PhD (University of Tennessee)
Office: School of IT, J12. Room 4W-424.
Phone: +61 2 9351 3516
My interests straddle data mining, machine learning and spatial data management. I also enjoy discussing philosophical issues related to data mining. My current emphasis is on problems such as :
- Anomaly detection in high dimensional space.
- Classification for imbalanced data.
- Learning in adversarial environments.
Best Paper Awards
- An Efficient Adversarial Learning Strategy for Constructing Robust Classification Boundaries:
Australasian Joint Conference on Artificial Intelligence 2012
- On Mining Anomalous Patterns in Road Traffic Streams. ADMA (2) 2011:237 -251
- Finding Local Anomalies in Very High Dimensional Space. IEEE ICDM 2010:128-137
- Spatio-temporal Outlier Detection in Precipitation Data. KDD Workshop on Knowledge Discovery from Sensor Data 2008:115-133
- Mining for Outliers in Sequential Databases. SIAM International Conference on Data Mining, 2006.
Some Recent Publications
- Lionel Ott, Linsey Pang, Fabio Ramos and Sanjay Chawla: On Integrated Clustering and Outlier Detection (NIPS 2014)
- Tara Babaie, Sanjay Chawla and Romesh Abeysuriya: Sleep Analytics and Online Selective Anomaly Detection (ACM SIGKDD 2014)
- Didi Surian, Sanjay Chawla: Mining Outlier Participants: Insights Using Directional Distributions in Latent Models: ECML-PKDD 2013)
- Aditya Menon, Harikrishna Narasimhan, Shivani Agarwal and Sanjay Chawla: On the Statistical Consistency of Algorithms for Binary Classification under Class Imbalance. (ICML, 2013) [PDF].
- Sanjay Chawla, Aris Gionis: k-means--:A Unified Approach to Clustering and Outlier Detection. (To appear in SDM 2013)[PDF]
- Sanjay Chawla, Yu Zheng, Jiafeng Hu: Inferring the Root Cause in Road Traffic Anomalies. IEEE ICDM 2012: 141-150
- Timothy de Vries, Hui Ke, Sanjay Chawla and Peter Christen: Robust Record Linkage Blocking using Suffix Arrays and Bloom Filters. ACM Transactions on Knowledge Discovery from Data (TKDD). Volume 5, Number 2, February 2011. DOI 10.1145/1921632.1921635 [PDF] [BibTeX]
- Timothy de Vries, Sanjay Chawla and Michael Houle: Density-preserving Projections for Large-scale Local Anomaly Detection. Knowledge and Information Systems. DOI 10.1007/s10115-011-0430-4 [PDF]
- Timothy de Vries, Sanjay Chawla and Michael Houle: Finding Local Anomalies in Very High Dimensional Space. In Proceedings of the 10th IEEE International Conference on Data Mining (ICDM), Sydney, December 2010. ( Best Research Paper Award) [PDF]
- Wei Liu and Sanjay Chawla: Mining Adversarial Patterns via Regularized Loss Minimization. Machine Learning (Special issue for ECML PKDD 2010). Volume 81, Issue 1, Pages 69-83. (Top Seven Papers at ECML) [PDF]
Note: From Sept 2014- June 30th 2015, I am on leave as a Principal Scientist to Qatar Computing Research Institute.