With the rapid development of the Internet, Web has been the most important platform for modern people to share information and resources. Mining the characteristics of the Web is essential to obtain and understand the information on the Web. Because of the self-organization of the Web, there are many communities in the Web, and how
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With the rapid growth of Open Access (OA) journals on the Internet, the state of”isolated island” for OA journal websites has become increasingly obvious, whichrestricts the efficiency of the OA journals to bring into full play. An effective way tosolve this problem is to integrate the OA journal websites online and provide auniform, transparent retrieval
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Search engines can pick out the most relevant collection of pages from the hundreds ofmillions of web pages, making it more convenient for people to use the World Wide Web. Asthe core component of a search engine, the page ranking algorithm determines in what orderthe search results should be presented to users and its performance
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With the popularity of the Internet, the number of web pages has grownexponentially, and it is greatly difficult to get information through the existing searchengines. First of all, the search results with the search engine contain mixed themes,which are not classified according to the themes and make the users more difficultlyto get the topic type
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With the popularity of the Internet, the number of web pages has grownexponentially, and it is greatly difficult to get information through the existing searchengines. First of all, the search results with the search engine contain mixed themes,which are not classified according to the themes and make the users more difficultlyto get the topic type
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Along with the rapid development of the internet, internet information to the speed of the fast growth, search engine has become one of the indispensable way to the people to obtain information in the life, in the modern search engine, the crawler occupies a very important role, it is the core of the search engine,
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With the continuous development of social informatizing course, the information needs of people are increasing. How to access useful information fast and efficiently has become focus of people. The research on information retrieval can help people find interesting information effectively, and help them get useful knowledge.The core issue of information retrieval is the prediction of
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With the continuous development of social informatizing course, the information needs of people are increasing. How to access useful information fast and efficiently has become focus of people. The research on information retrieval can help people find interesting information effectively, and help them get useful knowledge.The core issue of information retrieval is the prediction of
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The high-speed developed and disorganized World Wide Web makes the Web information retrieval more and more difficult.The traditional search engines were the powerful tools for the users to retrieve information in the past,but now,they can’t keep pace with the development of WWW.At first , the thesis analyses the challenges faced by Web information retrieval.And analyses
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With the continuous development of social informatizing course, the information needs of people are increasing. How to access useful information fast and efficiently has become focus of people. The research on information retrieval can help people find interesting information effectively, and help them get useful knowledge.The core issue of information retrieval is the prediction of
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