https://blog.csdn.net/weixin_37993251
http://chenrudan.github.io/blog/2017/10/30/introductiontotransferlearning.html
http://chenrudan.github.io/blog/2017/12/15/domainadaptation1.html
迁移学习
原文：https://www.cnblogs.com/jiangkejie/p/11599340.html
