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 method is often as simple as updating many lines of code; it also can entail A significant overhaul that is certainly spread throughout a number of information 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这个复杂的复合函数的... https://elliottbtipg.blogsidea.com/40409042/not-known-facts-about-backpr-site