News Recommender System Based on Topic Detection and Tracking

Authors:
Jing Qiu;Lejian Liao;Peng Li
Affiliations:
Beijing Laboratory of Intelligent Information Technology, School of Computer Science, Beijing Institute of Technology, Beijing, China 100081;Beijing Laboratory of Intelligent Information Technology, School of Computer Science, Beijing Institute of Technology, Beijing, China 100081;Beijing Laboratory of Intelligent Information Technology, School of Computer Science, Beijing Institute of Technology, Beijing, China 100081
Venue:
RSKT '09 Proceedings of the 4th International Conference on Rough Sets and Knowledge Technology
Year:
2009

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Abstract

In web recommender systems, clustering is done offline to extract usage patterns and a successful recommendation highly depends on the quality of this clustering solution. As for collaborative recommendation, there are two ways to calculate the similarity for clique recommendation: Item-based Clustering Method and User-based Clustering Method. Researches have proved that item-based collaborative filtering is better than user-based collaborative filtering at precision and computation complexity. However, the common item-based clustering technologies could not quite suit for news recommender system, since the news events evolve fast and continuous. In this paper, we suggest using technologies of TDT to group news items instead of common item-based clustering technologies. Experimental results are examined that shows the usefulness of our approach.