arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.10456cs.IRcs.CLcs.LG
收藏

用户和项目感知的评论有用性估计

User and Item-aware Estimation of Review Helpfulness

Università degli Studi di Torino(都灵大学)

Noemi Mauro, Liliana Ardissono, Giovanna Petrone

摘要:

在在线评论网站中,分析用户反馈以评估其对决策的帮助通常是通过本地研究单个评论的属性来进行的。然而,还应考虑全局属性,以精确评估用户反馈的质量。在本文中,我们调查的作用,偏差的属性的评论作为有用的决定因素与直觉,“出核心”的反馈有助于项目评估。我们提出了一种新的有用性估计模型,扩展了以前的分析偏差的评级,长度和极性相对于由同一个人写的评论,或关于同一个项目。对从Yelp社交网络中提取的两个大型评论数据集进行的回归分析表明,基于用户的评论长度和评级偏差明显影响了感知的有用性。此外,在相同的数据集上的实验表明,我们的有用性估计模型的集成提高了性能的协作推荐系统,通过提高选择高质量的数据进行评级估计。因此,我们的模型是一个有效的工具来选择相关的用户反馈的决策。

英文摘要:

In online review sites, the analysis of user feedback for assessing its helpfulness for decision-making is usually carried out by locally studying the properties of individual reviews. However, global properties should be considered as well to precisely evaluate the quality of user feedback. In this paper we investigate the role of deviations in the properties of reviews as helpfulness determinants with the intuition that "out of the core" feedback helps item evaluation. We propose a novel helpfulness estimation model that extends previous ones with the analysis of deviations in rating, length and polarity with respect to the reviews written by the same person, or concerning the same item. A regression analysis carried out on two large datasets of reviews extracted from Yelp social network shows that user-based deviations in review length and rating clearly influence perceived helpfulness. Moreover, an experiment on the same datasets shows that the integration of our helpfulness estimation model improves the performance of a collaborative recommender system by enhancing the selection of high-quality data for rating estimation. Our model is thus an effective tool to select relevant user feedback for decision-making.

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。

↑