.</p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">82</span><span class="k">class</span> <span class="nc">HyperLSTMCell</span><span class="p">(</span><span class="n">Module</span><span class="p">):</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-2'>
|
||
<div class='docs doc-strings'>
|
||
<div class='section-link'>
|
||
<a href='#section-2'>#</a>
|
||
</div>
|
||
<p> <code class="highlight"><span></span><span class="n">input_size</span></code>
|
||
is the size of the input <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.58056em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqbm" style=""><span class="mord" style=""><span class="mord mathnormal" style="">x</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span>, <code class="highlight"><span></span><span class="n">hidden_size</span></code>
|
||
is the size of the LSTM, and <code class="highlight"><span></span><span class="n">hyper_size</span></code>
|
||
is the size of the smaller LSTM that alters the weights of the larger outer LSTM. <code class="highlight"><span></span><span class="n">n_z</span></code>
|
||
is the size of the feature vectors used to alter the LSTM weights.</p>
|
||
<p>We use the output of the smaller LSTM to compute <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.9991079999999999em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqbd" style=""><span class="mord" style=""><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8491079999999999em;"><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span></span></span></span></span></span></span></span></span>, <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.0961079999999999em;vertical-align:-0.247em;"></span><span class="mord coloredeq eqbe" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8491079999999999em;"><span style="top:-2.4530000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">x</span></span></span><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span></span></span></span></span> and <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord coloredeq eqbc" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999999em;"><span style="top:-2.3986920000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">b</span></span></span><span style="top:-3.1809080000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span></span></span></span></span> using linear transformations. We calculate <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord coloredeq eqq" style=""><span class="mord" style=""><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999999em;"><span style="top:-2.3986920000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span><span style="top:-3.1809080000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen" style="">(</span><span class="mord coloredeq eqbd" style=""><span class="mord" style=""><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8491079999999999em;"><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span></span></span></span></span></span><span class="mclose" style="">)</span></span></span></span></span>, <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.0991079999999998em;vertical-align:-0.25em;"></span><span class="mord coloredeq eqr" style=""><span class="mord" style=""><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8491079999999999em;"><span style="top:-2.4530000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">x</span></span></span><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span><span class="mopen" style="">(</span><span class="mord coloredeq eqbe" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8491079999999999em;"><span style="top:-2.4530000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">x</span></span></span><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span></span><span class="mclose" style="">)</span></span></span></span></span>, and <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord coloredeq eqp" style=""><span class="mord" style=""><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999999em;"><span style="top:-2.3986920000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">b</span></span></span><span style="top:-3.1809080000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen" style="">(</span><span class="mord coloredeq eqbc" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999999em;"><span style="top:-2.3986920000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">b</span></span></span><span style="top:-3.1809080000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span></span><span class="mclose" style="">)</span></span></span></span></span> from these, using linear transformations again. These are then used to scale the rows of weight and bias tensors of the main LSTM.</p>
|
||
<p>📝 Since the computation of <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.43056em;vertical-align:0em;"></span><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span></span></span></span> and <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.69444em;vertical-align:0em;"></span><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span></span></span></span> are two sequential linear transformations these can be combined into a single linear transformation. However we've implemented this separately so that it matches with the description in the paper.</p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">90</span> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">input_size</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">hidden_size</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">hyper_size</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">n_z</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-3'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-3'>#</a>
|
||
</div>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">108</span> <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">()</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-4'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-4'>#</a>
|
||
</div>
|
||
<p>The input to the hyperLSTM is <span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.84444em;vertical-align:-0.15em;"></span><span class="mord"><span class="mord accent"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.69444em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord mathnormal">x</span></span><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.22222em;"><span class="mord">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:2.40003em;vertical-align:-0.95003em;"></span><span class="minner"><span class="mopen delimcenter" style="top:0em;"><span class="delimsizing size3">(</span></span><span class="mord"><span class="mtable"><span class="col-align-c"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:1.45em;"><span style="top:-3.61em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord coloredeq eqbh" style=""><span class="mord" style=""><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.301108em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mathnormal mtight" style="">t</span><span class="mbin mtight" style="">−</span><span class="mord mtight" style="">1</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.208331em;"><span></span></span></span></span></span></span></span></span></span><span style="top:-2.4099999999999997em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord coloredeq eqbm" style=""><span class="mord" style=""><span class="mord mathnormal" style="">x</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.9500000000000004em;"><span></span></span></span></span></span></span></span><span class="mclose delimcenter" style="top:0em;"><span class="delimsizing size3">)</span></span></span></span></span></span></span> where <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.58056em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqbm" style=""><span class="mord" style=""><span class="mord mathnormal" style="">x</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span> is the input and <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.902771em;vertical-align:-0.208331em;"></span><span class="mord coloredeq eqbh" style=""><span class="mord" style=""><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.301108em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mathnormal mtight" style="">t</span><span class="mbin mtight" style="">−</span><span class="mord mtight" style="">1</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.208331em;"><span></span></span></span></span></span></span></span></span></span></span> is the output of the outer LSTM at previous step. So the input size is <code class="highlight"><span></span><span class="n">hidden_size</span> <span class="o">+</span> <span class="n">input_size</span></code>
|
||
.</p>
|
||
