arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2410.22013cs.IRcs.AI
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面向序列推荐的时序正负激励建模

Modeling Temporal Positive and Negative Excitation for Sequential Recommendation

The University of New South Wales(新南威尔士大学);University of Technology Sydney(悉尼科技大学);CSIRO’s Data 61(联邦科学与工业研究组织数据61);UNSW(新南威尔士大学)

Chengkai Huang, Shoujin Wang, Xianzhi Wang, Lina Yao

AI总结:

针对现有序列推荐忽略用户静态兴趣与负向激励的问题,提出含TPNE模块的SDIL框架,同时建模两类兴趣与正负激励,在三个真实数据集上性能超越SOTA基线。

摘要:

序列推荐旨在通过建模用户随时间变化的物品兴趣,预测用户接下来感兴趣的物品。现有多数序列推荐工作建模用户对特定物品的动态兴趣,却忽略了由物品静态属性信息(如类别、品牌)所反映的用户静态兴趣。此外,现有工作通常仅考虑用户历史交互对其下一个候选物品选择的正向激励,而忽略了普遍存在的负向激励,导致动态兴趣建模不充分。对静态兴趣和负向激励的忽视会造成兴趣建模不完整,进而影响推荐性能。为此,本文提出同时为动态兴趣建模静态兴趣与负向激励,以进一步提升推荐性能。据此,我们设计了一种全新的静态-动态兴趣学习(Static-Dynamic Interest Learning, SDIL)框架,该框架配备了新颖的时序正负激励建模(Temporal Positive and Negative Excitation Modeling, TPNE)模块,用于实现精准的序列推荐。TPNE 模块专门用于基于时序正负激励学习,全面建模动态兴趣。在三个真实世界数据集上开展的大量实验表明,SDIL 能够有效捕捉静态与动态兴趣,性能优于当前最优基线模型。

英文摘要:

Sequential recommendation aims to predict the next item which interests users via modeling their interest in items over time. Most of the existing works on sequential recommendation model users' dynamic interest in specific items while overlooking users' static interest revealed by some static attribute information of items, e.g., category, or brand. Moreover, existing works often only consider the positive excitation of a user's historical interactions on his/her next choice on candidate items while ignoring the commonly existing negative excitation, resulting in insufficient modeling dynamic interest. The overlook of static interest and negative excitation will lead to incomplete interest modeling and thus impede the recommendation performance. To this end, in this paper, we propose modeling both static interest and negative excitation for dynamic interest to further improve the recommendation performance. Accordingly, we design a novel Static-Dynamic Interest Learning (SDIL) framework featured with a novel Temporal Positive and Negative Excitation Modeling (TPNE) module for accurate sequential recommendation. TPNE is specially designed for comprehensively modeling dynamic interest based on temporal positive and negative excitation learning. Extensive experiments on three real-world datasets show that SDIL can effectively capture both static and dynamic interest and outperforms state-of-the-art baselines.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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