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- W2289278511 abstract "Since the users’ decision making depends on the situation the user is in, contextual information has shown to improve the recommendation procedure in context-aware recommender systems (RS). In our previous work we have shown that relevant contextual factors have signicantly improved the quality of rating prediction in RS, while the irrelevant ones have degraded the prediction. In this work we focus on the detection of relevant contextual conditions (i.e., values of contextual factors) which inuence the users’ decision making process. The goals are (i) to lower the intrusion for the end user by simplifying the acquisition process, and (ii) to reduce the sparsity of the acquired data during the contextual modeling. The results showed signicant improvement in the rating prediction task, when managing the irrelevant contextual conditions by the approach that we propose in this paper." @default.
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- W2289278511 date "2013-01-01" @default.
- W2289278511 modified "2023-09-23" @default.
- W2289278511 title "Managing Irrelevant Contextual Categories in a Movie Recommender System" @default.
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