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 method is as uncomplicated as updating many strains of code; it could also contain An important overhaul that is definitely unfold across various files of the 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... https://back-pr48260.ltfblog.com/32953734/backpr-an-overview