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 as uncomplicated as updating quite a few strains of code; it also can contain a major overhaul which is distribute throughout a number of documents of your code. 前向传播是神经网络通过层级结构和参数，将输入数据逐步转换为预测结果的过程，实现输入与输出之间的复杂映射。 Backportin... https://louisoixkx.educationalimpactblog.com/55688970/detailed-notes-on-backpr-site