User Semantic Preferences for Collaborative Recommendations

Sonia Ben Ticha (1) , Azim Roussanaly (2) , Anne Boyer (2) , Khaled Bsaies (1)

1 URPAH - Unité de Recherche en Programmation Algorithmique et Heuristique
2 KIWI - Knowledge Information and Web Intelligence

Personalized recommender systems provide relevant items to users from huge catalogue. Collaborative filtering (CF) and content-based (CB) filter- ing are the most widely used techniques in personalized recommender systems. CF uses only the user-rating data to make predictions, while CB filtering relies on semantic information of items for recommendation. In this paper we present a new approach taking into account the semantic information of items in a CF system. Many works have addressed this problem by proposing hybrid solu- tions. In this paper, we present another hybridization technique that predicts us- ers "preferences for items based on their inferred preferences for semantic in- formation. With this aim, we propose a new approach to build user semantic profile to model users‟ preferences for semantic information of items. Then, we use this model in a user-based CF algorithm to calculate the similarity between users. We apply our approach to real data, the MoviesLens dataset, and com- pare our results to standards user-based and item-based CF algorithms.

Mots clés: Recommender systems; collaborative filtering; semantic information; user modeling

Domaines: Intelligence artificielle [cs.AI]; Recherche d'information [cs.IR]; Web

Sonia Ben Ticha, Azim Roussanaly, Anne Boyer, Khaled Bsaies. User Semantic Preferences for Collaborative Recommendations. EC-Web 2012 : 13th International Conference on Electronic Commerce and Web Technologies, Sep 2012, Vienne, Austria. pp.203-211, ⟨10.1007/978-3-642-32273-0_18⟩. ⟨hal-00776962⟩