Sequential recommendation based on multivariate Hawkes process embedding with attention

Dongjing WANG, Xin ZHANG, Zhengzhe XIANG, Dongjin YU, Guandong XU, Shuiguang DENG

Research output: Contribution to journalArticlespeer-review

3 Citations (Scopus)

Abstract

Recommender systems are important approaches for dealing with the information overload problem in the big data era, and various kinds of auxiliary information, including time and sequential information, can help improve the performance of retrieval and recommendation tasks. However, it is still a challenging problem how to fully exploit such information to achieve high-quality recommendation results and improve users' experience. In this work, we present a novel sequential recommendation model, called multivariate Hawkes process embedding with attention (MHPE-a), which combines a temporal point process with the attention mechanism to predict the items that the target user may interact with according to her/his historical records. Specifically, the proposed approach MHPE-a can model users' sequential patterns in their temporal interaction sequences accurately with a multivariate Hawkes process. Then, we perform an accurate sequential recommendation to satisfy target users' real-time requirements based on their preferences obtained with MHPE-a from their historical records. Especially, an attention mechanism is used to leverage users' long/short-term preferences adaptively to achieve an accurate sequential recommendation. Extensive experiments are conducted on two real-world datasets (lastfm and gowalla), and the results show that MHPE-a achieves better performance than state-of-the-art baselines. Copyright © 2021 IEEE.

Original languageEnglish
Pages (from-to)11893-11905
JournalIEEE Transactions on Cybernetics
Volume52
Issue number11
Early online dateJun 2021
DOIs
Publication statusPublished - Nov 2022

Citation

Wang, D., Zhang, X., Xiang, Z., Yu, D., Xu, G., & Deng, S. (2022). Sequential recommendation based on multivariate Hawkes process embedding with attention. IEEE Transactions on Cybernetics, 52(11), 11893-11905. https://doi.org/10.1109/TCYB.2021.3077361

Keywords

  • Attention
  • Embedding
  • Multivariate Hawkes process
  • Recommender system
  • Sequential recommendation

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