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http://dx.doi.org/10.5391/JKIIS.2007.17.4.488

Collaborative Filtering with Improved Quantification Process for Real-time Context Information  

Lee, Se-Il (공주대학교 컴퓨터공학과)
Lee, Sang-Yong (공주대학교 컴퓨터공학과)
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.17, no.4, 2007 , pp. 488-493 More about this Journal
Abstract
In general, recommendation systems quantify real-time context information obtained in the stage of collaborative filtering and use quantified context information in order to recommend services. But the recommendation systems can have problems of recommending inaccurate information because of lack of context information or classifying users into inaccurate groups because of simple classification works in the stage of quantification. In this paper, we solved the problems of lack of context information obtained in real-time by combining users' profile information used in the contents-based filtering and context information obtained in real-time. In addition, we tried collaborative filtering at the quantification stage by improving absolute classification methods to relative ones. As the result of experiments, this method improved prediction preference by 5.8% than real-time recommendation systems using context information in pure P2P environment.
Keywords
Collaborative Filtering; Context; User Profile; Quantification; Recommendation System;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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