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• W2806321844 abstract "In the past decade, matrix factorization has been extensively researched and has become one of the most popular techniques for personalized recommendations. Nevertheless, the dot product adopted in matrix factorization based recommender models does not satisfy the inequality property, which may limit their expressiveness and lead to sub-optimal solutions. To overcome this problem, we propose a novel recommender technique dubbed as {em Metric Factorization}. We assume that users and items can be placed in a low dimensional space and their explicit closeness can be measured using Euclidean distance which satisfies the inequality property. To demonstrate its effectiveness, we further designed two variants of metric factorization with one for rating estimation and the other for personalized item ranking. Extensive experiments on a number of real-world datasets show that our approach outperforms existing state-of-the-art by a large margin on both rating prediction and item ranking tasks." @default.
• W2806321844 created "2018-06-13" @default.
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• W2806321844 date "2018-02-13" @default.
• W2806321844 modified "2023-09-24" @default.
• W2806321844 title "Metric Factorization: Recommendation beyond Matrix Factorization" @default.
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• W2806321844 doi "https://doi.org/10.48550/arxiv.1802.04606" @default.
• W2806321844 hasPublicationYear "2018" @default.
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