arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2003.07051cs.IRcs.SI
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用于推荐系统的深度神经评论文本交互

Deep Neural Review Text Interaction for Recommendation Systems

Parisa Abolfath Beygi Dezfouli, Saeedeh Momtazi, Mehdi Dehghan

摘要:

用户的评论包含有价值的信息,而这些信息在大多数推荐系统中没有被考虑在内。根据该领域的最新研究,使用评论文本不仅可以提高推荐性能,而且可以减轻数据稀疏性的影响,有助于解决冷启动问题。在本文中,我们提出了一个神经推荐模型,推荐项目,利用用户评论。为了预测每个项目的用户评分,我们提出的模型,命名为匹配金字塔推荐系统(MPRS),代表每个用户和项目与其相应的评论文本。因此,推荐问题被视为一个文本匹配问题,使得从匹配用户和项目文本中获得的匹配分数可以被认为是它们的联合相似程度的良好代表。为了解决文本匹配问题,受MatchPyramid(Pang,2016)的启发,我们采用了一种基于交互的方法,根据该方法,在给定一对输入文本的情况下构建匹配矩阵。然后将具有分层匹配模式属性的匹配矩阵馈送到卷积神经网络(CNN)中,以计算给定用户-项目对的匹配分数。我们在Amazon评论数据集的小数据类别上的实验表明,与DeepCoNN模型相比,我们提出的模型的相对改进从1.76%提高到21.72%,与TransNets模型相比,相对改进从0.83%提高到3.15%。此外,在两个大类别,即AZ-CSJ和AZ-Mov上,与DeepCoNN模型相比,我们的模型实现了8.08%和7.56%的相对改进,与TransNets模型相比,分别实现了1.74%和0.86%的相对改进。

英文摘要:

Users' reviews contain valuable information which are not taken into account in most recommender systems. According to the latest studies in this field, using review texts could not only improve the performance of recommendation, but it can also alleviate the impact of data sparsity and help to tackle the cold start problem. In this paper, we present a neural recommender model which recommends items by leveraging user reviews. In order to predict user rating for each item, our proposed model, named MatchPyramid Recommender System (MPRS), represents each user and item with their corresponding review texts. Thus, the problem of recommendation is viewed as a text matching problem such that the matching score obtained from matching user and item texts could be considered as a good representative of their joint extent of similarity. To solve the text matching problem, inspired by MatchPyramid (Pang, 2016), we employed an interaction-based approach according to which a matching matrix is constructed given a pair of input texts. The matching matrix, which has the property of hierarchical matching patterns, is then fed into a Convolutional Neural Network (CNN) to compute the matching score for the given user-item pair. Our experiments on the small data categories of Amazon review dataset show that our proposed model gains from 1.76% to 21.72% relative improvement compared to DeepCoNN model, and from 0.83% to 3.15% relative improvement compared to TransNets model. Also, on two large categories, namely AZ-CSJ and AZ-Mov, our model achieves relative improvements of 8.08% and 7.56% compared to the DeepCoNN model, and relative improvements of 1.74% and 0.86% compared to the TransNets model, respectively.

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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