链式法则不仅适用于简单的两层神经网络，还可以扩展到具有任意多层结构的深度神经网络。这使得我们能够训练和优化更加复杂的模型。 This process is often as clear-cut as updating numerous lines of code; it may also include a major overhaul that may be unfold across several files of your code. 在神经网络中，损失函数通常是一个复合函数，由多个层的输出和激活函数组合而成。链式法则允许我们将这个复杂... https://backpr48169.thechapblog.com/33134263/backpr-things-to-know-before-you-buy