%0 Conference Proceedings %T User Relevance for Item-Based Collaborative Filtering %+ Department of Applied Mathematics and Computational Sciences [Nadu] %A Latha, R. %A Nadarajan, R. %Z Part 6: Networking %< avec comité de lecture %( Lecture Notes in Computer Science %B 12th International Conference on Information Systems and Industrial Management (CISIM) %C Krakow, Poland %Y Khalid Saeed %Y Rituparna Chaki %Y Agostino Cortesi %Y Sławomir Wierzchoń %I Springer %3 Computer Information Systems and Industrial Management %V LNCS-8104 %P 337-347 %8 2013-09-25 %D 2013 %R 10.1007/978-3-642-40925-7_31 %K Collaborative filtering %K Recommendation System %K Information Retrieval %K User Relevance %Z Computer Science [cs] %Z Humanities and Social Sciences/Library and information sciencesConference papers %X A Collaborative filtering (CF), one of the successful recommendation approaches, makes use of history of user preferences in order to make predictions. Common drawback found in most of the approaches available in the literature is that all users are treated equally. i.e., all users have same importance. But in the real scenario, there are users who rate items, which have similar rating pattern. On the other hand, some users provide diversified ratings. We assign relevance scores to users based on their rating pattern in order to improve the quality of predictions. To do so, we incorporate probability based user relevance scores into the similarity calculations. The improvement of predictions of benchmark item based CF approach with the inclusion of user relevance score is demonstrated in the paper. %G English %Z TC 8 %2 https://inria.hal.science/hal-01496080/document %2 https://inria.hal.science/hal-01496080/file/978-3-642-40925-7_31_Chapter.pdf %L hal-01496080 %U https://inria.hal.science/hal-01496080 %~ SHS %~ IFIP-LNCS %~ IFIP %~ IFIP-TC %~ IFIP-TC8 %~ IFIP-CISIM %~ IFIP-LNCS-8104