关键词: 文本信息, 兴趣, 社会关系强度, 社交网络

Abstract: In social networks services, text information based on subjects can reflect users’ certain interest on the subjects. By analyzing the common interests between users, users’ social strength can be inferred, and it can be used to friend recommending and advertisement pushing. This paper introduces two independent ways: diversity and weighted frequency, to infer social strength between users. The parameters of the models are learned from the Katz score of dataset. The results of experiment show that this model can accurately infer the social strength between users.

Key words: text information, interest, social strength, social network service