An event-driven SIR model for topic diffusion in web forums

Jiyoung Woo, Hsinchun Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

Social media is being increasingly used as a communication channel. Among social media, web forums, where people in online communities disseminate and receive information by interaction, provide a good environment to examine information diffusion. In this research, we aim to understand the mechanisms and properties of the information diffusion in the web forum. For that, we model topic-level information diffusion in web forums using the baseline epidemic model, the SIR(Susceptible, Infective, and Recovered) model, frequently used in previous research to analyze disease outbreaks and knowledge diffusion. In addition, we propose an event-driven SIR model that reflects the event effect on information diffusion in the web forum. The proposed model incorporates the effect of news postings on the web forum. We evaluate two models using a large longitudinal dataset from the web forum of a major company. The event-SIR model outperforms the SIR model in fitting on major spikey topics that have peaks of author participation.

Original languageEnglish (US)
Title of host publicationISI 2012 - 2012 IEEE International Conference on Intelligence and Security Informatics
Subtitle of host publicationCyberspace, Border, and Immigration Securities
Pages108-113
Number of pages6
DOIs
StatePublished - Oct 17 2012
Event2012 10th IEEE International Conference on Intelligence and Security Informatics, ISI 2012 - Washington, DC, United States
Duration: Jun 11 2012Jun 14 2012

Publication series

NameISI 2012 - 2012 IEEE International Conference on Intelligence and Security Informatics: Cyberspace, Border, and Immigration Securities

Other

Other2012 10th IEEE International Conference on Intelligence and Security Informatics, ISI 2012
CountryUnited States
CityWashington, DC
Period6/11/126/14/12

Keywords

  • epidemic model
  • information diffusion
  • web forum

ASJC Scopus subject areas

  • Artificial Intelligence
  • Information Systems

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  • Cite this

    Woo, J., & Chen, H. (2012). An event-driven SIR model for topic diffusion in web forums. In ISI 2012 - 2012 IEEE International Conference on Intelligence and Security Informatics: Cyberspace, Border, and Immigration Securities (pp. 108-113). [6284101] (ISI 2012 - 2012 IEEE International Conference on Intelligence and Security Informatics: Cyberspace, Border, and Immigration Securities). https://doi.org/10.1109/ISI.2012.6284101