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• W2783806899 abstract "The primary task of a memory-based collaborative filtering (CF) recommendation system is to select a group of nearest (similar) user neighbors for an active user. Traditional memory-based CF schemes tend to only focus on improving as much as possible the accuracy by recommending familiar items (i.e., popular items over the group). Yet, this may reduce the number of items that could be recommended and consequently weakens the chances of recommending novel items. To address this problem, it is desirable to consider recommendation coverage when selecting the appropriate group. This could help in simultaneously making both accurate and diverse recommendations. In this paper, we propose to focus mainly on the growing of the large search space of users’ profiles and to use an evolutionary multi-objective optimization-based recommendation system to pull up a group of profiles that maximizes both similarity with the active user and diversity between its members. In such manner, the recommendation system will provide high performances in terms of both accuracy and diversity. The experimental results on the Movielens benchmark and on a real-world insurance dataset show the efficiency of our approach in terms of accuracy and diversity compared to state-of-the-art competitors." @default.
• W2783806899 created "2018-01-26" @default.
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• W2783806899 date "2018-05-01" @default.
• W2783806899 modified "2023-10-09" @default.
• W2783806899 title "Improving memory-based user collaborative filtering with evolutionary multi-objective optimization" @default.
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• W2783806899 doi "https://doi.org/10.1016/j.eswa.2018.01.015" @default.
• W2783806899 hasPublicationYear "2018" @default.
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