VLDB 2010, Singapore.
DBRank 2010.
FoIKS 2010: 6th International Symposium on Foundations of Information and Knowledge Systems. Sofia, Bulgaria, February 15 - 19, 2010.
DBPL 2009: 12th International Symposium on Database Programming Languages. Lyon, France, August 23-24, 2009.
TIME 2009: 16th International Symposium on Temporal Representation and Reasoning. Brixen-Bressanone, Italy, July 23-25, 2009.
DBRank 2009: 3rd International Workshop on Ranking in Databases. In conjunction with ICDE 2009, Shanghai.
The Alberto Mendelzon Workshop on Foundations of Data Management. Arequipa, Peru, May 12-15, 2009.
PersDB 2008: 1st International Workshop on Personalized Access, Profile Management, and Context Awareness in Databases. Auckland, New Zealand, August 24-30, 2008.
Session on Preferences, Nonmonotonic Reasoning Workshop, Sydney, Australia, September 13-15, 2008.
Co-chair, M-PREF: 4th Multidisciplinary Workshop on Advances in Preference Handling. Chicago, Illinois, July 13-14, 2008.
DBRank'08: 2nd International Workshop on Ranking in Databases, Cancun, Mexico, April 11-12, 2008.
EDBT 2008, Nantes, France, March 25-30, 2008.
PODS 2008, Vancouver, Canada.
ISWC+ASWC'07: 6th International Semantic Web Conference/2nd Asian Semantic Web Conference, Pusan , Korea, November 11-15, 2007.
M-PREF: 3rd Multidisciplinary Workshop on Advances in Preference Handling. Vienna, Austria, September 23 or 24, 2007 (in conjunction with VLDB'07).
SUM 2007: International Conference on Scalable Uncertainty Management, Washington, D.C. area, October 10-12, 2007.
VLDB 2007, