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。 You signed in with A different tab or window. Reload to refresh your session. You signed out in An additional tab or window. Reload to refresh your session. You switched accounts on Yet another tab or window. Reload to refresh your session. 在神经网络中，损失函数通常是一个复合函数，由多个层... https://backpr52614.designertoblog.com/65284930/indicators-on-back-pr-you-should-know