Knowledge Discovery Systems Lab
80 Stamford Road, Singapore 178902
Tel: +65-6828-0781
Fax: +65-6828-0919
Research
Our group focuses on mining structures and behaviors in social networks at various Web 2.0 sites, and applying the mine patterns in various search, annotation and recommendation applications.
People
Faculty Members/Collaborators
Research Staff
PhD Students
* Please contact Ee-Peng Lim if you are interested to join us as researchers or students.
Prototype Systems
This system addresses rating bias caused by raters. leniency (or strictness). Given a set of rating scores, their raters and rated objects, the system returns a quality score for each rated object derived from the rating scores on the object adjusted by the leniency (or strictness) of raters. Here, we define a more lenient rater to be one who gives higher ratings to the objects he/she rates compared with other co-raters of the objects. Conversely, a less lenient rater is one who gives lower ratings to the objects compared with other co-raters.
Datasets
Wikipedia Feature Article Nomination Dataset
This dataset is collected by Meiqun Hu and used for feature article nomination outcome prediction as reported in the paper below. Please read the paper and download the dataset as long as due acknowledgement and reference to the following paper are made.
Meiqun Hu, Ee-Peng Lim, Ramayya Krishnan, Predicting Outcome for Collaborative Featured Article Nomination in Wikipedia, 3rd International AAAI Conference on Weblogs and Social Media (ICWSM2009), San Jose, May 2009.
Projects and Publications
Rating Network Mining
(funded by A*Star, Singapore)
- Hady Wirawan Lauw, Ee-Peng Lim, Ke Wang: On Mining Rating Dependencies in Online Collaborative Rating Networks. Pacific Asia Conference on Knowledge Discovery and Data Mining (PAKDD2009), Bangkok, May 2009.
- Hady Wirawan Lauw, Ee-Peng Lim, Ke Wang: Bias and Controversy in Evaluation Systems. IEEE Trans. Knowl. Data Eng. 20(11): 1490-1504 (2008).
- Hady Wirawan Lauw, Ee-Peng Lim, A Multitude of Opinions: Mining Online Rating Data, National Science Foundation Symposium on Next Generation of Data Mining and Cyber-Enabled Discovery for Innovation (NGDM2007), Baltimore, October 2007.
- Hady Wirawan Lauw, Ee-Peng Lim, Ke Wang, Summarizing Reviews of Unequal Reviewers, (Poster Paper), SIAM Conference on Data Mining (SDM2007), Minneapolis, USA, April 2007.
- Hady Wirawan Lauw, Ee-Peng Lim, Ke Wang, Bias and Controversy: Beyond Statistical Deviation, (Poster Paper), ACM SIGKDD Conference (KDD2006), Philadelphia, USA, August 2006.
Trust Network Mining
(funded by National Research Foundation and A*Star, Singapore)
- Jianshu Weng, Ee-Peng Lim, Jing Jiang, and Qi He, TwitterRank: Finding Topic-sensitive Influential Twitterers. Third ACM International Conference on Web Search and Data Mining (WSDM 2010), New York City, February 2010.
Ee-Peng Lim, Viet-An Nguyen, Aixin Sun, Jing Jiang, and Hwee Hoon Tan, To Trust or Not to Trust? Predicting Online Trusts using Trust Antecedent Framework. IEEE International Conference on Data Mining (ICDM 2009), Miami, Florida, December 6-9, 2009
- Nan Ma, Ee-Peng Lim, Viet-An Nguyen, Aixin Sun, Haifeng Liu, Trust Relationship Prediction Using Online Product Review Data. ACM CIKM Workshop on Complex Networks in Information and Knowledge Management (CNIKM2009), Hong Kong, November 2009.
- Haifeng Liu, Ee-Peng Lim, Hady Wirawan Lauw, Minh-Tam Le, Aixin Sun, Jaideep Srivastava, Young-Ae Kim, Predicting Trusts among Users of Online Communities - An Epinions Case Study, ACM Conference on Electronic Commerce (EC2008), Chicago, July 2008.
- Young-Ae Kim, Hady W. Lauw, Ee-Peng Lim, Jaideep Srivastava, Building a Web of Trust without Explicit Trust Ratings, ICDE Workshop on Data Engineering for Blogs, Social Media, and Web 2.0, in conjunction of 24th International Conference on Data Engineering, Cancun, Mexico, April 2008.
Information Exchange Network Mining
(funded by Defense Science Organization, Singapore)
Collaborative Authorship Network Mining (funded by A*Star, Singapore)
- Meiqun Hu, Ee-Peng Lim, Ramayya Krishnan, Predicting Outcome for Collaborative Featured Article Nomination in Wikipedia, 3rd International AAAI Conference on Weblogs and Social Media (ICWSM2009), San Jose, May 2009.
- Minh-Tam Le, Hoang-Vu Dang, Ee-Peng Lim, Anwitaman Datta, WikiNetViz: Visualizing Friends and Adversaries in Implicit Social Networks, IEEE International Conference on Intelligence and Security Informatics (ISI 2008), Taipei, Taiwan, June 2008.
- Ba-Quy Vuong, Ee-Peng Lim, Aixin Sun, Minh-Tam Le, Hady Wirawan Lauw, Kuiyu Chang, On Ranking Controversies in Wikipedia: Models and Evaluation, First ACM International Conference on Web Search and Data Mining (WSDM 2008), Stanford, California, USA, February 2008.
- Meiqun Hu, Ee-Peng Lim, Aixin Sun, Hady Wirawan Lauw, Ba-Quy Vuong, On Improving Wikipedia Search using Article Quality, ACM Ninth International Workshop on Web Information and Data Management (WIDM 2007), Lisboa, Portugal, November 2007.
- Meiqun Hu, Ee-Peng Lim, Aixin Sun, Hady Wirawan Lauw, Ba-Quy Vuong, Measuring Qualities of Articles in Wikipedia, ACM Sixteenth Conference on Information and Knowledge Management (CIKM 2007), Lisboa, Portugal, November 2007.
- Ee-Peng Lim, Ba-Quy Vuong, Hady Wirawan Lauw, and Aixin Sun, Measuring Qualities of Articles Contributed by Online Communities, IEEE/WIC/ACM International Conference on Web Intelligence (WI2006), Hong Kong, December 2006.
Question Answer Network Mining
Miscellaneous
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Hady Wirawan Lauw, Ee-Peng Lim, Web Social Mining, Encyclopedia of Library and Information Science, Taylor & Francis Group, 2009
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