<p>The output of hyperLSTM is <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.1078799999999998em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqbg" style=""><span class="mord" style=""><span class="mord accent" style=""><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.9578799999999998em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span></span><span style="top:-3.26344em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.25em;"><span class="mord" style="">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span> and <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.84444em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqbf" style=""><span class="mord" style=""><span class="mord accent" style=""><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.69444em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord mathnormal" style="">c</span></span><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.19444em;"><span class="mord" style="">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span>. </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">121</span> <span class="bp">self</span><span class="o">.</span><span class="n">hyper</span> <span class="o">=</span> <span class="n">LSTMCell</span><span class="p">(</span><span class="n">hidden_size</span> <span class="o">+</span> <span class="n">input_size</span><span class="p">,</span> <span class="n">hyper_size</span><span class="p">,</span> <span class="n">layer_norm</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-5'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-5'>#</a>
|
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|
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<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.049108em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqbd" style=""><span class="mord" style=""><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999999em;"><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord coloredeq eqbg" style=""><span class="mord" style=""><span class="mord accent" style=""><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.9578799999999998em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span></span><span style="top:-3.26344em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.25em;"><span class="mord" style="">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mclose">)</span></span></span></span></span> 🤔 In the paper it was specified as <span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.049108em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqbd" style=""><span class="mord" style=""><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999999em;"><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord"><span class="mord accent"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.9578799999999998em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span></span><span style="top:-3.26344em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.25em;"><span class="mord">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.301108em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight" style="color:red"><span class="mord mathnormal mtight" style="">t</span><span class="mbin mtight" style="">−</span><span class="mord mtight" style="">1</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.208331em;"><span></span></span></span></span></span></span><span class="mclose">)</span></span></span></span></span> I feel that it's a typo. </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">127</span> <span class="bp">self</span><span class="o">.</span><span class="n">z_h</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">Linear</span><span class="p">(</span><span class="n">hyper_size</span><span class="p">,</span> <span class="mi">4</span> <span class="o">*</span> <span class="n">n_z</span><span class="p">)</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-6'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-6'>#</a>
|
||
</div>
|
||
<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.146108em;vertical-align:-0.247em;"></span><span class="mord coloredeq eqbe" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999998em;"><span style="top:-2.4530000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">x</span></span></span><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.2078799999999998em;vertical-align:-0.25em;"></span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999998em;"><span style="top:-2.4530000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">x</span></span></span><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord coloredeq eqbg" style=""><span class="mord" style=""><span class="mord accent" style=""><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.9578799999999998em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span></span><span style="top:-3.26344em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.25em;"><span class="mord" style="">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mclose">)</span></span></span></span></span> </p>
|
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|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">129</span> <span class="bp">self</span><span class="o">.</span><span class="n">z_x</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">Linear</span><span class="p">(</span><span class="n">hyper_size</span><span class="p">,</span> <span class="mi">4</span> <span class="o">*</span> <span class="n">n_z</span><span class="p">)</span></pre></div>
|
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<div class='section' id='section-7'>
|
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<div class='docs'>
|
||
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|
||
<a href='#section-7'>#</a>
|
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</div>
|
||
<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord coloredeq eqbc" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">b</span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">b</span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord coloredeq eqbg" style=""><span class="mord" style=""><span class="mord accent" style=""><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.9578799999999998em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span></span><span style="top:-3.26344em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.25em;"><span class="mord" style="">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mclose">)</span></span></span></span></span> </p>
|
||
|
||
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|
||
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|
||
<div class="highlight"><pre><span class="lineno">131</span> <span class="bp">self</span><span class="o">.</span><span class="n">z_b</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">Linear</span><span class="p">(</span><span class="n">hyper_size</span><span class="p">,</span> <span class="mi">4</span> <span class="o">*</span> <span class="n">n_z</span><span class="p">,</span> <span class="n">bias</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span></pre></div>
|
||
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|
||
</div>
|
||
<div class='section' id='section-8'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
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<a href='#section-8'>#</a>
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||
<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord coloredeq eqq" style=""><span class="mord" style=""><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen" style="">(</span><span class="mord coloredeq eqbd" style=""><span class="mord" style=""><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999999em;"><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span></span></span></span></span></span><span class="mclose" style="">)</span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbo" style=""><span class="mord mathnormal mtight" style="">d</span></span><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord coloredeq eqbd" style=""><span class="mord" style=""><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999999em;"><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span></span></span></span></span></span><span class="mclose">)</span></span></span></span></span> </p>
|
||
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||
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|
||
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|
||
<div class="highlight"><pre><span class="lineno">134</span> <span class="n">d_h</span> <span class="o">=</span> <span class="p">[</span><span class="n">nn</span><span class="o">.</span><span class="n">Linear</span><span class="p">(</span><span class="n">n_z</span><span class="p">,</span> <span class="n">hidden_size</span><span class="p">,</span> <span class="n">bias</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">4</span><span class="p">)]</span>
|
||
<span class="lineno">135</span> <span class="bp">self</span><span class="o">.</span><span class="n">d_h</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">ModuleList</span><span class="p">(</span><span class="n">d_h</span><span class="p">)</span></pre></div>
|
||
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|
||
</div>
|
||
<div class='section' id='section-9'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-9'>#</a>
|
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|
||
<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.1491079999999998em;vertical-align:-0.25em;"></span><span class="mord coloredeq eqr" style=""><span class="mord" style=""><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999998em;"><span style="top:-2.4530000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">x</span></span></span><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span><span class="mopen" style="">(</span><span class="mord coloredeq eqbe" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999998em;"><span style="top:-2.4530000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">x</span></span></span><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span></span><span class="mclose" style="">)</span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbo" style=""><span class="mord mathnormal mtight" style="">d</span></span><span class="mord mathnormal mtight">x</span></span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord coloredeq eqbe" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999998em;"><span style="top:-2.4530000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">x</span></span></span><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span></span><span class="mclose">)</span></span></span></span></span> </p>
