输出层偏导数：首先计算损失函数相对于输出层神经元输出的偏导数。这通常直接依赖于所选的损失函数。 This can be finished as part of an official patch or bug repair. For open-resource program, which include Linux, a backport can be provided by a 3rd party and after that submitted to the program enhancement team. 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... https://backpr95948.blogdemls.com/33894519/back-pr-things-to-know-before-you-buy