arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.12404cs.IRcs.LG
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推荐系统的多样性正则化兴趣建模

Diversity Regularized Interests Modeling for Recommender Systems

Alibaba Group(阿里巴巴集团)

Junmei Hao, Jingcheng Shi, Qing Da, Anxiang Zeng, Yujie Dun, Xueming Qian, Qianying Lin

摘要:

随着电子商务的迅速发展和商品数量的不断增加,用户所面对的商品越来越多,兴趣也越来越广泛。传统的方法通过将单个用户向量和项目向量相结合来建模用户对项目的偏好,这使得用户意图建模变得越来越困难。近年来,提出了一些方法来产生多个用户兴趣向量,并取得了比传统方法更好的性能。然而,实证研究表明,从这些多利益的方法生成的向量有时是同质的,这可能会导致次优性能。本文提出了一种新的推荐系统的多样性正则化兴趣建模(DRIM)方法。我们在多兴趣提取器中应用胶囊网络来生成多个用户兴趣向量。用户的每个兴趣都应该有一定程度的区别,因此我们引入了三种策略作为多样性正则化分离器来分离多个用户兴趣向量。公共和工业数据集上的实验结果表明,该模型能够捕捉不同的用户的兴趣和所提出的方法的优越性能。

英文摘要:

With the rapid development of E-commerce and the increase in the quantity of items, users are presented with more items hence their interests broaden. It is increasingly difficult to model user intentions with traditional methods, which model the user's preference for an item by combining a single user vector and an item vector. Recently, some methods are proposed to generate multiple user interest vectors and achieve better performance compared to traditional methods. However, empirical studies demonstrate that vectors generated from these multi-interests methods are sometimes homogeneous, which may lead to sub-optimal performance. In this paper, we propose a novel method of Diversity Regularized Interests Modeling (DRIM) for Recommender Systems. We apply a capsule network in a multi-interest extractor to generate multiple user interest vectors. Each interest of the user should have a certain degree of distinction, thus we introduce three strategies as the diversity regularized separator to separate multiple user interest vectors. Experimental results on public and industrial data sets demonstrate the ability of the model to capture different interests of a user and the superior performance of the proposed approach.

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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