|
||
|
||
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|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">137</span> <span class="n">d_x</span> <span class="o">=</span> <span class="p">[</span><span class="n">nn</span><span class="o">.</span><span class="n">Linear</span><span class="p">(</span><span class="n">n_z</span><span class="p">,</span> <span class="n">hidden_size</span><span class="p">,</span> <span class="n">bias</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">4</span><span class="p">)]</span>
|
||
<span class="lineno">138</span> <span class="bp">self</span><span class="o">.</span><span class="n">d_x</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">ModuleList</span><span class="p">(</span><span class="n">d_x</span><span class="p">)</span></pre></div>
|
||
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|
||
</div>
|
||
<div class='section' id='section-10'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-10'>#</a>
|
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</div>
|
||
<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord coloredeq eqp" style=""><span class="mord" style=""><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">b</span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen" style="">(</span><span class="mord coloredeq eqbc" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">b</span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span></span><span class="mclose" style="">)</span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbo" style=""><span class="mord mathnormal mtight" style="">d</span></span><span class="mord mathnormal mtight">b</span></span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord coloredeq eqbc" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">b</span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span></span><span class="mclose">)</span></span></span></span></span> </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">140</span> <span class="n">d_b</span> <span class="o">=</span> <span class="p">[</span><span class="n">nn</span><span class="o">.</span><span class="n">Linear</span><span class="p">(</span><span class="n">n_z</span><span class="p">,</span> <span class="n">hidden_size</span><span class="p">)</span> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">4</span><span class="p">)]</span>
|
||
<span class="lineno">141</span> <span class="bp">self</span><span class="o">.</span><span class="n">d_b</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">ModuleList</span><span class="p">(</span><span class="n">d_b</span><span class="p">)</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-11'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-11'>#</a>
|
||
</div>
|
||
<p>The weight matrices <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord coloredeq eqba" style=""><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999999em;"><span style="top:-2.3986920000000005em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span><span style="top:-3.1809080000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span></span></span></span></span> </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">144</span> <span class="bp">self</span><span class="o">.</span><span class="n">w_h</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">ParameterList</span><span class="p">([</span><span class="n">nn</span><span class="o">.</span><span class="n">Parameter</span><span class="p">(</span><span class="n">torch</span><span class="o">.</span><span class="n">zeros</span><span class="p">(</span><span class="n">hidden_size</span><span class="p">,</span> <span class="n">hidden_size</span><span class="p">))</span> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">4</span><span class="p">)])</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-12'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-12'>#</a>
|
||
</div>
|
||
<p>The weight matrices <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.0961079999999999em;vertical-align:-0.247em;"></span><span class="mord"><span class="mord mathnormal" style="margin-right:0.13889em;">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8491079999999999em;"><span style="top:-2.4530000000000003em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">x</span></span></span><span style="top:-3.063em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span></span></span></span> </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">146</span> <span class="bp">self</span><span class="o">.</span><span class="n">w_x</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">ParameterList</span><span class="p">([</span><span class="n">nn</span><span class="o">.</span><span class="n">Parameter</span><span class="p">(</span><span class="n">torch</span><span class="o">.</span><span class="n">zeros</span><span class="p">(</span><span class="n">hidden_size</span><span class="p">,</span> <span class="n">input_size</span><span class="p">))</span> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">4</span><span class="p">)])</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-13'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-13'>#</a>
|
||
</div>
|
||
<p>Layer normalization </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">149</span> <span class="bp">self</span><span class="o">.</span><span class="n">layer_norm</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">ModuleList</span><span class="p">([</span><span class="n">nn</span><span class="o">.</span><span class="n">LayerNorm</span><span class="p">(</span><span class="n">hidden_size</span><span class="p">)</span> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">4</span><span class="p">)])</span>
|
||
<span class="lineno">150</span> <span class="bp">self</span><span class="o">.</span><span class="n">layer_norm_c</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">LayerNorm</span><span class="p">(</span><span class="n">hidden_size</span><span class="p">)</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-14'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-14'>#</a>
|
||
</div>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">152</span> <span class="k">def</span> <span class="nf">forward</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">:</span> <span class="n">torch</span><span class="o">.</span><span class="n">Tensor</span><span class="p">,</span>
|
||
<span class="lineno">153</span> <span class="n">h</span><span class="p">:</span> <span class="n">torch</span><span class="o">.</span><span class="n">Tensor</span><span class="p">,</span> <span class="n">c</span><span class="p">:</span> <span class="n">torch</span><span class="o">.</span><span class="n">Tensor</span><span class="p">,</span>
|
||
<span class="lineno">154</span> <span class="n">h_hat</span><span class="p">:</span> <span class="n">torch</span><span class="o">.</span><span class="n">Tensor</span><span class="p">,</span> <span class="n">c_hat</span><span class="p">:</span> <span class="n">torch</span><span class="o">.</span><span class="n">Tensor</span><span class="p">):</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-15'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-15'>#</a>
|
||
</div>
|
||
<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.84444em;vertical-align:-0.15em;"></span><span class="mord"><span class="mord accent"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.69444em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord mathnormal">x</span></span><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.22222em;"><span class="mord">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:2.40003em;vertical-align:-0.95003em;"></span><span class="minner"><span class="mopen delimcenter" style="top:0em;"><span class="delimsizing size3">(</span></span><span class="mord"><span class="mtable"><span class="col-align-c"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:1.45em;"><span style="top:-3.61em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord coloredeq eqbh" style=""><span class="mord" style=""><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.301108em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mathnormal mtight" style="">t</span><span class="mbin mtight" style="">−</span><span class="mord mtight" style="">1</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.208331em;"><span></span></span></span></span></span></span></span></span></span><span style="top:-2.4099999999999997em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord coloredeq eqbm" style=""><span class="mord" style=""><span class="mord mathnormal" style="">x</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.9500000000000004em;"><span></span></span></span></span></span></span></span><span class="mclose delimcenter" style="top:0em;"><span class="delimsizing size3">)</span></span></span></span></span></span></span> </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">161</span> <span class="n">x_hat</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">cat</span><span class="p">((</span><span class="n">h</span><span class="p">,</span> <span class="n">x</span><span class="p">),</span> <span class="n">dim</span><span class="o">=-</span><span class="mi">1</span><span class="p">)</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-16'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-16'>#</a>
