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arXiv 1902.09362cs.IR
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基于动态图注意力网络的会话社交推荐

Session-based Social Recommendation via Dynamic Graph Attention Networks

Weiping Song, Zhiping Xiao, Yifan Wang, Laurent Charlin, Ming Zhang, Jian Tang

摘要:

Facebook和Twitter等在线社区非常受欢迎,已成为许多用户日常生活的重要组成部分。通过这些平台,用户可以发现和创建其他人将使用的信息。在这方面,向用户推荐相关信息对于可行性至关重要。然而,在线社区中的推荐是一个具有挑战性的问题:1)用户的兴趣是动态的,2)用户受到他们的朋友的影响。此外,影响者可以是上下文相关的。也就是说,不同的朋友可以依赖于不同的主题。因此,对这两种信号进行建模对于建议至关重要。我们提出了一个基于动态图注意神经网络的在线社区推荐系统。我们使用递归神经网络对动态用户行为进行建模,并使用图形注意力神经网络对上下文相关的社会影响进行建模,该网络根据用户的当前兴趣动态推断影响者。整个模型可以有效地拟合大规模数据。几个真实世界的数据集上的实验结果表明,我们提出的方法在几个竞争性的基线,包括国家的最先进的模型的有效性。

英文摘要:

Online communities such as Facebook and Twitter are enormously popular and have become an essential part of the daily life of many of their users. Through these platforms, users can discover and create information that others will then consume. In that context, recommending relevant information to users becomes critical for viability. However, recommendation in online communities is a challenging problem: 1) users' interests are dynamic, and 2) users are influenced by their friends. Moreover, the influencers may be context-dependent. That is, different friends may be relied upon for different topics. Modeling both signals is therefore essential for recommendations. We propose a recommender system for online communities based on a dynamic-graph-attention neural network. We model dynamic user behaviors with a recurrent neural network, and context-dependent social influence with a graph-attention neural network, which dynamically infers the influencers based on users' current interests. The whole model can be efficiently fit on large-scale data. Experimental results on several real-world data sets demonstrate the effectiveness of our proposed approach over several competitive baselines including state-of-the-art models.

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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