怎样量化评价搜索引擎的结果质量
http://www.infoq.com/cn/articles/cyw-evaluate-seachengine-result-quality
http://www.infoq.com/cn/articles/recommendation-and-searchengine?utm_source=infoq&utm_campaign=user_page&utm_medium=link
http://developer.51cto.com/art/201511/497171.htm?utm_source=tuicool&utm_medium=referral
原文：http://www.cnblogs.com/freedommovie/p/7492892.html