Collection, organization and retrieval of web information are the three main functions of search engine.

搜索引擎具有网上信息收集、组织和检索三大功能。

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Absrtact: Text classification is the base of information retrieval and data mining and it is widely used in web data mining and search engine.

摘要：文本分类是信息检索和数据挖掘的基础，被广泛应用于网络数据挖掘及搜索引擎等方面。

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