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文章标签 ‘Tanimoto系数’

动手构建一个推荐系统(Recommendation System)

2010年7月11日 19 条评论

写在前面:本文通过构建一个电影推荐系统,深入浅出的介绍推荐系统相关的概念、算法,让读者朋友能够在对推荐系统有比较全面的认识的基础之上,能够轻松地构建出自己的推荐系统。

1. 什么是推荐系统(Recommendation System)

推荐系统是指根据一个群体的偏好,来为群体中的成员提供推荐的系统。现实生活中这样的例子很多,比如豆瓣(Douban.com)读书中的“豆瓣猜”功能,它根据你看过的一些书和相关评价,与整个豆瓣社区其它会员看过的书与评价经过一系列的计算,就能给你推荐一些你没有读过的,但有可能感兴趣的书(如下图所示):
这是我读过的或者正在读的书:
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