其次，提出从导航路径中利用构造复合后缀树的方法来挖掘用户关键路径，并利用关键路径将用户聚类成不同的兴趣群。

Second, general suffix tree algorithm is used to mine the key path from user's all navigation paths, and using key path to cluster all users into different interest groups.

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因此，本文将后缀树算法应用到元搜索引擎中，设计了一个带聚类的元搜索引擎系统。

Therefore, this article applies suffix tree algorithm to the meta search engines, and designs a meta search engine systems with a clustering algorithm.

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因此，本文将后缀树算法应用到元搜索引擎中，设计了一个带聚类的元搜索引擎系统。

Therefore, this article applies suffix tree algorithm to the meta search engines, and designs a meta search engine systems with a clustering algorithm.

youdao