|
||
</div>
|
||
<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.1523199999999998em;vertical-align:-0.19444em;"></span><span class="mord coloredeq eqbg" style=""><span class="mord" style=""><span class="mord accent" style=""><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.9578799999999998em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span></span><span style="top:-3.26344em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.25em;"><span class="mord" style="">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord coloredeq eqbf" style=""><span class="mord" style=""><span class="mord accent" style=""><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.69444em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord mathnormal" style="">c</span></span><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.19444em;"><span class="mord" style="">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.2078799999999998em;vertical-align:-0.25em;"></span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord mathnormal">s</span><span class="mord mathnormal">t</span><span class="mord mathnormal">m</span><span class="mopen">(</span><span class="mord"><span class="mord accent"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.69444em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord mathnormal">x</span></span><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.22222em;"><span class="mord">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord"><span class="mord accent"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.9578799999999998em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span></span><span style="top:-3.26344em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.25em;"><span class="mord">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.301108em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mathnormal mtight">t</span><span class="mbin mtight">−</span><span class="mord mtight">1</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.208331em;"><span></span></span></span></span></span></span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord"><span class="mord accent"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.69444em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord mathnormal">c</span></span><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.19444em;"><span class="mord">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.301108em;"><span style="top:-2.5500000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mathnormal mtight">t</span><span class="mbin mtight">−</span><span class="mord mtight">1</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.208331em;"><span></span></span></span></span></span></span><span class="mclose">)</span></span></span></span></span> </p>
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<div class="highlight"><pre><span class="lineno">163</span> <span class="n">h_hat</span><span class="p">,</span> <span class="n">c_hat</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">hyper</span><span class="p">(</span><span class="n">x_hat</span><span class="p">,</span> <span class="n">h_hat</span><span class="p">,</span> <span class="n">c_hat</span><span class="p">)</span></pre></div>
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<div class='docs'>
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<div class='section-link'>
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<a href='#section-17'>#</a>
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<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.049108em;vertical-align:-0.15em;"></span><span class="mord coloredeq eqbd" style=""><span class="mord" style=""><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999999em;"><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord coloredeq eqbg" style=""><span class="mord" style=""><span class="mord accent" style=""><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.9578799999999998em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span></span><span style="top:-3.26344em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.25em;"><span class="mord" style="">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mclose">)</span></span></span></span></span> </p>
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<div class="highlight"><pre><span class="lineno">166</span> <span class="n">z_h</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">z_h</span><span class="p">(</span><span class="n">h_hat</span><span class="p">)</span><span class="o">.</span><span class="n">chunk</span><span class="p">(</span><span class="mi">4</span><span class="p">,</span> <span class="n">dim</span><span class="o">=-</span><span class="mi">1</span><span class="p">)</span></pre></div>
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<div class='section' id='section-18'>
|
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<div class='docs'>
|
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<div class='section-link'>
|
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<a href='#section-18'>#</a>
|
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|
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<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.146108em;vertical-align:-0.247em;"></span><span class="mord coloredeq eqbe" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999998em;"><span style="top:-2.4530000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">x</span></span></span><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.2078799999999998em;vertical-align:-0.25em;"></span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999998em;"><span style="top:-2.4530000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">x</span></span></span><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord coloredeq eqbg" style=""><span class="mord" style=""><span class="mord accent" style=""><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.9578799999999998em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span></span><span style="top:-3.26344em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.25em;"><span class="mord" style="">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mclose">)</span></span></span></span></span> </p>
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|
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|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">168</span> <span class="n">z_x</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">z_x</span><span class="p">(</span><span class="n">h_hat</span><span class="p">)</span><span class="o">.</span><span class="n">chunk</span><span class="p">(</span><span class="mi">4</span><span class="p">,</span> <span class="n">dim</span><span class="o">=-</span><span class="mi">1</span><span class="p">)</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-19'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-19'>#</a>
|
||
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|
||
<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord coloredeq eqbc" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">b</span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">b</span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord coloredeq eqbg" style=""><span class="mord" style=""><span class="mord accent" style=""><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.9578799999999998em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span></span><span style="top:-3.26344em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.25em;"><span class="mord" style="">^</span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mclose">)</span></span></span></span></span> </p>
|
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|
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</div>
|
||
<div class='code'>
|
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<div class="highlight"><pre><span class="lineno">170</span> <span class="n">z_b</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">z_b</span><span class="p">(</span><span class="n">h_hat</span><span class="p">)</span><span class="o">.</span><span class="n">chunk</span><span class="p">(</span><span class="mi">4</span><span class="p">,</span> <span class="n">dim</span><span class="o">=-</span><span class="mi">1</span><span class="p">)</span></pre></div>
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<p>We calculate <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.65952em;vertical-align:0em;"></span><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span></span></span></span>, <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.8888799999999999em;vertical-align:-0.19444em;"></span><span class="mord coloredeq eqbp" style=""><span class="mord mathnormal" style="margin-right:0.10764em">f</span></span></span></span></span>, <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.625em;vertical-align:-0.19444em;"></span><span class="mord coloredeq eqbq" style=""><span class="mord mathnormal" style="margin-right:0.03588em">g</span></span></span></span></span> and <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.43056em;vertical-align:0em;"></span><span class="mord coloredeq eqbt" style=""><span class="mord mathnormal" style="">o</span></span></span></span></span> in a loop </p>
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|
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<div class="highlight"><pre><span class="lineno">173</span> <span class="n">ifgo</span> <span class="o">=</span> <span class="p">[]</span>
|
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<span class="lineno">174</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">4</span><span class="p">):</span></pre></div>
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|
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<div class='section-link'>
|
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<a href='#section-21'>#</a>
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<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord coloredeq eqq" style=""><span class="mord" style=""><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen" style="">(</span><span class="mord coloredeq eqbd" style=""><span class="mord" style=""><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999999em;"><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span></span></span></span></span></span><span class="mclose" style="">)</span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbo" style=""><span class="mord mathnormal mtight" style="">d</span></span><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord coloredeq eqbd" style=""><span class="mord" style=""><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="msupsub"><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999999em;"><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span></span></span></span></span></span><span class="mclose">)</span></span></span></span></span> </p>
|
||
|
||
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|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">176</span> <span class="n">d_h</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">d_h</span><span class="p">[</span><span class="n">i</span><span class="p">](</span><span class="n">z_h</span><span class="p">[</span><span class="n">i</span><span class="p">])</span></pre></div>
|
||
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|
||
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|
||
<div class='section' id='section-22'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-22'>#</a>
|
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|
||
<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.1491079999999998em;vertical-align:-0.25em;"></span><span class="mord coloredeq eqr" style=""><span class="mord" style=""><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999998em;"><span style="top:-2.4530000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">x</span></span></span><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span><span class="mopen" style="">(</span><span class="mord coloredeq eqbe" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999998em;"><span style="top:-2.4530000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">x</span></span></span><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span></span><span class="mclose" style="">)</span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1.2683239999999998em;vertical-align:-0.3013079999999999em;"></span><span class="mord mathnormal" style="margin-right:0.01968em;">l</span><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="mord"><span class="mord mathnormal">n</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbo" style=""><span class="mord mathnormal mtight" style="">d</span></span><span class="mord mathnormal mtight">x</span></span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord coloredeq eqbe" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999998em;"><span style="top:-2.4530000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">x</span></span></span><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span></span><span class="mclose">)</span></span></span></span></span> </p>
|
||
|
||
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|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">178</span> <span class="n">d_x</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">d_x</span><span class="p">[</span><span class="n">i</span><span class="p">](</span><span class="n">z_x</span><span class="p">[</span><span class="n">i</span><span class="p">])</span></pre></div>
|
||
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|
||
</div>
|
||
<div class='section' id='section-23'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-23'>#</a>
|
||
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|
||
<span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:4.881048em;vertical-align:-2.190524em;"></span><span class="mord"><span class="mtable"><span class="col-align-r"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:2.690524em;"><span style="top:-4.723508000000001em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord"><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord coloredeq eqbp" style=""><span class="mord mathnormal" style="margin-right:0.10764em">f</span></span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord coloredeq eqbq" style=""><span class="mord mathnormal" style="margin-right:0.03588em">g</span></span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord coloredeq eqbt" style=""><span class="mord mathnormal" style="">o</span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.10903em;">N</span><span class="mopen">(</span></span></span><span style="top:-3.0964920000000005em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord">+</span></span></span><span style="top:-1.4694760000000002em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord">+</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:2.190524em;"><span></span></span></span></span></span><span class="col-align-l"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:2.690524em;"><span style="top:-4.723508000000001em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord"></span><span class="mord" style="color:lightgreen;"><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style="color:lightgreen"><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style="color:lightgreen"><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen" style="color:lightgreen;">(</span><span class="mord coloredeq eqbn" style=""><span class="mord" style=""><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mclose" style="color:lightgreen;">)</span><span class="mord coloredeq eqbk" style=""><span class="mord" style="">⊙</span></span><span class="mopen" style="color:lightgreen;">(</span><span class="mord coloredeq eqba" style=""><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span></span><span class="mord coloredeq eqbh" style=""><span class="mord" style=""><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.301108em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mathnormal mtight" style="">t</span><span class="mbin mtight" style="">−</span><span class="mord mtight" style="">1</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.208331em;"><span></span></span></span></span></span></span></span><span class="mclose" style="color:lightgreen;">)</span></span></span><span style="top:-3.0964920000000005em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord"></span><span class="mord" style="color:lightgreen;"><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.8991079999999998em;"><span style="top:-2.4530000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style="color:lightgreen"><span class="mord mathnormal mtight" style="">x</span></span></span><span style="top:-3.1130000000000004em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style="color:lightgreen"><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.247em;"><span></span></span></span></span></span></span><span class="mopen" style="color:lightgreen;">(</span><span class="mord" style="color:lightgreen;"><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.151392em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style="color:lightgreen"><span class="mord mathnormal mtight" style="">x</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mclose" style="color:lightgreen;">)</span><span class="mord coloredeq eqbk" style=""><span class="mord" style="">⊙</span></span><span class="mopen" style="color:lightgreen;">(</span><span class="mord coloredeq eqba" style=""><span class="mord" style=""><span class="mord mathnormal" style="margin-right:0.13889em">W</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-left:-0.13889em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight coloredeq eqbr" style=""><span class="mord mathnormal mtight" style="">h</span></span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mtight" style=""><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight" style="">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span></span><span class="mord coloredeq eqbm" style=""><span class="mord" style=""><span class="mord mathnormal" style="">x</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight" style=""><span class="mord mathnormal mtight" style="">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span><span class="mclose" style="color:lightgreen;">)</span></span></span><span style="top:-1.4694760000000002em;"><span class="pstrut" style="height:3em;"></span><span class="mord"><span class="mord"></span><span class="mord"><span class="mord coloredeq eqbo" style=""><span class="mord mathnormal" style="">d</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.9670159999999998em;"><span style="top:-2.3986920000000005em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">b</span></span></span><span style="top:-3.180908em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mtight coloredeq eqbs" style=""><span class="mord mathnormal mtight" style="">i</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbp" style=""><span class="mord mathnormal mtight" style="margin-right:0.10764em">f</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbq" style=""><span class="mord mathnormal mtight" style="margin-right:0.03588em">g</span></span><span class="mpunct mtight">,</span><span class="mord mtight coloredeq eqbt" style=""><span class="mord mathnormal mtight" style="">o</span></span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.3013079999999999em;"><span></span></span></span></span></span></span><span class="mopen">(</span><span class="mord"><span class="mord coloredeq eqbu" style=""><span class="mord mathnormal" style="margin-right:0.04398em">z</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.33610799999999996em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">b</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mclose">))</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:2.190524em;"><span></span></span></span></span></span></span></span></span></span></span></span><p> </p>
