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<h1>ඉහළ-Kනියැදීම්</h1>
<p>මෙන්නඅපි පළමුව පිවිසුම් බෙදා හැරීමෙන් ඉහළම කේ ටෝකන තෝරාගෙන ඒවායින් සාම්පල ලබා ගනිමු. </p>
<p>මෙන්නමෙම නියැදි ශිල්පීය ක්රම භාවිතා කරන <a href="experiment.html">අත්හදා බැලීමක්</a> . </p>
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<div class="highlight"><pre><span class="lineno">15</span><span></span><span class="kn">import</span> <span class="nn">torch</span>
<span class="lineno">16</span>
<span class="lineno">17</span><span class="kn">from</span> <span class="nn">labml_nn.sampling</span> <span class="kn">import</span> <span class="n">Sampler</span></pre></div>
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<h2>ඉහළ-Kනියැදි</h2>
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<div class="highlight"><pre><span class="lineno">20</span><span class="k">class</span> <span class="nc">TopKSampler</span><span class="p">(</span><span class="n">Sampler</span><span class="p">):</span></pre></div>
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<ul><li><code class="highlight"><span></span><span class="n">k</span></code>
තෝරා ගැනීමට ටෝකන ගණන වේ </li>
</ul><li><code class="highlight"><span></span><span class="n">sampler</span></code>
ඉහළ-k ටෝකන සඳහා භාවිතා කිරීමට නියැදිකරු වේ</li>
<p><code class="highlight"><span></span><span class="n">sampler</span></code>
පිවිසුම් ටෙන්සරයක් ආදාන ලෙස ගෙන ටෝකන් ටෙන්සරයක් නැවත ලබා දෙන ඕනෑම නියැදියක විය හැකිය; උදා: <a href="temperature.html">`උෂ්ණත්ව සාම්පලයක්'</a>. </p>
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<div class="highlight"><pre><span class="lineno">24</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">k</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">sampler</span><span class="p">:</span> <span class="n">Sampler</span><span class="p">):</span></pre></div>
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<div class="highlight"><pre><span class="lineno">32</span> <span class="bp">self</span><span class="o">.</span><span class="n">k</span> <span class="o">=</span> <span class="n">k</span>
<span class="lineno">33</span> <span class="bp">self</span><span class="o">.</span><span class="n">sampler</span> <span class="o">=</span> <span class="n">sampler</span></pre></div>
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<p> පිවිසුම්වලින් නියැදිය</p>
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<div class="highlight"><pre><span class="lineno">35</span> <span class="k">def</span> <span class="fm">__call__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">logits</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>
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<p>නවපිවිසුම් පිරී ඇත <span ><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 eqa" style=""><span class="mord" style=""></span><span class="mord" style=""></span></span></span></span></span></span>; i.e. ශුන්ය සම්භාවිතාව </p>
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<div class='code'>
<div class="highlight"><pre><span class="lineno">40</span> <span class="n">zeros</span> <span class="o">=</span> <span class="n">logits</span><span class="o">.</span><span class="n">new_ones</span><span class="p">(</span><span class="n">logits</span><span class="o">.</span><span class="n">shape</span><span class="p">)</span> <span class="o">*</span> <span class="nb">float</span><span class="p">(</span><span class="s1">&#39;-inf&#39;</span><span class="p">)</span></pre></div>
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<p>විශාලතම <span ><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 mathnormal" style="margin-right:0.03148em;">k</span></span></span></span></span> පිවිසුම් සහ ඒවායේ දර්ශක තෝරන්න </p>
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<div class="highlight"><pre><span class="lineno">42</span> <span class="n">values</span><span class="p">,</span> <span class="n">indices</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">topk</span><span class="p">(</span><span class="n">logits</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">k</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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<a href='#section-7'>#</a>
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<p>Top-kතෝරාගත් දර්ශකවල අගයන් සැබෑ පිවිසුම් වලට සකසන්න. වෙනත් ටෝකන වල පිවිසුම් ඉතිරිව පවතී <span ><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 eqa" style=""><span class="mord" style=""></span><span class="mord" style=""></span></span></span></span></span></span> </p>
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<div class='code'>
<div class="highlight"><pre><span class="lineno">45</span> <span class="n">zeros</span><span class="o">.</span><span class="n">scatter_</span><span class="p">(</span><span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="n">indices</span><span class="p">,</span> <span class="n">values</span><span class="p">)</span></pre></div>
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<a href='#section-8'>#</a>
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<p>නිශ්චිතනියැදිය සමඟ ඉහළ-k පිවිසුම් වලින් නියැදිය. </p>
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<div class="highlight"><pre><span class="lineno">48</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">sampler</span><span class="p">(</span><span class="n">zeros</span><span class="p">)</span></pre></div>
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