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Author:

Zhang, Aiwei (Zhang, Aiwei.) | Li, Bowen (Li, Bowen.) | Wang, Kai (Wang, Kai.) | Yang, Yisheng (Yang, Yisheng.) | Zhang, Xiaodan (Zhang, Xiaodan.) | Lei, Minglong (Lei, Minglong.)

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EI Scopus

Abstract:

Graph Neural Networks (GNNs) have been widely used in recommendation systems due to their effectiveness in capturing intricate interactions within graph structures. However, existing approaches employ the layer-wise message-passing scheme and can hardly extract the higher-order relationships in user and item graphs. Besides, these methods often rely on single-view relations and have limited ability in extracting effective features with comprehensive information. To address these problems, we propose a multi-view contrastive learning approach based on higher-order graph neural networks named HMCL to incorporate multi-view information with the higher-order relationships. In detail, our model utilizes multi-hop neighbors with meta-paths to capture higher-order relationships. We also integrate intra-view and cross-view contrasts to construct a multi-view contrastive learning pipeline that carefully combines global and local information to improve the feature learning ability of GNNs. HMCL effectively utilizes similar groups of users and items and enhances the robustness to data sparsity. Experiments conducted on several benchmark datasets demonstrate that HMCL exhibits superior recommendation performance. Experimental analysis also indicates that HMCL effectively mitigates data sparsity and popularity bias. © 2024 The Authors.

Keyword:

Recommender systems Graph neural networks Federated learning Adversarial machine learning Contrastive Learning Graph algorithms Neural network models

Author Community:

  • [ 1 ] [Zhang, Aiwei]College of Computer Science, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Li, Bowen]College of Computer Science, Beijing University of Technology, Beijing; 100124, China
  • [ 3 ] [Wang, Kai]College of Computer Science, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Yang, Yisheng]College of Computer Science, Beijing University of Technology, Beijing; 100124, China
  • [ 5 ] [Zhang, Xiaodan]College of Computer Science, Beijing University of Technology, Beijing; 100124, China
  • [ 6 ] [Zhang, Xiaodan]Beijing Institute of Artificial Intelligence, Beijing University of Technology, Beijing; 100124, China
  • [ 7 ] [Lei, Minglong]College of Computer Science, Beijing University of Technology, Beijing; 100124, China
  • [ 8 ] [Lei, Minglong]Beijing Institute of Artificial Intelligence, Beijing University of Technology, Beijing; 100124, China

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Year: 2024

Volume: 242

Page: 1147-1154

Language: English

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ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 2

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