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<div class='code'>
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<div class="highlight"><pre><span class="lineno">185</span> <span class="n">y</span> <span class="o">=</span> <span class="n">d_h</span> <span class="o">*</span> <span class="n">torch</span><span class="o">.</span><span class="n">einsum</span><span class="p">(</span><span class="s1">'ij,bj->bi'</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">w_h</span><span class="p">[</span><span class="n">i</span><span class="p">],</span> <span class="n">h</span><span class="p">)</span> <span class="o">+</span> \
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<span class="lineno">186</span> <span class="n">d_x</span> <span class="o">*</span> <span class="n">torch</span><span class="o">.</span><span class="n">einsum</span><span class="p">(</span><span class="s1">'ij,bj->bi'</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">w_x</span><span class="p">[</span><span class="n">i</span><span class="p">],</span> <span class="n">x</span><span class="p">)</span> <span class="o">+</span> \
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<span class="lineno">187</span> <span class="bp">self</span><span class="o">.</span><span class="n">d_b</span><span class="p">[</span><span class="n">i</span><span class="p">](</span><span class="n">z_b</span><span class="p">[</span><span class="n">i</span><span class="p">])</span>
|
||
<span class="lineno">188</span>
|
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<span class="lineno">189</span> <span class="n">ifgo</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">layer_norm</span><span class="p">[</span><span class="n">i</span><span class="p">](</span><span class="n">y</span><span class="p">))</span></pre></div>
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|
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|
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<div class='section' id='section-24'>
|
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<div class='docs'>
|
||
<div class='section-link'>
|
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<a href='#section-24'>#</a>
|
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|
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<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.8888799999999999em;vertical-align:-0.19444em;"></span><span class="mord"><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord"><span class="mord coloredeq eqbp" style=""><span class="mord mathnormal" style="margin-right:0.10764em">f</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord"><span class="mord coloredeq eqbq" style=""><span class="mord mathnormal" style="margin-right:0.03588em">g</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord"><span class="mord coloredeq eqbt" style=""><span class="mord mathnormal" style="">o</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span></span></span></span></span> </p>
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|
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<div class='code'>
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<div class="highlight"><pre><span class="lineno">192</span> <span class="n">i</span><span class="p">,</span> <span class="n">f</span><span class="p">,</span> <span class="n">g</span><span class="p">,</span> <span class="n">o</span> <span class="o">=</span> <span class="n">ifgo</span></pre></div>
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|
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<div class='section' id='section-25'>
|
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<div class='docs'>
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<div class='section-link'>
|
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<a href='#section-25'>#</a>
|
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|
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<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.58056em;vertical-align:-0.15em;"></span><span class="mord"><span class="mord mathnormal">c</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal" style="margin-right:0.03588em;">σ</span><span class="mopen">(</span><span class="mord"><span class="mord coloredeq eqbp" style=""><span class="mord mathnormal" style="margin-right:0.10764em">f</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mclose">)</span><span class="mord coloredeq eqbk" style=""><span class="mord" style="">⊙</span></span><span class="mord"><span class="mord mathnormal">c</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.301108em;"><span style="top:-2.5500000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mtight"><span class="mord mathnormal mtight">t</span><span class="mbin mtight">−</span><span class="mord mtight">1</span></span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.208331em;"><span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2222222222222222em;"></span><span class="mbin">+</span><span class="mspace" style="margin-right:0.2222222222222222em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal" style="margin-right:0.03588em;">σ</span><span class="mopen">(</span><span class="mord"><span class="mord coloredeq eqbs" style=""><span class="mord mathnormal" style="">i</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mclose">)</span><span class="mord coloredeq eqbk" style=""><span class="mord" style="">⊙</span></span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mop">tanh</span><span class="mopen">(</span><span class="mord"><span class="mord coloredeq eqbq" style=""><span class="mord mathnormal" style="margin-right:0.03588em">g</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mclose">)</span></span></span></span></span> </p>
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|
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<div class='code'>
|
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<div class="highlight"><pre><span class="lineno">195</span> <span class="n">c_next</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">sigmoid</span><span class="p">(</span><span class="n">f</span><span class="p">)</span> <span class="o">*</span> <span class="n">c</span> <span class="o">+</span> <span class="n">torch</span><span class="o">.</span><span class="n">sigmoid</span><span class="p">(</span><span class="n">i</span><span class="p">)</span> <span class="o">*</span> <span class="n">torch</span><span class="o">.</span><span class="n">tanh</span><span class="p">(</span><span class="n">g</span><span class="p">)</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-26'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-26'>#</a>
|
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</div>
|
||
<p><span class="katex-display"><span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.84444em;vertical-align:-0.15em;"></span><span class="mord"><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mspace" style="margin-right:0.2777777777777778em;"></span><span class="mrel">=</span><span class="mspace" style="margin-right:0.2777777777777778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal" style="margin-right:0.03588em;">σ</span><span class="mopen">(</span><span class="mord"><span class="mord coloredeq eqbt" style=""><span class="mord mathnormal" style="">o</span></span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mclose">)</span><span class="mord coloredeq eqbk" style=""><span class="mord" style="">⊙</span></span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mop">tanh</span><span class="mopen">(</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.10903em;">N</span><span class="mopen">(</span><span class="mord"><span class="mord mathnormal">c</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.2805559999999999em;"><span style="top:-2.5500000000000003em;margin-left:0em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight">t</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mclose">))</span></span></span></span></span> </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">198</span> <span class="n">h_next</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">sigmoid</span><span class="p">(</span><span class="n">o</span><span class="p">)</span> <span class="o">*</span> <span class="n">torch</span><span class="o">.</span><span class="n">tanh</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">layer_norm_c</span><span class="p">(</span><span class="n">c_next</span><span class="p">))</span>
