arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2106.09306cs.IRcs.AI
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PEN4Rec:基于会话推荐的偏好演化网络

PEN4Rec: Preference Evolution Networks for Session-based Recommendation

National Computer System Engineering Research Institute of China(国家计算机系统工程研究所);Institute of Information Engineering, Chinese Academy of Sciences(中国科学院信息工程研究所);School of Cyber Security, University of Chinese Academy of Sciences(中国科学院大学网络空间安全学院)

Dou Hu, Lingwei Wei, Wei Zhou, Xiaoyong Huai, Zhiqi Fang, Songlin Hu

摘要:

基于会话的推荐旨在根据用户在匿名会话中的历史行为预测用户的下一个动作。为了获得更好的推荐,捕获用户偏好及其动态至关重要。此外,用户偏好随时间动态演化,每个偏好都有自己的演化轨迹。然而,以往的研究大多忽略了偏好的演化趋势,容易受到偏好漂移效应的干扰。在本文中,我们提出了一种新的基于会话的推荐偏好进化网络(PEN4Rec)模型的偏好进化过程中的两个阶段的检索历史的背景。具体而言,第一阶段过程根据最近的项目整合相关行为。然后,第二阶段的过程模型的偏好演变轨迹随时间的动态和推断丰富的偏好。该过程可以增强相关序列行为在偏好演化中的作用,减弱偏好漂移对偏好演化的干扰。在三个公开数据集上的实验证明了该模型的有效性和优越性。

英文摘要:

Session-based recommendation aims to predict user the next action based on historical behaviors in an anonymous session. For better recommendations, it is vital to capture user preferences as well as their dynamics. Besides, user preferences evolve over time dynamically and each preference has its own evolving track. However, most previous works neglect the evolving trend of preferences and can be easily disturbed by the effect of preference drifting. In this paper, we propose a novel Preference Evolution Networks for session-based Recommendation (PEN4Rec) to model preference evolving process by a two-stage retrieval from historical contexts. Specifically, the first-stage process integrates relevant behaviors according to recent items. Then, the second-stage process models the preference evolving trajectory over time dynamically and infer rich preferences. The process can strengthen the effect of relevant sequential behaviors during the preference evolution and weaken the disturbance from preference drifting. Extensive experiments on three public datasets demonstrate the effectiveness and superiority of the proposed model.

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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