Tiancheng Li

Since July 2010, I work with the privacy team at Google Inc. I got my PhD degree from the Department of Computer Science at Purdue University in August 2010. More about me can be found here CV.

(July 2010) I start working at Google Inc. on July 7th.
(May 2010) I defended my dissertation titled "Privacy Preservation in Data Publishing and Sharing" [PDF].
(May 2010) Our privacy paper is accepted by VLDB 2010.
(December 2009) I received the Bilsland Dissertation Fellowship from the Graduate School of Purdue University.
(September 2009) I attended ESORICS 2009 and presented our wormseal paper in Saint Malo, France.
(September 2009) Our slicing paper is now available online.
(September 2009) Our outsourcing paper is accepted by ICDM 2009.
(August 2009) I spent the summer of 2009 in AT&T Labs - Research, working with Graham Cormode and Divesh Srivastava.
(June 2009) I attended SIGKDD 2009 and presented our privacy paper in Paris, France.
(April 2009) I attended ICDE 2009 and presented our privacy paper in Shanghai, China.

My research interests lie at the intersection of databases, data mining, security and privacy. My research focuses on the following topics:

Here is a detailed description of my research projects.

[Paper in PDF] Slicing: A New Approach to Privacy Preserving Data Publishing
Tiancheng Li, Ninghui Li, Jian Zhang, and Ian Molloy
In IEEE Transaction on Knowledge and Data Engineering (TKDE), 2010.

[Paper in PDF] Mining Roles with Multiple Objectives
Ian Molloy, Hong Chen, Tiancheng Li, Qihua Wang, Ninghui Li, Elisa Bertino, Seraphin Calo, and Jorge Lobo
In ACM Transactions on Information and System Security (TISSEC), 2010.

[Paper in PDF] Closeness: A New Privacy Measure for Data Publishing
Ninghui Li, Tiancheng Li, and Suresh Venkatasubramanian
In IEEE Transaction on Knowledge and Data Engineering (TKDE), 2009.

[Paper in PDF] Privacy Preserving Incremental Data Dissemination
Ji-Won Byun, Tiancheng Li, Elisa Bertino, Ninghui Li, and Yonglak Sohn
In Journal of Computer Security (JCS), 17:(1) 43-68, 2009.

[Paper in PDF] Towards Optimal k-Anonymization
Tiancheng Li and Ninghui Li
In Data & Knowledge Engineering Journal (DKE), 65:(1) 22-39, 2008.

[Paper in PDF] Minimizing Minimality and Maximizing Utility: Analyzing Method-based Attacks on Anonymized Data
Graham Cormode, Ninghui Li, Tiancheng Li, and Divesh Srivastava
In Proceedings of the International Conference on Very Large Data Bases (VLDB), Singapore, 2010.

[Paper in PDF] On the (In)Security and (Im)Practicality of Outsourcing Precise Association Rule Mining
Ian Molloy, Ninghui Li, and Tiancheng Li
In Proceedings of the IEEE International Conference on Data Mining (ICDM), Miami, Florida, 2009.

[Paper in PDF] Slicing: A New Approach to Privacy Preserving Data Publishing
Tiancheng Li, Ninghui Li, Jian Zhang, and Ian Molloy
In Preprints arXiv:0909.2290v1 [cs.DB], 2009.

[Paper in PDF] WORM-SEAL: Trustworthy Data Retention and Verification for Regulatory Compliance
Tiancheng Li, Xiaonan Ma, and Ninghui Li
In Proceedings of the European Symposium on Research in Computer Security (ESORICS), pp. 472-488, 2009.

[Paper in PDF] On the Tradeoff Between Privacy and Utility in Data Publishing
Tiancheng Li and Ninghui Li
In Proceedings of the ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (SIGKDD), pp. 517-526,2009.

[Paper in PDF] Evaluating Role Mining Algorithms
Ian Molloy, Ninghui Li, Tiancheng Li, Ziqing Mao, Qihua Wang, and Jorge Lobo
In Proceedings of the ACM Symposium on Access Control Models and Technologies (SACMAT), pp. 95-104, 2009.

[Paper in PDF] Modeling and Integrating Background Knowledge in Data Anonymization
Tiancheng Li, Ninghui Li, and Jian Zhang
In Proceedings of the IEEE International Conference on Data Engineering (ICDE), pp. 6-17, 2009.

[Paper in PDF] Block Size Optimization in Deduplication Systems
Cornel Constantinescu, Jan Pieper, and Tiancheng Li
In Proceedings of the Data Compression Conference (DCC), pp. 442, 2009.

[Paper in PDF] Mining Roles with Semantic Meanings
Ian Molloy, Hong Chen, Tiancheng Li, Qihua Wang, Ninghui Li, Elisa Bertino, Seraphin Carlo, and Jorge Lobo
In Proceedings of the ACM Symposium on Access Control Models and Technologies (SACMAT), pp. 21-30, 2008.

[Paper in PDF] Injector: Mining Background Knowledge for Data Anonymization
Tiancheng Li and Ninghui Li
In Proceedings of the IEEE International Conference on Data Engineering (ICDE), pp. 446-455, 2008.

[Paper in PDF] t-Closeness: Privacy Beyond k-Anonymity and l-Diversity
Ninghui Li, Tiancheng Li, and Suresh Venkatasubramanian
In Proceedings of the IEEE International Conference on Data Engineering (ICDE), pp. 106-115, 2007.

[Paper in PDF] Optimal k-Anonymity with Flexible Generalization Schemes through Bottom-Up Searching
Tiancheng Li and Ninghui Li
In Proceedings of the IEEE International Workshop on Privacy Aspect of Data Mining (PADM), in conjunction with ICDM, pp. 518-523, 2006.

PC member: ACM International Workshop on Security and Privacy in GIS and LBS (SPRINGL 2009, SPRINGL 2010)
Journal reviewer: TODS (2008), VLDB Journal (2009), TKDE (2008,2009), TKDD (2009)
External reviewer: SIGMOD (2007, 2008), VLDB (2008, 2009), ICDE (2008)
External reviewer: S&P (2007, 2008), CCS (2006, 2009), WWW (2009)

Tiancheng Li
1600 Amphitheatre Pkwy
Google Inc.
Mountain View, CA 94043

Email: tiancheng@google.com
Phone: (765)586-7289

Subpages (1): Projects