User-Feature Model for Hybrid Recommender System

Abstract : Recommender systems provide relevant items to users from a large number of choices. In this work, we are interested in personalized recommender systems where user model is based on an analysis of usage. Collaborative filtering and content-based filtering are the most widely used techniques in personalized recommender systems. Each technique has its drawbacks, so hybrid solutions, combining the two techniques, have emerged to overcome their disadvantages and benefit from their strengths. In this paper, we propose a hybrid solution combining collaborative filtering and content-based filtering. With this aim, we have defined a new user model, called user- feature model, to model user preferences based on items' features and user ratings. The user-feature model is built from the user item model by using a fuzzy clustering algorithm: the Fuzzy C Mean (FCM) algorithm. Then, we used the user-feature model in a user-based collaborative filtering algorithm to calculate the similarity between users. Applying our approach to the MoviesLens dataset, significant improvement can be noticed comparatively to the main CF algorithm, denoted as user-based collaborative filtering.
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ESCE- University la Manouba (Tunisia), Nancy University (France), IGA (Morocco), IEEE Morocco section. 4th International Conference on Information Systems and Economic Intelligence - SIIE'2011, Mar 2011, Marrakech, Morocco. IGA Maroc, 2011, nformation Systems and Economic Intelligence (SIIE'2011) : 4th International Conference. (Proceedings)
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Sonia Ben Ticha, Azim Roussanaly, Anne Boyer, Khaled Bsaies. User-Feature Model for Hybrid Recommender System. ESCE- University la Manouba (Tunisia), Nancy University (France), IGA (Morocco), IEEE Morocco section. 4th International Conference on Information Systems and Economic Intelligence - SIIE'2011, Mar 2011, Marrakech, Morocco. IGA Maroc, 2011, nformation Systems and Economic Intelligence (SIIE'2011) : 4th International Conference. (Proceedings). 〈inria-00580523〉

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