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<h1><a href="https://nn.labml.ai/distillation/index.html">Distilling the Knowledge in a Neural Network</a></h1>
<p>This is a <a href="https://pytorch.org">PyTorch</a> implementation/tutorial of the paper <a href="https://papers.labml.ai/paper/1503.02531">Distilling the Knowledge in a Neural Network</a>.</p>
<p>It's a way of training a small network using the knowledge in a trained larger network; i.e. distilling the knowledge from the large network.</p>
<p>A large model with regularization or an ensemble of models (using dropout) generalizes better than a small model when trained directly on the data and labels. However, a small model can be trained to generalize better with help of a large model. Smaller models are better in production: faster, less compute, less memory.</p>
<p>The output probabilities of a trained model give more information than the labels because it assigns non-zero probabilities to incorrect classes as well. These probabilities tell us that a sample has a chance of belonging to certain classes. For instance, when classifying digits, when given an image of digit <em>7</em>, a generalized model will give a high probability to 7 and a small but non-zero probability to 2, while assigning almost zero probability to other digits. Distillation uses this information to train a small model better.</p>
<p><a href="https://app.labml.ai/run/d6182e2adaf011eb927c91a2a1710932"><img alt="View Run" src="https://img.shields.io/badge/labml-experiment-brightgreen"></a> </p>
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