On joint modeling of Topical Communities and Personal Interest in microblogs

• Main Authors: HOANG, Tuan-Anh, LIM, Ee Peng
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2014
• Subjects: Social media; Microblogs; Topic modeling; User modeling; Databases and Information Systems; Social Media
• Online Access: https://ink.library.smu.edu.sg/sis_research/2619; https://ink.library.smu.edu.sg/context/sis_research/article/3619/viewcontent/C122___On_Joint_Modeling_of_Topical_Communities_and_Personal_Interest_in_Microblogs__SocInfo14_.pdf
• Institution: Singapore Management University

In this paper, we propose the Topical Communities and Personal Interest (TCPI) model for simultaneously modeling topics, topical communities, and users’ topical interests in microblogging data. TCPI considers different topical communities while differentiating users’ personal topical interests from those of topical communities, and learning the dependence of each user on the affiliated communities to generate content. This makes TCPI different from existing models that either do not consider the existence of multiple topical communities, or do not differentiate between personal and community’s topical interests. Our experiments on two Twitter datasets show that TCPI can effectively mine the representative topics for each topical community. We also demonstrate that TCPI significantly outperforms other state-of-the-art topic models in the modeling tweet generation task.