arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1208.0787cs.IRcs.LG
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基于随机游走的社会信息推荐模型

A Random Walk Based Model Incorporating Social Information for Recommendations

Deutsche Telekom Laboratories(德国电信实验室);Princeton University(普林斯顿大学)

Shang Shang, Sanjeev R. Kulkarni, Paul W. Cuff, Pan Hui

摘要:

协同过滤(CF)是构建推荐系统最流行的方法之一。针对推荐系统中的数据稀疏性和冷启动问题,提出了一种基于马尔可夫随机游走的混合协同过滤模型。更准确地说,我们构建了一个有向图,其节点包括项目和用户,以及项目内容,用户简档和社交网络信息。我们将用户的评分纳入图模型的边缘设置。该模型为个人和团体提供个性化的建议和预测。在MovieLens和Eppery数据集上对所提出的算法进行了评估。实验结果表明,与其他基于图的方法相比,所提出的方法性能良好,特别是在冷启动的情况下。

英文摘要:

Collaborative filtering (CF) is one of the most popular approaches to build a recommendation system. In this paper, we propose a hybrid collaborative filtering model based on a Makovian random walk to address the data sparsity and cold start problems in recommendation systems. More precisely, we construct a directed graph whose nodes consist of items and users, together with item content, user profile and social network information. We incorporate user's ratings into edge settings in the graph model. The model provides personalized recommendations and predictions to individuals and groups. The proposed algorithms are evaluated on MovieLens and Epinions datasets. Experimental results show that the proposed methods perform well compared with other graph-based methods, especially in the cold start case.

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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