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- W1988744210 abstract "Context-Aware Recommender Systems locally adapt to a specific contextual situation the rating prediction computed by a traditional context-free recommender. In this paper we present a novel semantic pre-filtering approach that can be tuned to the optimal level of contextualization by aggregating contextual situations that are similar to the target one. The similarities of contextual situations are derived from the available contextually tagged users' ratings according to how similarly the contextual conditions influence the user's rating behavior. We present an extensive evaluation of the performance of our pre-filtering approach on several data sets, showing that it outperforms state-of-the-art context-aware Matrix Factorization approaches." @default.
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- W1988744210 date "2013-10-12" @default.
- W1988744210 modified "2023-09-23" @default.
- W1988744210 title "Local context modeling with semantic pre-filtering" @default.
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- W1988744210 doi "https://doi.org/10.1145/2507157.2507218" @default.
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