Backpropagation

经典

http://yann.lecun.com/exdb/publis/pdf/lecun-98b.pdf   

https://mattmazur.com/2015/03/17/a-step-by-step-backpropagation-example/

https://alonalj.github.io/2016/12/10/What-is-Backpropagation/

https://medium.com/becoming-human/back-propagation-is-very-simple-who-made-it-complicated-97b794c97e5c

https://zhuanlan.zhihu.com/p/21407711?refer=intelligentunit

http://cs231n.github.io/optimization-2/

https://neuralnetworksanddeeplearning.com/chap2.html

https://zhuanlan.zhihu.com/p/25794795

https://www.zhihu.com/question/27239198

https://zhuanlan.zhihu.com/data-miner

http://www.cnblogs.com/charlotte77/p/5629865.html

http://blog.csdn.net/abcjennifer/article/details/7758797