|
||
<span class="lineno">199</span>
|
||
<span class="lineno">200</span> <span class="k">return</span> <span class="n">h_next</span><span class="p">,</span> <span class="n">c_next</span><span class="p">,</span> <span class="n">h_hat</span><span class="p">,</span> <span class="n">c_hat</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-27'>
|
||
<div class='docs doc-strings'>
|
||
<div class='section-link'>
|
||
<a href='#section-27'>#</a>
|
||
</div>
|
||
<h1>HyperLSTM module</h1>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">203</span><span class="k">class</span> <span class="nc">HyperLSTM</span><span class="p">(</span><span class="n">Module</span><span class="p">):</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-28'>
|
||
<div class='docs doc-strings'>
|
||
<div class='section-link'>
|
||
<a href='#section-28'>#</a>
|
||
</div>
|
||
<p> Create a network of <code class="highlight"><span></span><span class="n">n_layers</span></code>
|
||
of HyperLSTM.</p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">208</span> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">input_size</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">hidden_size</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">hyper_size</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">n_z</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">n_layers</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-29'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-29'>#</a>
|
||
</div>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">213</span> <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">()</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-30'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-30'>#</a>
|
||
</div>
|
||
<p>Store sizes to initialize state </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">216</span> <span class="bp">self</span><span class="o">.</span><span class="n">n_layers</span> <span class="o">=</span> <span class="n">n_layers</span>
|
||
<span class="lineno">217</span> <span class="bp">self</span><span class="o">.</span><span class="n">hidden_size</span> <span class="o">=</span> <span class="n">hidden_size</span>
|
||
<span class="lineno">218</span> <span class="bp">self</span><span class="o">.</span><span class="n">hyper_size</span> <span class="o">=</span> <span class="n">hyper_size</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-31'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-31'>#</a>
|
||
</div>
|
||
<p>Create cells for each layer. Note that only the first layer gets the input directly. Rest of the layers get the input from the layer below </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">222</span> <span class="bp">self</span><span class="o">.</span><span class="n">cells</span> <span class="o">=</span> <span class="n">nn</span><span class="o">.</span><span class="n">ModuleList</span><span class="p">([</span><span class="n">HyperLSTMCell</span><span class="p">(</span><span class="n">input_size</span><span class="p">,</span> <span class="n">hidden_size</span><span class="p">,</span> <span class="n">hyper_size</span><span class="p">,</span> <span class="n">n_z</span><span class="p">)]</span> <span class="o">+</span>
|
||
<span class="lineno">223</span> <span class="p">[</span><span class="n">HyperLSTMCell</span><span class="p">(</span><span class="n">hidden_size</span><span class="p">,</span> <span class="n">hidden_size</span><span class="p">,</span> <span class="n">hyper_size</span><span class="p">,</span> <span class="n">n_z</span><span class="p">)</span> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span>
|
||
<span class="lineno">224</span> <span class="nb">range</span><span class="p">(</span><span class="n">n_layers</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)])</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-32'>
|
||
<div class='docs doc-strings'>
|
||
<div class='section-link'>
|
||
<a href='#section-32'>#</a>
|
||
</div>
|
||
<ul><li><code class="highlight"><span></span><span class="n">x</span></code>
|
||
has shape <code class="highlight"><span></span><span class="p">[</span><span class="n">n_steps</span><span class="p">,</span> <span class="n">batch_size</span><span class="p">,</span> <span class="n">input_size</span><span class="p">]</span></code>
|
||
and </li>
|
||
<li><code class="highlight"><span></span><span class="n">state</span></code>
|
||
is a tuple of <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.1523199999999998em;vertical-align:-0.19444em;"></span><span class="mord coloredeq eqbl" style=""><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span><span class="mpunct" style="">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord mathnormal" style="">c</span></span><span class="mpunct">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord coloredeq eqy" style=""><span class="mord accent" style=""><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.9578799999999998em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span></span><span style="top:-3.26344em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.25em;"><span class="mord" style="">^</span></span></span></span></span></span></span><span class="mpunct" style="">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord accent" style=""><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.69444em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord mathnormal" style="">c</span></span><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.19444em;"><span class="mord" style="">^</span></span></span></span></span></span></span></span></span></span></span>. <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.8888799999999999em;vertical-align:-0.19444em;"></span><span class="mord coloredeq eqbl" style=""><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span><span class="mpunct" style="">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord mathnormal" style="">c</span></span></span></span></span> have shape <code class="highlight"><span></span><span class="p">[</span><span class="n">batch_size</span><span class="p">,</span> <span class="n">hidden_size</span><span class="p">]</span></code>
|
||
and <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:1.1523199999999998em;vertical-align:-0.19444em;"></span><span class="mord coloredeq eqy" style=""><span class="mord accent" style=""><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.9578799999999998em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span></span><span style="top:-3.26344em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.25em;"><span class="mord" style="">^</span></span></span></span></span></span></span><span class="mpunct" style="">,</span><span class="mspace" style="margin-right:0.16666666666666666em;"></span><span class="mord accent" style=""><span class="vlist-t"><span class="vlist-r"><span class="vlist" style="height:0.69444em;"><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="mord mathnormal" style="">c</span></span><span style="top:-3em;"><span class="pstrut" style="height:3em;"></span><span class="accent-body" style="left:-0.19444em;"><span class="mord" style="">^</span></span></span></span></span></span></span></span></span></span></span> have shape <code class="highlight"><span></span><span class="p">[</span><span class="n">batch_size</span><span class="p">,</span> <span class="n">hyper_size</span><span class="p">]</span></code>
|
||
.</li></ul>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">226</span> <span class="k">def</span> <span class="nf">forward</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">:</span> <span class="n">torch</span><span class="o">.</span><span class="n">Tensor</span><span class="p">,</span>
|
||
<span class="lineno">227</span> <span class="n">state</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">Tuple</span><span class="p">[</span><span class="n">torch</span><span class="o">.</span><span class="n">Tensor</span><span class="p">,</span> <span class="n">torch</span><span class="o">.</span><span class="n">Tensor</span><span class="p">,</span> <span class="n">torch</span><span class="o">.</span><span class="n">Tensor</span><span class="p">,</span> <span class="n">torch</span><span class="o">.</span><span class="n">Tensor</span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">):</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-33'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-33'>#</a>
|
||
</div>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">234</span> <span class="n">n_steps</span><span class="p">,</span> <span class="n">batch_size</span> <span class="o">=</span> <span class="n">x</span><span class="o">.</span><span class="n">shape</span><span class="p">[:</span><span class="mi">2</span><span class="p">]</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-34'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-34'>#</a>
|
||
</div>
|
||
<p>Initialize the state with zeros if <code class="highlight"><span></span><span class="kc">None</span></code>
|
||
</p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">237</span> <span class="k">if</span> <span class="n">state</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
|
||
