基于GPS历史的活动推荐

By goodbee On 2011-03-02 · Leave a Comment

LBS如今一般只针对当前位置进行推荐，或者根据参加的活动历史进行推荐。下面这篇文章说的是基于位置的历史进行推荐。甚至能挖掘用户想去哪里。哪里才是最适合你的。（题外话：基于统计分析的位置推荐成功了，会不会出现电子婚介，告诉你哪一天去哪里，会遇到对的人）http://research.microsoft.com/apps/pubs/default.aspx?id=119088

Tagged with: LBS • 数据挖掘

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负载驱动的索引碎片整理

下面这篇文章的内容是关于对数据库索引的碎片整理，通过估算碎片对性能的影响，提出合理的建议。同时支持对索引的一部分进行整理，而不是对整个B+树。作者已经实现了一个针对sql server的工具。其它的数据库可以跟进了。呵呵 http://research.microsoft.com/apps/pubs/default.aspx?id=115263 […]

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