Johannes Gehrke

Professor, Department of Computer Sciences 4105B Upson Hall Cornell University Ithaca, NY 14853 johannes [at] cs [dot] cornell [dot] edu Voice: 607-821-1685; fax: 607-255-4428 Short biography. Blog.

My research lies in the design and implementation of scalable data-driven systems. I currently work on three topics: Scalability in computer games and simulations, data privacy, and data mining. For more on my research, go to the homepage of the Cornell Big Red Data Group.

Selected Recent Publications  �/span>�/span>�/span>

• Marcos Antonio Vaz Salles, Tuan Cao, Benjamin Sowell, Alan J. Demers, Johannes Gehrke, Christoph Koch, Walker M. White: An Evaluation of Checkpoint Recovery for Massively Multiplayer Online Games. PVLDB 2(1): 1258-1269 (2009)
• Ashwin Machanavajjhala, Johannes Gehrke, Michaela G�z: Data Publishing against Realistic Adversaries. PVLDB 2(1): 790-801 (2009)
• Xiaokui Xiao, Guozhang Wang, Johannes Gehrke: Interactive anonymization of sensitive data. SIGMOD Conference 2009: 1051-1054
• Alan J. Demers, Johannes Gehrke, Christoph Koch, Ben Sowell, Walker M. White: Database research in computer games. SIGMOD Conference 2009: 1011-1014
• Ben Sowell, Alan J. Demers, Johannes Gehrke, Nitin Gupta, Haoyuan Li, Walker M. White: From Declarative Languages to Declarative Processing in Computer Games. CIDR 2009
• Walker White, Christoph Koch, Johannes Gehrke, and Alan Demers. Better Scripts, Better Games. ACM Queue, Vol. 6, No. 7, November/December 2008. Also in Communications of the ACM 52(3): 42-47, March 2009.
• Ben Sowell, Alan J. Demers, Johannes Gehrke, Nitin Gupta, Haoyuan Li, and Walker M. White: From Declarative Languages to Declarative Processing in Computer Games. CIDR 2009.
• W. White, B. Sowell, J. Gehrke, and A. Demers: Declarative Processing for Computer Games. In Proc. of the 2008 ACM SIGGRAPH Sandbox Symposium (Sandbox 2008).
• David Martin, Johannes Gehrke, and Joseph Halpern. Toward Expressive and Scalable Sponsored Search Auctions. ICDE Conference 2008. Cancun, Mexico, April 2008.
• Ashwin Machanavajjhala, Daniel Kifer, John Abowd, Johannes Gehrke, and Lars Vilhuber. Privacy: From Theory to Practice on the Map. ICDE Conference 2008. Cancun, Mexico, April 2008.
• Walker White, Christoph Koch, Nitin Gupta, Johannes Gehrke, and Alan Demers. Database Research Opportunities in Computer Games. SIGMOD Record, September 2007.
• Walker White, Alan Demers, Christoph Koch, Johannes Gehrke, and Rajmohan Rajagopalan. Scaling Games to Epic Proportions. SIGMOD Conference 2007: 31-42.

Full list of my publications (from DBLP).

Awards   

• New York State Foundation for Science, Technology, and Innovation. Faculty Development Grant, 2007. (Press release.)
• Cornell University Provost� Award for Distinguished Scholarship, 2004. (Cornell Chronicle article.)
• Alfred P. Sloan Research Fellowship, 2003. (Cornell Chronicle article.)
• National Science Foundation CAREER Award, 2002. (Cornell Chronicle article.)
• Cornell College of Engineering James and Mary Tien Excellence in Teaching Award, 2001.
• IBM Faculty Development Award 2000 and 2001.

Selected Professional Activities

• Adjunct Associate Professor, University of Troms� Norway.
• Chief Scientist, Fast Search and Transfer. (2007-2008)
• Program Chair:
• 33rd International Conference on Very Large Data Bases (VLDB 2007). Vienna, Austria, September 2007.
• Tenth ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD 2004). Seattle, WA, August 2004 (with Bill DuMouchel).
• Editorial Activities:
• Data Mining and Knowledge Discovery (Action Editor), Machine Learning Journal (Member of the Editorial Board), ACM Transactions on Knowledge Discovery from Data (TKDD) (Member of the Editorial Board), Foundations and Trends in Databases. Member of the Editorial Board, The VLDB Journal. Member of the Editorial Board.

Selected Talks

• Scaling Games to Epic Proportions. Computer Science Distinguished Lecture Series, Department of Computer Science, University of Illinois at Urbana-Champaign. Urbana, IL, October 2008.
• Declarative Processing for Computer Games. Distinguished Lecturer Series, Bren School of Information and Computer Sciences. Irvine, Ca, January 2009.
• Bringing Database Research to Computer Games and Simulations. Keynote at the 35th International Conference on Very Large Data Bases. Lyon, France. August 2009.

People

• Current PhD Students
• Tuan Cao, Gabriel Bender, Michaela G�/span>tz, Nitin Gupta, Yin Lou, Sudip Roy, Ben Sowell, Guozhang Wang, Tao Zou.
• Postdocs: Michael Hay, Lucja Kot, Marcos Vaz Salles
• Alumni:
• Philippe Bonnet (Research Associate, 1999-2001). First employment: Associate Professor, Department of Computer Science, University of Copenhagen.
• Zhiyuan Chen (Ph.D., August 2002; co-advised with Praveen Seshadri). First employment: Microsoft Research.
• Adina Crăiniceanu (Ph.D., December 2005). First employment: Assistant Professor, United States Naval Academy.
• Abhinandan Das (Ph.D., August 2005). First employment: Google.
• Alin Dobra (Ph.D., July 2003). First employment: Assistant Professor, Department of Computer and Information Science and Engineering, University of Florida.
• Alexandre Evfimievski (Ph.D., August 2004). First employment: IBM Almaden Research Center.
• Dan Kifer (Ph.D., August 2006 and postdoc September 2006 to August 2007). First employment: Yahoo! Research then Assistant Professor, Department of Computer Science and Engineering, Penn State University.
• Mingsheng Hong (Ph.D., November 2008). First employment: Vertica.
• Prakash Linga (Ph.D., June 2007, co-advised with Jayavel Shanmugasundaram). First employment: Moka5.
• Ashwin Machanavajjhala (Ph.D., August 2008). First employment: Yahoo! Research.
• David Martin (Ph.D., August 2008; co-advised with Joe Halpern). First employment: Google.
• Tobias Mayr (Ph.D., August 2001; co-advised with Praveen Seshadri). First employment: IBM Almaden Research Center.
• Mirek Riedewald (Research Associate, 2002-2008). First employment: Associate Professor, Department of Computer Science, Northeastern.
• Biswanath Panda (Ph.D., February 2009). First employment: Google.
• Niki Trigoni (postdoc, November 2002 to July 2004). First employment: Lecturer, School of Computer Science and Information Systems, Birkbeck, University of London.
• Felix Weigel (postdoc, January 2007 to February 2009). First employment: Nokia.
• Xiaokui Xiao (postdoc, August 2008 to July 2009). First employment: Assistant Professor, Division of Information Systems, Nanyang Technological University.
• Fan Yang (Ph.D., July 2008; co-advised with Jayavel Shanmugasundaram). First employment: Google.
• Yong Yao (Ph.D., January 2007). First employment: IBM Silicon Valley Lab.

Acknowledgments

My research is partially supported by the National Science Foundation under Grants IIS-0121175, IIS-0621438, and CNS-0627680, by AFOSR, by the New York Foundation for Science, Technology, and Innovation, and by Yahoo! and Microsoft. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the sponsors.

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