A semantic imitation model of social tag choices

Wai Tat Fu, Thomas George Kannampallil, Ruogu Kang

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

33 Scopus citations

Abstract

We describe a semantic imitation model of social tagging that integrates formal representations of semantics and a stochastic tag choice process to explain and predict emergent behavioral patterns. The model adopts a probabilistic topic model to separately represent external word-topic and internal word-concept relations. These representations are coupled with a tag-based topic inference process that predicts how existing tags may influence the semantic interpretation of a document. The inferred topics influence the choice of tags assigned to a document through a random utility model of tag choices. We show that the model is successful in explaining the stability in tag proportions across time and power-law frequency-rank distributions of tag co-occurrences for semantically general and narrow tags. The model also generates novel predictions on how emergent behavioral patterns may change when users with different domain expertise interact with a social tagging system. The model demonstrates the weaknesses of single-level analyses and highlights the importance of adopting a multi-level modeling approach to explain online social behavior.

Original languageEnglish
Title of host publicationProceedings - 12th IEEE International Conference on Computational Science and Engineering, CSE 2009 - 2009 IEEE International Conference on Social Computing, SocialCom 2009
Pages66-73
Number of pages8
DOIs
StatePublished - Dec 4 2009
Externally publishedYes
Event2009 IEEE International Conference on Social Computing, SocialCom 2009 - Vancouver, BC, Canada
Duration: Aug 29 2009Aug 31 2009

Publication series

NameProceedings - 12th IEEE International Conference on Computational Science and Engineering, CSE 2009
Volume4

Conference

Conference2009 IEEE International Conference on Social Computing, SocialCom 2009
CountryCanada
CityVancouver, BC
Period08/29/0908/31/09

Keywords

  • Computational cognitive model
  • Multi-level social behavior modeling
  • Semantic imitation
  • Social tagging

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    Fu, W. T., Kannampallil, T. G., & Kang, R. (2009). A semantic imitation model of social tag choices. In Proceedings - 12th IEEE International Conference on Computational Science and Engineering, CSE 2009 - 2009 IEEE International Conference on Social Computing, SocialCom 2009 (pp. 66-73). [5283882] (Proceedings - 12th IEEE International Conference on Computational Science and Engineering, CSE 2009; Vol. 4). https://doi.org/10.1109/CSE.2009.382