• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

Computer Engineering & Science

Previous Articles     Next Articles

Service recommendation based on
heterogeneous user network embedding

WU Hao1,WANG Xiaochen1,ZENG Cheng1,2,HE Peng1,2
 
  

  1. (1.School of Computer and Information Engineering,Hubei University,Wuhan 430072;
    2.Hubei Engineering Research Center of Education Informationization,Wuhan 430072,China)

     
  • Received:2018-09-27 Revised:2018-12-10 Online:2019-07-25 Published:2019-07-25

Abstract:

In order to make full use of user’s tagging and social relationship information and improve the accuracy of recommendation results in service recommendation, we propose a new recommendation method based on heterogeneous user network embedding. It maps a user node to a lowdimensional vector, and then utilizes the obtained user vector to carry out collaborative recommendation. We verify the method on Delicious, a public dataset. Experimental results show that our method outperforms the two existing methods, and the recommended accuracy is increased by 18.1% and 16.6% respectively. Furthermore, the results also suggest that the direct relationship between nodes is as important as the "friends of friends" relationship in representing user node structural information when learning the user representation vector. At the same time, it is most suitable to return top 25 similar users for the target user in the recommendation process.

 

Key words: network embedding, heterogeneous information network, collaborative filtering, service recommendation