Residual connection

As explained in Math and Architectures of Deep Learning

A connection that adds a layer's input to its output so information and gradients can bypass one or more layers.

How Math and Architectures of Deep Learning covers it

How deep it goes

Defines residual learning, explains identity shortcuts, and reaches PyTorch block and architecture implementations.

Examples

Uses CIFAR-10 depth comparisons, residual-block diagrams, PyTorch BasicBlock code, and ResNet-34 construction.

What it assumes

Assumes neural-network layers and convolutional architectures while explaining why identity mappings challenge ordinary stacked layers.

What you can do after

Builds residual blocks in PyTorch and assembles or invokes a ResNet-34 model.

How it connects

Connects residual connections to ResNet, identity functions, convolutional neural networks, and degradation.

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Also explained in

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  Inside Deep Learning: Math, Algorithms, ModelsA bypass path in a residual network that routes information around one or more layers so signals or shapes can be preserved.
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  Sutskever's ListA residual connection is a shortcut path that carries a block's input directly to an addition with the block's transformed output.
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  Build a Text-to-Image Generator (from Scratch)A direct link that transfers representations between corresponding layers or stages of a neural network.
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  Learn Generative AI with PyTorchA neural-network connection that bypasses intermediate layers and passes earlier activations to later layers.
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  Deep Learning with Python, Third Edition
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  Deep Learning with PyTorch, Second EditionA connection that bypasses one or more network layers to provide an alternate path for activations or gradients.
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  Grokking AI Algorithms, Second EditionA skip connection is a direct connection that carries an earlier layer's representation to a later corresponding layer, bypassing intervening layers.
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  Deep Learning with R, Third EditionA residual connection is a neural-network connection that adds or otherwise passes an earlier representation to a later layer.
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  Graph Neural Networks in ActionA skip connection is a neural-network pathway that passes information around one or more intermediate layers to preserve or combine representations.
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  Knowledge Graphs and LLMs in ActionA residual connection is a neural-network connection that combines a layer's input with its transformed output to facilitate information and gradient propagation.
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  Transformers in ActionA residual connection adds a layer's input to its transformed output to facilitate optimization of deep neural networks.

Compare how 12 books explain residual connection →

Related concepts

• U-Netuses · U-Net is an encoder-decoder neural-network architecture with downsampling and upsampling paths connected by skip connections for combining features at multiple spatial scales.
• vanishing gradient problemaddresses · The vanishing-gradient problem is a neural-network training difficulty in which gradients shrink toward zero as they propagate backward, making updates to earlier layers or distant sequence steps ineffective.
• ResNetused by · ResNet is a family of deep neural-network architectures built from residual blocks with shortcut connections that facilitate information flow and optimization.
• transformer blockpart of · A transformer block is a neural-network module that transforms sequence representations using attention and feed-forward computation.
• over-smoothingaddresses · Over-smoothing is a graph neural network failure mode in which repeated neighborhood aggregation or message passing makes node representations increasingly similar and difficult to distinguish.

This explainer was generated by Manning's knowledge graph from the text of Math and Architectures of Deep Learning. The section links point to the parts of the book it draws on.