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Filter-enhanced Hypergraph Transformer framework for Multi -Behavior Sequential Recommendation

Citation Author(s):
Shoujin Wang,Wenpeng Lu,Weiyu Zhang,Hongjiao Guan,Long Zhao
Submitted by:
Zhufeng Shao
Last updated:
11 April 2024 - 10:29am
Document Type:
Poster
Presenters:
Zhufeng Shao
Paper Code:
MLSP-P16.6
 

Sequential recommendation has been developed to predict the next item in which users are most interested by capturing user behavior patterns embedded in their historical interaction sequences. However, most existing methods appear to exhibit limitations in modeling fine-grained dependencies embedded in users’ various periodic behavior patterns and heterogeneous dependencies across multi-behaviors. Towards this end, we propose a Filter-enhanced Hypergraph Transformer framework for Multi-Behavior Sequential Recommendation (FHT-MB) to address the above challenges. Specifically, a multi-scale filter layer equipped with multi-learnable filters is devised to encode behavior-aware sequential patterns emerging from different periodic trends (e.g., daily or weekly routines), and then a hypergraph structure is devised to extract heterogeneous dependencies across users’ multiple types of behaviors. Extensive experiments on two real world e-commerce datasets show the superiority of our proposed FHT-MB over various state-of-the-art methods.

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