<span class="lineno">238</span> <span class="n">h</span> <span class="o">=</span> <span class="p">[</span><span class="n">x</span><span class="o">.</span><span class="n">new_zeros</span><span class="p">(</span><span class="n">batch_size</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">hidden_size</span><span class="p">)</span> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">n_layers</span><span class="p">)]</span>
|
||
<span class="lineno">239</span> <span class="n">c</span> <span class="o">=</span> <span class="p">[</span><span class="n">x</span><span class="o">.</span><span class="n">new_zeros</span><span class="p">(</span><span class="n">batch_size</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">hidden_size</span><span class="p">)</span> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">n_layers</span><span class="p">)]</span>
|
||
<span class="lineno">240</span> <span class="n">h_hat</span> <span class="o">=</span> <span class="p">[</span><span class="n">x</span><span class="o">.</span><span class="n">new_zeros</span><span class="p">(</span><span class="n">batch_size</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">hyper_size</span><span class="p">)</span> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">n_layers</span><span class="p">)]</span>
|
||
<span class="lineno">241</span> <span class="n">c_hat</span> <span class="o">=</span> <span class="p">[</span><span class="n">x</span><span class="o">.</span><span class="n">new_zeros</span><span class="p">(</span><span class="n">batch_size</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">hyper_size</span><span class="p">)</span> <span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">n_layers</span><span class="p">)]</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-35'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-35'>#</a>
|
||
</div>
|
||
<p> </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">243</span> <span class="k">else</span><span class="p">:</span>
|
||
<span class="lineno">244</span> <span class="p">(</span><span class="n">h</span><span class="p">,</span> <span class="n">c</span><span class="p">,</span> <span class="n">h_hat</span><span class="p">,</span> <span class="n">c_hat</span><span class="p">)</span> <span class="o">=</span> <span class="n">state</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-36'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-36'>#</a>
|
||
</div>
|
||
<p>Reverse stack the tensors to get the states of each layer</p>
|
||
<p>📝 You can just work with the tensor itself but this is easier to debug </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">248</span> <span class="n">h</span><span class="p">,</span> <span class="n">c</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">torch</span><span class="o">.</span><span class="n">unbind</span><span class="p">(</span><span class="n">h</span><span class="p">)),</span> <span class="nb">list</span><span class="p">(</span><span class="n">torch</span><span class="o">.</span><span class="n">unbind</span><span class="p">(</span><span class="n">c</span><span class="p">))</span>
|
||
<span class="lineno">249</span> <span class="n">h_hat</span><span class="p">,</span> <span class="n">c_hat</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">torch</span><span class="o">.</span><span class="n">unbind</span><span class="p">(</span><span class="n">h_hat</span><span class="p">)),</span> <span class="nb">list</span><span class="p">(</span><span class="n">torch</span><span class="o">.</span><span class="n">unbind</span><span class="p">(</span><span class="n">c_hat</span><span class="p">))</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-37'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-37'>#</a>
|
||
</div>
|
||
<p>Collect the outputs of the final layer at each step </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">252</span> <span class="n">out</span> <span class="o">=</span> <span class="p">[]</span>
|
||
<span class="lineno">253</span> <span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">n_steps</span><span class="p">):</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-38'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-38'>#</a>
|
||
</div>
|
||
<p>Input to the first layer is the input itself </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">255</span> <span class="n">inp</span> <span class="o">=</span> <span class="n">x</span><span class="p">[</span><span class="n">t</span><span class="p">]</span></pre></div>
|
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</div>
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</div>
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<div class='section' id='section-39'>
|
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<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-39'>#</a>
|
||
</div>
|
||
<p>Loop through the layers </p>
|
||
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</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">257</span> <span class="k">for</span> <span class="n">layer</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">n_layers</span><span class="p">):</span></pre></div>
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</div>
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</div>
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<div class='section' id='section-40'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-40'>#</a>
|
||
</div>
|
||
<p>Get the state of the layer </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">259</span> <span class="n">h</span><span class="p">[</span><span class="n">layer</span><span class="p">],</span> <span class="n">c</span><span class="p">[</span><span class="n">layer</span><span class="p">],</span> <span class="n">h_hat</span><span class="p">[</span><span class="n">layer</span><span class="p">],</span> <span class="n">c_hat</span><span class="p">[</span><span class="n">layer</span><span class="p">]</span> <span class="o">=</span> \
|
||
<span class="lineno">260</span> <span class="bp">self</span><span class="o">.</span><span class="n">cells</span><span class="p">[</span><span class="n">layer</span><span class="p">](</span><span class="n">inp</span><span class="p">,</span> <span class="n">h</span><span class="p">[</span><span class="n">layer</span><span class="p">],</span> <span class="n">c</span><span class="p">[</span><span class="n">layer</span><span class="p">],</span> <span class="n">h_hat</span><span class="p">[</span><span class="n">layer</span><span class="p">],</span> <span class="n">c_hat</span><span class="p">[</span><span class="n">layer</span><span class="p">])</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-41'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-41'>#</a>
|
||
</div>
|
||
<p>Input to the next layer is the state of this layer </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">262</span> <span class="n">inp</span> <span class="o">=</span> <span class="n">h</span><span class="p">[</span><span class="n">layer</span><span class="p">]</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-42'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-42'>#</a>
|
||
</div>
|
||
<p>Collect the output <span class="katex"><span aria-hidden="true" class="katex-html"><span class="base"><span class="strut" style="height:0.69444em;vertical-align:0em;"></span><span class="mord coloredeq eqbr" style=""><span class="mord mathnormal" style="">h</span></span></span></span></span> of the final layer </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">264</span> <span class="n">out</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">h</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">])</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-43'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-43'>#</a>
|
||
</div>
|
||
<p>Stack the outputs and states </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">267</span> <span class="n">out</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">stack</span><span class="p">(</span><span class="n">out</span><span class="p">)</span>
|
||
<span class="lineno">268</span> <span class="n">h</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">stack</span><span class="p">(</span><span class="n">h</span><span class="p">)</span>
|
||
<span class="lineno">269</span> <span class="n">c</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">stack</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
|
||
<span class="lineno">270</span> <span class="n">h_hat</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">stack</span><span class="p">(</span><span class="n">h_hat</span><span class="p">)</span>
|
||
<span class="lineno">271</span> <span class="n">c_hat</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">stack</span><span class="p">(</span><span class="n">c_hat</span><span class="p">)</span></pre></div>
|
||
</div>
|
||
</div>
|
||
<div class='section' id='section-44'>
|
||
<div class='docs'>
|
||
<div class='section-link'>
|
||
<a href='#section-44'>#</a>
|
||
</div>
|
||
<p> </p>
|
||
|
||
</div>
|
||
<div class='code'>
|
||
<div class="highlight"><pre><span class="lineno">274</span> <span class="k">return</span> <span class="n">out</span><span class="p">,</span> <span class="p">(</span><span class="n">h</span><span class="p">,</span> <span class="n">c</span><span class="p">,</span> <span class="n">h_hat</span><span class="p">,</span> <span class="n">c_hat</span><span class="p">)</span></pre></div>
|
||
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|
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