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User Interest Model of RSS Personalized Information Service Research and Application

Author: GuoLiJun
Tutor: ZhuQunXiong
School: Beijing University of Chemical Technology
Course: Applied Computer Technology
Keywords: RSS Personalized information services User interest model Vector space model Agricultural information
CLC: TP393.09
Type: Master's thesis
Year: 2010
Downloads: 172
Quote: 7
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Abstract


The explosive growth of the rapid development of the Internet has brought information resources , people need to spend a lot of time and effort to filter out the information they need from the complex, vast amounts of information . Information Lost and increasingly serious problem of \Search engines are the main information search tools , use the search engine returns results quantity , quality varies greatly , difficult to screening and screening , and require users to have professional retrieval of knowledge and experience is difficult for ordinary users , and search information with a lag . RSS (Really Simple Syndication) is an easy way for an information aggregation using RSS technology can push information timely and convenient for people to provide the latest information . However , the current RSS information services provided to each user unification , the lack of personalization features . RSS personalized information services , and core user interest modeling techniques . In the research areas of user interest model based on RSS data source , the existing model is a three-tier structure of the tree the user interest model , from the root node of the user model , the categories of information and user interest subclass composition . Improved representation of the original model , the form of keywords weights calculated , and the interest of the user marked the long - term interests and short-term interest , different update mechanism for the two different interest . The experiments show that the improved model , a higher degree of personalization , more timely and accurate update user interest . The application of the model in the field of agricultural information , verify the value of the subject of this study .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > The application of computer network
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