SocialTrans: A Deep Sequential Model with Social Information for Web-Scale Recommendation Systems

• URL: http://arxiv.org/abs/2005.04361v1
• Date: Sat, 9 May 2020 03:39:45 GMT
• Title: SocialTrans: A Deep Sequential Model with Social Information for Web-Scale Recommendation Systems
• Authors: Qiaoan Chen, Hao Gu, Lingling Yi, Yishi Lin, Peng He, Chuan Chen, Yangqiu Song
• Abstract summary: We present a novel deep learning model SocialTrans for social recommendations. The first module is based on a multi-layer Transformer to model users' personal preference. The second module is a multi-layer graph attention neural network (GAT), which is used to model the social influence strengths between friends in social networks. The last module merges users' personal preference and socially influenced preference to produce recommendations.
• Score: 29.24459965940855
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: On social network platforms, a user's behavior is based on his/her personal interests, or influenced by his/her friends. In the literature, it is common to model either users' personal preference or their socially influenced preference. In this paper, we present a novel deep learning model SocialTrans for social recommendations to integrate these two types of preferences. SocialTrans is composed of three modules. The first module is based on a multi-layer Transformer to model users' personal preference. The second module is a multi-layer graph attention neural network (GAT), which is used to model the social influence strengths between friends in social networks. The last module merges users' personal preference and socially influenced preference to produce recommendations. Our model can efficiently fit large-scale data and we deployed SocialTrans to a major article recommendation system in China. Experiments on three data sets verify the effectiveness of our model and show that it outperforms state-of-the-art social recommendation methods.

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