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- W2369820350 abstract "This paper improves traditional collaborative filtering algorithm,proposes a new user profile based on concept hierarchy tree,which can make recommender systems still work even when users have no common rating items.In the process of similarity calculation and recommendation formation,it also uses concept hierarchy thought to generate recommendation lists by different categories,avoiding recommendation lack of diversity.Experimental results on MovieLens dataset show that the improved algorithm can provide better prediction in either accuracy or diversity aspect." @default.
- W2369820350 created "2016-06-24" @default.
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- W2369820350 date "2007-01-01" @default.
- W2369820350 modified "2023-09-27" @default.
- W2369820350 title "Personalized Recommendation Algorithm Based on Concept Hierarchy Tree" @default.
- W2369820350 hasPublicationYear "2007" @default.
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