Conference Paper

Modeling User Intrinsic Characteristic on Social Media for Identity Linkage

Fulltext URI

Document type

Text/Conference Paper

Additional Information



Journal Title

Journal ISSN

Volume Title


Association for Computing Machinery


Most users on social media have intrinsic characteristics, such as interests and political views, that can be exploited to identify and track them. It raises privacy and identity issues in online communities. In this paper we investigate the problem of user identity linkage on two behavior datasets collected from different experiments. Specifically, we focus on user linkage based on users' interaction behaviors with respect to content topics. We propose an embedding method to model a topic as a vector in a latent space so as to interpret its deep semantics. Then a user is modeled as a vector based on his or her interactions with topics. The embedding representations of topics are learned by optimizing the joint-objective: the compatibility between topics with similar semantics, the discriminative abilities of topics to distinguish identities, and the consistency of the same user's characteristics fromtwo datasets. The effectiveness of our method is verified on real-life datasets and the results show that it outperforms related methods.


Yu, Xianqi; Sun, Yuqing; Bertino, Elisa; Li, Xin (2018): Modeling User Intrinsic Characteristic on Social Media for Identity Linkage. Proceedings of the 2018 ACM International Conference on Supporting Group Work. DOI: 10.1145/3148330.3148340. Association for Computing Machinery. pp. 39–50. Sanibel Island, Florida, USA