Dual-Channel Multiplex Graph Neural Networks for Recommendation

• URL: http://arxiv.org/abs/2403.11624v3
• Date: Fri, 29 Mar 2024 14:20:17 GMT
• Title: Dual-Channel Multiplex Graph Neural Networks for Recommendation
• Authors: Xiang Li, Chaofan Fu, Zhongying Zhao, Guanjie Zheng, Chao Huang, Junyu Dong, Yanwei Yu,
• Abstract summary: We introduce a novel recommendation framework, Dual-Channel Multiplex Graph Neural Network (DCMGNN) It incorporates an explicit behavior pattern representation learner to capture the behavior patterns composed of multiplex user-item interaction relations. It also includes a relation chain representation learning and a relation chain-aware encoder to discover the impact of various auxiliary relations on the target relation.
• Score: 41.834188809480956
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Efficient recommender systems play a crucial role in accurately capturing user and item attributes that mirror individual preferences. Some existing recommendation techniques have started to shift their focus towards modeling various types of interaction relations between users and items in real-world recommendation scenarios, such as clicks, marking favorites, and purchases on online shopping platforms. Nevertheless, these approaches still grapple with two significant shortcomings: (1) Insufficient modeling and exploitation of the impact of various behavior patterns formed by multiplex relations between users and items on representation learning, and (2) ignoring the effect of different relations in the behavior patterns on the target relation in recommender system scenarios. In this study, we introduce a novel recommendation framework, Dual-Channel Multiplex Graph Neural Network (DCMGNN), which addresses the aforementioned challenges. It incorporates an explicit behavior pattern representation learner to capture the behavior patterns composed of multiplex user-item interaction relations, and includes a relation chain representation learning and a relation chain-aware encoder to discover the impact of various auxiliary relations on the target relation, the dependencies between different relations, and mine the appropriate order of relations in a behavior pattern. Extensive experiments on three real-world datasets demonstrate that our \model surpasses various state-of-the-art recommendation methods. It outperforms the best baselines by 10.06\% and 12.15\% on average across all datasets in terms of R@10 and N@10 respectively.

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