Dropout

As explained in Deep Learning with PyTorch, Second Edition

A regularization technique that randomly omits activations during training and is turned off or altered for inference.

How Deep Learning with PyTorch, Second Edition covers it

How deep it goes

Defines random activation omission, explains its anti-memorization rationale, and demonstrates PyTorch placement without developing mathematical internals.

Examples

Demonstrates a two-convolution NetDropout model using Dropout2d with probability 0.4 after activation and pooling.

What it assumes

Assumes basic neural-network layers, activations, convolution, and the distinction between training and evaluation.

What you can do after

Apply it via PyTorch by inserting the appropriate dropout module and switching the model between training and evaluation modes.

How it connects

Connects dropout with regularization, overfitting, data augmentation, convolutional layers, activation functions, and training and evaluation modes.

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Also explained in

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  Grokking Machine LearningA neural-network regularization technique that randomly omits units during training to reduce co-adaptation and overfitting.
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  Deep Learning with R, Third EditionDropout is a regularization technique that randomly disables units during training to reduce reliance on particular activations.
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  Sutskever's ListDropout is a regularization technique that randomly suppresses units during training to reduce reliance on particular network pathways.
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  Deep Learning with Python, Third EditionA neural-network regularization technique that randomly zeroes activation entries during training and behaves differently at inference time.
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  Math and Architectures of Deep LearningA regularization method that randomly turns off units during training to reduce co-adaptation and improve generalization.
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  Evolutionary Deep Learning: Genetic algorithms and neural networksDropout is a neural-network regularization technique that randomly deactivates a proportion of nodes during training.
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  Natural Language Processing in Action, Second EditionA dropout layer is a neural-network layer that randomly disables units during training to reduce reliance on particular internal representations.
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  Inside Deep Learning: Math, Algorithms, ModelsA regularization technique that randomly zeros activations or inputs during training to reduce reliance on any single feature or unit.
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  Machine Learning Algorithms in DepthDropout is a regularization technique that randomly removes or zeroes neural-network connections or activations during training.
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  LLMs in ProductionDropout is a regularization technique that randomly disables neural-network units during training to reduce co-adaptation and overfitting.
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  Distributed Machine Learning PatternsA neural-network layer that randomly omits units during training to reduce overfitting and model complexity.

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Related concepts

• overfittingaddresses · Overfitting is a modeling condition in which a model fits patterns or idiosyncrasies in its training data too closely and consequently generalizes poorly to new data.
• regularizationkind of · Regularization is a modeling technique that constrains or penalizes solutions during fitting or optimization to discourage undesirable complexity or behavior and improve generalization or estimation.
• AlexNetused by · AlexNet is a convolutional neural network architecture designed for image classification and recognized for its landmark performance in large-scale image recognition.
• evaluation modeconfigured by · Evaluation mode is a model-execution state that changes or disables training-specific behaviors for evaluation or inference.
• hidden layeruses · A hidden layer is an internal neural-network layer between the input and output layers that transforms intermediate representations.

This explainer was generated by Manning's knowledge graph from the text of Deep Learning with PyTorch, Second Edition. The section links point to the parts of the book it draws on.