协同过滤

入门：http://www.cnblogs.com/wentingtu/archive/2011/12/16/2289926.html

例子：http://it.sohu.com/20160323/n441708747.shtml

    http://dblab.xmu.edu.cn/blog/1284-2/

py code :http://itindex.net/detail/55427-spark-mllib-协同过滤

介绍：http://blog.csdn.net/dark_scope/article/details/17228643

代码 http://blog.csdn.net/anryyang/article/details/23563237