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Group Recommendation Method with Nash Equilibrium Strategy and Neural Collaborative Filtering |
LI Lin1, WANG Peipei1, DU Jia1, ZHOU Dong2 |
1. School of Computer Science and Artificial Intelligence, Wuhan University of Technology, Wuhan 430070; 2. School of Computer Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201 |
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Abstract The preference fusion of group members is the central problem of group recommendation. Most of the traditional fusion strategies are single type strategy, and they cannot meet the overall preference needs of the group to some extent. Therefore, a group recommendation method with Nash equilibrium strategy and neural collaborative filtering is proposed. The nonlinear interaction of potential feature vectors between users and items is obtained through multi-layer perceptron, and then the latent factor model and multi-layer perceptron are combined to realize collaborative filtering recommendation between users and items. Furthermore, a fusion strategy based on Nash equilibrium is designed based on individual recommendation scores to ensure maximum average satisfaction of group members. Experimental results on KDD CUP dataset show that the proposed method generates better recommendation performance than the benchmark method in terms of recommendation model and fusion strategy.
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Received: 28 February 2022
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Fund:Youth Project of National Natural Science Foundation of China(No.62106070), Key Research and Development Project of Hubei Province(No.2021BAA030) |
Corresponding Authors:
LI Lin, Ph.D., professor. Her research interests include information retrieval, recommender systems, machine learning and data mining.
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About author:: WANG Peipei, Ph.D. candidate. Her research interests include natural language processing and recommender systems.DU Jia, master student. His research in-terests include data mining, group recommendation and information retrieval.ZHOU Dong, Ph.D., professor. His research interests include data mining, information retrieval and recommender systems. |
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