arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.07919cs.IRcs.CL
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基于用户启发的后验网络的推荐理由生成

User-Inspired Posterior Network for Recommendation Reason Generation

State Key Lab. of Computer Science, Institute of Software, Chinese Academy of Sciences(中国科学院软件研究所计算机科学国家重点实验室);Institute of Computing Technology, Chinese Academy of Sciences(中国科学院计算技术研究所);University of Chinese Academy of Sciences(中国科学院大学);Data Science Lab, JD.com(京东数据科学实验室);Baidu Inc.(百度公司)

Haolan Zhan, Hainan Zhang, Hongshen Chen, Lei Shen, Yanyan Lan, Zhuoye Ding, Dawei Yin

摘要:

推荐理由生成旨在向客户展示产品的卖点,对于吸引客户注意力、提升用户体验起着至关重要的作用。一种简单有效的方法是直接从产品知识库中提取关键词,即,属性或标题,作为推荐原因。然而,从产品知识生成推荐理由并不能自然地响应用户的兴趣。幸运的是,在一些电子商务网站上,存在越来越多的用户生成内容(简称用户内容),即,产品问答(QA)讨论,反映用户关心的方面。因此,在本文中,我们考虑生成的推荐原因,不仅考虑到产品属性,但也客户生成的产品QA讨论。事实上,只有最受欢迎的商品才有可能获得足够的用户内容,而大量的长尾产品或新产品无法收集足够数量的用户内容。为了解决这个问题,我们提出了一个用户启发的多源后验Transformer(MSPT),它诱导模型反映用户的兴趣与后验多QA讨论模块,并产生包含产品属性以及用户关心的方面的推荐原因。实验结果表明,该模型优于传统的生成式模型。此外,分析还表明,我们的模型可以更专注于用户关心的方面比基线。

英文摘要:

Recommendation reason generation, aiming at showing the selling points of products for customers, plays a vital role in attracting customers' attention as well as improving user experience. A simple and effective way is to extract keywords directly from the knowledge-base of products, i.e., attributes or title, as the recommendation reason. However, generating recommendation reason from product knowledge doesn't naturally respond to users' interests. Fortunately, on some E-commerce websites, there exists more and more user-generated content (user-content for short), i.e., product question-answering (QA) discussions, which reflect user-cared aspects. Therefore, in this paper, we consider generating the recommendation reason by taking into account not only the product attributes but also the customer-generated product QA discussions. In reality, adequate user-content is only possible for the most popular commodities, whereas large sums of long-tail products or new products cannot gather a sufficient number of user-content. To tackle this problem, we propose a user-inspired multi-source posterior transformer (MSPT), which induces the model reflecting the users' interests with a posterior multiple QA discussions module, and generating recommendation reasons containing the product attributes as well as the user-cared aspects. Experimental results show that our model is superior to traditional generative models. Additionally, the analysis also shows that our model can focus more on the user-cared aspects than 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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