With the growth of diversified Web information, the traditional search engines, namely, general search engines have been unable to satisfy people’s personalized information retrieval service. In recent years, the topic-oriented search engine came into being in order to provide more comprehensive and accurate data, lower time complexity of Internet search services.In the subject search engines,
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With the high-speed development of Internet, Web shows the amount of information stored on several geometric growths. However, the amount of information on a broad array of Internet to find needed information is a challenging task. The emergence of general search engine makes its needs in this area has been a certain solution, but because
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These years, because of the brevity and semantic ambiguity of user query words, most search engines face a problem to understand the meaning of query words。How topic search engine to not only accurately understand user submiting information needs, but also possess of the relevant semantic knowledge of query information source, and how to automatically and
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In recent years, with the rapid development of the Internet, our military intelligence and information gathering work has undergone tremendous changes, users often use the Internet search engine queries and the collection of military-related intelligence information, but now most search engine-related technologies for a comprehensive search engine, information retrieval research on the subject is not
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The local topic of web information distribution of presented by the Internet is one of the characteristics of the Internet. With the more and more demand for subject-oriented access to the Internet information, users want access to the information gathering can do better, faster updates, and can automatically discover the main resource area, and then
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