http://muricoca.github.io/crab/ http://blog.csdn.net/sinat_30665603/article/details/54836915 http://blog.csdn.net/sinat_30665603/article/details/54847532 http://www.cnblogs.com/lifegoesonitself/archive/2013/06/15/3137266.html
http://www.wbrecom.com
https://help.aliyun.com/document_detail/30369.html?spm=5176.doc30370.6.539.J2Pl2B http://recsys.baidu.com/ https://cloud.baidu.com/solution/recommender.html http://tuijian.qq.com/
