https://blog.csdn.net/KangRoger/article/details/56522132
吴恩达
深度学习习题
https://zhuanlan.zhihu.com/p/32235142
林轩田
https://blog.csdn.net/red_stone1/article/details/80044059
kaggle竞赛
https://zhuanlan.zhihu.com/p/25686876