arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.05742cs.IRcs.LG
收藏

推荐系统中基于超长方体的用户表示学习

Learning User Representations with Hypercuboids for Recommender Systems

ETH Zurich(苏黎世联邦理工学院);Alibaba Group(阿里巴巴集团);University of Illinois at Urbana-Champaign(伊利诺伊大学厄巴纳-香槟分校)

Shuai Zhang, Huoyu Liu, Aston Zhang, Yue Hu, Ce Zhang, Yumeng Li, Tanchao Zhu, Shaojian He, Wenwu Ou

摘要:

用户兴趣建模在实际推荐系统中至关重要。在本文中,我们提出了一个新的用户兴趣表示模型的个性化推荐。具体来说,我们模型背后的关键新颖之处在于,它将用户兴趣明确地建模为超长方体,而不是空间中的一个点。在我们的方法中,推荐分数是通过计算用户超立方体和项目之间的组成距离来学习的。这有助于缓解现有协同过滤方法的潜在几何可扩展性,从而实现更大程度的建模能力。此外,我们提出了两个变种的超长方体,以提高能力,在捕捉用户兴趣的diligence。还提出了一种神经架构,以通过捕获活动序列(例如,购买和费率)的用户。我们通过在公共和商业数据集上的广泛实验证明了我们提出的模型的有效性。实证结果表明,我们的方法取得了非常有前途的结果,优于现有的最先进的。

英文摘要:

Modeling user interests is crucial in real-world recommender systems. In this paper, we present a new user interest representation model for personalized recommendation. Specifically, the key novelty behind our model is that it explicitly models user interests as a hypercuboid instead of a point in the space. In our approach, the recommendation score is learned by calculating a compositional distance between the user hypercuboid and the item. This helps to alleviate the potential geometric inflexibility of existing collaborative filtering approaches, enabling a greater extent of modeling capability. Furthermore, we present two variants of hypercuboids to enhance the capability in capturing the diversities of user interests. A neural architecture is also proposed to facilitate user hypercuboid learning by capturing the activity sequences (e.g., buy and rate) of users. We demonstrate the effectiveness of our proposed model via extensive experiments on both public and commercial datasets. Empirical results show that our approach achieves very promising results, outperforming existing state-of-the-art.

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。

↑