Caffe全连接层、Pooling层、Relu层反向传播原理和实现

啦啦啦啦啦\frac{\partial C}{\partial a_{j}}=\sum_{j}\frac{\partial C}{\partial z_{j}}\cdot \frac{\partial z_{i}}{a_{j}}=\sum_{j}{z_{i}}'w_{ij}