arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.08976cs.IRcs.AIcs.SI
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用于社会推荐的双边深度上下文感知调制

Dual Side Deep Context-aware Modulation for Social Recommendation

Nanjing University(南京大学);Hong Kong University of Science and Technology(香港科技大学)

Bairan Fu, Wenming Zhang, Guangneng Hu, Xinyu Dai, Shujian Huang, Jiajun Chen

摘要:

社会化推荐通过利用在线社交网络平台的社会关系来有效地提高推荐性能。用户之间的社会关系提供用于对用户对候选项目的兴趣进行建模的朋友信息并且帮助项目暴露给潜在消费者(即,项目吸引力)。然而,有两个问题没有得到很好的研究:第一,为了用户的利益,现有的方法通常聚集的朋友的信息上下文的候选项目,这种浅的上下文感知聚合使他们遭受有限的朋友的信息。其次,对于物品吸引力,如果物品的过去消费者是目标用户的朋友或与目标用户具有相似的消费习惯,则物品可能对目标用户更具吸引力,但大多数现有方法忽略了关系增强上下文感知的物品吸引力。为了解决上述问题,我们提出了DICER(Dual Side Deep Context-aware Modulation for SocialRecommendation)。具体而言,首先提出了一种新的图神经网络来建模社交关系和协作关系,并在高阶关系之上引入双边深度上下文感知调制来捕获好友信息和项目吸引力。在两个真实数据集上的实验结果表明了该模型的有效性,并进行了进一步的实验,以帮助理解双重上下文感知调制的工作原理。

英文摘要:

Social recommendation is effective in improving the recommendation performance by leveraging social relations from online social networking platforms. Social relations among users provide friends' information for modeling users' interest in candidate items and help items expose to potential consumers (i.e., item attraction). However, there are two issues haven't been well-studied: Firstly, for the user interests, existing methods typically aggregate friends' information contextualized on the candidate item only, and this shallow context-aware aggregation makes them suffer from the limited friends' information. Secondly, for the item attraction, if the item's past consumers are the friends of or have a similar consumption habit to the targeted user, the item may be more attractive to the targeted user, but most existing methods neglect the relation enhanced context-aware item attraction. To address the above issues, we proposed DICER (Dual Side Deep Context-aware Modulation for SocialRecommendation). Specifically, we first proposed a novel graph neural network to model the social relation and collaborative relation, and on top of high-order relations, a dual side deep context-aware modulation is introduced to capture the friends' information and item attraction. Empirical results on two real-world datasets show the effectiveness of the proposed model and further experiments are conducted to help understand how the dual context-aware modulation works.

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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