Emerging Ideas and Initiatives

We have so far conducted social network mining research on Wikipedia and online rating data. For Wikipedia, one of our research initiatives is to automatically determine the quality of articles by first determining the authority of their contributors. We have shown a mutual dependency between article quality and contributor authority, and developed a few article quality (and contributor authority) models based on this dependency. We are also conducting another research initiative on mining controversial users and articles in Wikipedia. Knowing these controversies early is expected to help article editing and quality control. For online rating data, we have developed models for determining leniency and bias of raters when they rate items, and relating them to the items' quality.

Selected Publications

[1] H. W. Lauw, E.-P. Lim, K. Wang. Bias and Controversy in Evaluation Systems. IEEE Transactions on Knowledge and Data Engineering (TKDE), 2008. To appear.

[2] M.-T. Le, H.-V. Dang, E.-P. Lim, A. Datta. WikiNetViz: Visualizing Friends and Adversaries in Implicit Social Networks. IEEE International Conference on Intelligence and Security Informatics (ISI2008), 2008.

[3] B.-Q. Vuong, E.-P. Lim, A. Sun, M.-T. Le, H.W. Lauw, K. Chang. On Ranking Controversies in Wikipedia: Models and Evaluation. 1st ACM International Conference on Web Search and Data Mining (WSDM2008), 2008.

[4] H. W. Lauw, E.-P. Lim, K. Wang. Summarizing Reviews of Unequal Reviewers. SIAM Conference on Data Mining (SDM2007)-Poster Paper, 2007.

[6] M. Hu, E.-P. Lim, A. Sun, H.W. Lauw, B.-Q. Vuong. Measuring Qualities of Articles in Wikipedia. ACM Conference on Information and Knowledge Management (CIKM 2007), 2007.

Projects, Presentations and Posters

1. Ee-Peng Lim, Behavior Mining in Wikipedia, keynote speaker at The Fourth Annual Conference on Collaboration Technologies, Wakayama, Japan, August 30-31, 2008.
2. Ee-Peng Lim, On Ranking Controversies in Wikipedia: Models and Evaluation, Presentation at The First ACM International Conference on Web Search and Data Mining (WSDM2008) Stanford, February 2008.