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作者:

Yuan, Huanhuan (Yuan, Huanhuan.) | Yang, Jian (Yang, Jian.) | Huang, Jiajin (Huang, Jiajin.)

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EI Scopus SCIE

摘要:

Organizing user-item interaction data into a graph has brought many benefits to recommendation methods. Compared with the user-item bipartite graph structure, a hypergraph structure provides a natural way to directly model high-order correlations among users or items. Hypergraph Convolution Network (HGCN) has the capability of aggregating and propagating latent features of nodes in the hypergraph nonlinearly. Recently, recommendation models based on simplified HGCN have shown good performance. However, such models lose the powerful expression ability of feature crossing and suffer from limited labeled data. To tackle these two problems, a framework called HGCN-CC is proposed to improve HGCN with feature Crossing and Contrastive learning. Specifically, HGCN is combined with a feature cross network in a parallel manner to balance between feature crossing and over smoothing. By such a design, HGCN-CC not only utilizes simplified propagation operation in HGCN to capture high-order correlations among users or items, but also enjoys the powerful expressing ability of high-order feature interactions. Furthermore, HGCN-CC resorts to contrastive learning to help learn good representations. Under the HGCN-CC framework, two models called item-based HGCN-CC (I-HGCN-CC) and user-based HGCN-CC (U-HGCN-CC) are constructed to emphasize different aspects of data. Results of extensive experiments on four benchmark datasets demonstrate that proposed models have superiority in modelling hypergraph structure data for recommendations.

关键词:

Feature crossing Contrastive learning Collaborative filtering Hypergraph convolution network

作者机构:

  • [ 1 ] [Yuan, Huanhuan]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China
  • [ 2 ] [Yang, Jian]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China
  • [ 3 ] [Huang, Jiajin]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China
  • [ 4 ] [Yuan, Huanhuan]Beijing Int Collaborat Base Brain Informat & Wisd, Beijing 100124, Peoples R China
  • [ 5 ] [Yang, Jian]Beijing Int Collaborat Base Brain Informat & Wisd, Beijing 100124, Peoples R China
  • [ 6 ] [Huang, Jiajin]Beijing Int Collaborat Base Brain Informat & Wisd, Beijing 100124, Peoples R China

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来源 :

APPLIED INTELLIGENCE

ISSN: 0924-669X

年份: 2022

期: 9

卷: 52

页码: 10220-10233

5 . 3

JCR@2022

5 . 3 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:49

JCR分区:2

中科院分区:2

被引次数:

WoS核心集被引频次: 8

SCOPUS被引频次: 7

ESI高被引论文在榜: 0 展开所有

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