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。 算法从输出层开始，根据损失函数计算输出层的误差，然后将误差信息反向传播到隐藏层，逐层计算每个神经元的误差梯度。 A backport is most often applied to handle protection flaws in legacy computer software or more mature versions on the program that are still supported f... https://andersonkgviw.bloggactivo.com/33278544/a-review-of-backpr-site