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arXiv 2102.03089cs.IR
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利用评论属性进行有效推荐

Leveraging Review Properties for Effective Recommendation

Xi Wang, Iadh Ounis, Craig Macdonald

摘要:

许多最先进的推荐系统通过考虑用户发布的显式项目评论在表示用户偏好和描述项目属性方面的有用性来利用它们。这些发布的评论可以具有各种相关联的属性,诸如它们的长度、自从它们被发布以来的它们的年龄、或者它们的项目评级。然而,目前尚不清楚这些不同的审查属性如何有助于其相应的审查在解决建议任务中的有用性。特别是,用户在考虑评论的不同方面(即属性)时表现出不同的偏好,以做出关于项目的决定。因此,在学习用户偏好和项目属性的同时,对评论属性和评论有用性之间的关系进行建模是很重要的。因此,我们建议使用相关的可用属性对评论进行建模。我们介绍了一种新的审查属性为基础的推荐模型(RPRM),学习审查属性是更重要的比别人在捕捉有用的评论,从而提高推荐结果。此外,受用户信息采纳框架的启发,我们将两个损失函数和一个负抽样策略集成到我们提出的RRRM模型中,以确保评论的属性与用户的偏好相关。我们使用著名的Yelp和Amazon数据集来检查RPRM的有效性。我们的研究结果表明,RRRM显着优于经典和五个国家的最先进的基线。此外,我们实验表明,使用我们提出的损失函数和负采样策略的优势,进一步提高了推荐性能的建议。

英文摘要:

Many state-of-the-art recommendation systems leverage explicit item reviews posted by users by considering their usefulness in representing the users' preferences and describing the items' attributes. These posted reviews may have various associated properties, such as their length, their age since they were posted, or their item rating. However, it remains unclear how these different review properties contribute to the usefulness of their corresponding reviews in addressing the recommendation task. In particular, users show distinct preferences when considering different aspects of the reviews (i.e. properties) for making decisions about the items. Hence, it is important to model the relationship between the reviews' properties and the usefulness of reviews while learning the users' preferences and the items' attributes. Therefore, we propose to model the reviews with their associated available properties. We introduce a novel review properties-based recommendation model (RPRM) that learns which review properties are more important than others in capturing the usefulness of reviews, thereby enhancing the recommendation results. Furthermore, inspired by the users' information adoption framework, we integrate two loss functions and a negative sampling strategy into our proposed RPRM model, to ensure that the properties of reviews are correlated with the users' preferences. We examine the effectiveness of RPRM using the well-known Yelp and Amazon datasets. Our results show that RPRM significantly outperforms a classical and five state-of-the-art baselines. Moreover, we experimentally show the advantages of using our proposed loss functions and negative sampling strategy, which further enhance the recommendation performances of RPRM.

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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