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Research and design of the digital library of personalized information services system

Author: QianLi
Tutor: LiuLiZhen
School: Capital Normal University
Course: Applied Computer Technology
Keywords: Digital Library Personalized information services Vector space model Interest in Knowledge Base Naive Bayesian classifier
CLC: G252
Type: Master's thesis
Year: 2008
Downloads: 637
Quote: 7
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Abstract


The rapid development of the global Internet, making the current digital library resources richer information. But currently most of the digital library is not in the massive resource information for users interested in the resources information, in particular, can not provide personalized resources for different user characteristics. Digital library of personalized information services is to take full advantage of the user's personalized information, and offer different services for different periods according to the characteristics of the user, different backgrounds, different purpose reader users, thus improving the quality of digital library services and use of resources rate. In this paper, the Board of Education, Beijing Science and Technology Development Program (Web information integration retrieval technology and knowledge services research and application in the DL), the study and application of the digital library of personalized information services, to achieve a true sense of initiative interactive, personalized information services, fully reflects the main features of the third generation of digital libraries. The main research work and achievements of this paper is as follows: 1. Proposed two models to determine the reader user interest in the field of knowledge. Defined time series model of user behavior, design of algorithms excavated areas of interest where readers users; Second, is defined by the vector space model user access to Web content, guidelines, reference to the reader the user interest TF-IDF-IG The calculation method to determine the area of ??user interest. 2 and design knowledge base of user interest model. First, the analysis of the basic principles and the significance of user interest in the Knowledge Base model created; then, the use of association rules Apriori Improved Algorithm and Na?ve Bayes classification algorithm, knowledge center in the field of user interest, information resource organization, resource information classification tree aspects of the establishment of service rules show users interested in Knowledge Base model design process, so that users are interested in resource information expressed in the form of knowledge; Finally, data simulation. 3. Designed and implemented a digital library of personalized information services system. System from the actual demand use UML modeling analysis, functional design using MVC framework for thinking, the current mainstream Web system development framework J2EE, so that the system has good flexibility, scalability and ease of maintenance advantages.

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CLC: > Culture, science,education, sports > Information and knowledge dissemination > Library science,librarianship > Readers work
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