The Research, Design And Realization Of The System Of Personalized Search Engine

With the rapid expansion and development of the World Wide Web information,the search engines are used more frequently. But many people aren't satisfied with the searched results. Search Engines need more to improve. Based on this circumstance,the writer at first analyses the development trend of the present information service as the bases of the thesis,then presents the conception of "personalized search engine". At last the writer not only projects a whole personalized search engine system,but also realizes parts of the system.The thesis consists of five main parts. The first part introduces the conception,operation principle and the actual shortcomings of search engines.The second part introduces the conception and realization conditions of the personalized information service. Then it analyses the main ways and objects of the personalized information service. And finally the writer presents the future development trend of the search engines-Personalized Search Engine.The third part researches present examples of the personalized WWW information service. They include such examples as the personalized service of electronic commerce,the personalized customization of the search engine,the PERSIVAL system,the personalized service of the portal website,the personalized service of the special website and the special software for personalization produced by Huicong company.The fourth part introduces the main technology that is needed in the design ofthe personalized search engine system. The technology includes intelligent agent,conception retrieval technology,user interests digging technology,web mining,information push technology and xml.Based on the theory and technology analysis,the fifth part describes the design of the personalized search engine system and discusses the details to realize some functions in the system,including the programming environment,concrete functions and core data model analysis. Finally the writer points out the shortcomings,development trend and application fields of the experimental personalized search engine system.