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arXiv 2105.04067cs.IRcs.AI
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基于神经图匹配的协同过滤

Neural Graph Matching based Collaborative Filtering

University of Melbourne(墨尔本大学)

Yixin Su, Rui Zhang, Sarah Erfani, Junhao Gan

摘要:

用户和项目属性是基本的辅助信息;它们的交互(即,它们在样本数据中的共同出现)可以显著地提高各种推荐系统中的预测准确性。我们确定了两种不同类型的属性交互,内部交互和交叉交互:内部交互是指仅用户属性之间的交互或仅项目属性之间的交互;交叉交互是指用户属性和项目属性之间的交互。现有的模型没有区分这两种类型的属性交互,这可能不是利用交互所携带的信息的最有效的方式。为了解决这个问题,我们提出了一个基于神经图匹配的协同过滤模型(GMCF),它有效地捕捉这两种类型的属性的相互作用,通过建模和聚合属性的相互作用在一个图匹配结构的推荐。在我们的模型中,两个基本的推荐过程,特征学习和偏好匹配,明确地通过图学习(基于内部交互)和节点匹配(基于交叉交互),分别进行。实验结果表明,我们的模型优于国家的最先进的模型。进一步的研究验证了GMCF在提高推荐准确率方面的有效性。

英文摘要:

User and item attributes are essential side-information; their interactions (i.e., their co-occurrence in the sample data) can significantly enhance prediction accuracy in various recommender systems. We identify two different types of attribute interactions, inner interactions and cross interactions: inner interactions are those between only user attributes or those between only item attributes; cross interactions are those between user attributes and item attributes. Existing models do not distinguish these two types of attribute interactions, which may not be the most effective way to exploit the information carried by the interactions. To address this drawback, we propose a neural Graph Matching based Collaborative Filtering model (GMCF), which effectively captures the two types of attribute interactions through modeling and aggregating attribute interactions in a graph matching structure for recommendation. In our model, the two essential recommendation procedures, characteristic learning and preference matching, are explicitly conducted through graph learning (based on inner interactions) and node matching (based on cross interactions), respectively. Experimental results show that our model outperforms state-of-the-art models. Further studies verify the effectiveness of GMCF in improving the accuracy of recommendation.

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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