极大似然估计（MLE）与最大后验概率估计（MAP）
http://blog.csdn.net/lin360580306/article/details/51289543
https://www.cnblogs.com/sylvanas2012/p/5058065.html
迁移学习
https://www.zhihu.com/question/41979241
强化学习
http://blog.csdn.net/aliceyangxi1987/article/details/73327378
LDA 、PCA
https://www.cnblogs.com/pinard/p/6244265.html
深度学习相关
神经网络（反向传播、梯度消失、dropout）
CS231n课程笔记翻译：反向传播笔记
https://zhuanlan.zhihu.com/p/21407711?refer=intelligentunit
梯度消失与梯度爆炸
http://blog.sina.com.cn/s/blog_6e32babb0102y1om.html
http://blog.csdn.net/qq_25737169/article/details/78847691
dropout
http://blog.csdn.net/stdcoutzyx/article/details/49022443
CNN
https://zhuanlan.zhihu.com/p/22038289?refer=intelligentunit
RNN、LSTM
http://blog.csdn.net/hjimce/article/details/49095371
http://lib.csdn.net/article/deeplearning/45510
GAN
http://36kr.com/p/5086889.html
https://www.leiphone.com/news/201701/Kq6FvnjgbKK8Lh8N.html