http://mp.weixin.qq.com/s?__biz=MzAxMjcyNjE5MQ==&mid=2650486420&idx=1&sn=6c6884edabd123b9d2262cde900ba4df&scene=21#wechat_redirect
利用Spark构建推荐系统
原文：http://www.cnblogs.com/charlesblc/p/6392100.html
