V2EX residual connection

Residual Connection

释义 Definition

残差连接 / 跳跃连接:深度学习神经网络中的一种结构,把某一层(或若干层)的输入 直接加到 后续层的输出上(常见形式:y = F(x) + x)。它有助于缓解深层网络训练中的梯度消失与退化问题,使信息与梯度更容易在网络中传播。(在不同实现里也可能用拼接等方式,但最常见是“相加”的 skip connection。)

发音 Pronunciation (IPA)

/rzdul knkn/

例句 Examples

A residual connection helps a very deep network train better.
残差连接能帮助非常深的网络更好地训练。

In this model, residual connections let earlier features flow forward, improving accuracy without making optimization unstable.
在这个模型中,残差连接让较早层的特征向前传递,在不让优化变得不稳定的情况下提升了准确率。

词源 Etymology

residual 意为“残余的、剩余的”,在数学与工程里常指“误差/残差”;connection 为“连接”。“Residual connection”这一说法在深度学习中随着 ResNet(残差网络) 的提出而广泛流行,用来描述“把输入作为‘残差路径’绕过若干层并与输出相加”的连接方式。

相关词Related Words

文献与著作 Literary Works

  • Kaiming He et al. (2015), Deep Residual Learning for Image Recognition(提出 ResNet,系统阐述 residual connection)
  • Ian Goodfellow, Yoshua Bengio, Aaron Courville (2016), Deep Learning(深度学习教材中讨论深层网络训练难点与相关技巧,常与残差思想并读)
  • Ashish Vaswani et al. (2017), Attention Is All You Need(Transformer 结构中广泛使用残差连接与层归一化)
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