A Comment Aspect-Level User Preference Transfer Model for Cross-Domain Recommendations

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Wumei Zhang, Jianping Zhang, Yongzhen Zhang
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引用次数: 0

Abstract

Traditional cross-domain recommendation models make it difficult to deeply mine users' aspect-level preferences from comment information due to existing problems such as polysemy of comment text, sparse comment data, and user cold start. A Cross-Domain Recommender (CDR) model that integrates comment knowledge enhancement and aspect-level user preference transfer (C-KE-AUT) was proposed to address the above issues. Firstly, an aspect-level user preference extraction model was constructed by combining the RoBERTa word embedding model, high-level feature representation based on Transformer, and aspect-level attention-learning methods. Then, a user aspect-level preference cross-domain transfer model was constructed based on a two-stage generative adversarial network that can transfer the aspect-level interest preferences of users in the source domain to the target domain with sparse data. The experimental results on the Amazon 2018 comment dataset indicated that the recommendation performance of the proposed C-KE-AUT model was significantly superior to other advanced comparative models.
用于跨域推荐的评论式方面级用户偏好转移模型
由于存在评论文本多义性、评论数据稀疏、用户冷启动等问题,传统的跨域推荐模型难以从评论信息中深度挖掘用户的方面级偏好。针对上述问题,我们提出了一种将评论知识增强和方面级用户偏好转移(C-KE-AUT)相结合的跨域推荐模型(CDR)。首先,结合 RoBERTa 词嵌入模型、基于 Transformer 的高级特征表示和方面级注意力学习方法,构建了方面级用户偏好提取模型。然后,基于两阶段生成式对抗网络构建了用户方面级偏好跨域转移模型,该模型可以在数据稀疏的情况下将源域用户的方面级兴趣偏好转移到目标域。在亚马逊2018评论数据集上的实验结果表明,所提出的C-KE-AUT模型的推荐性能明显优于其他高级比较模型。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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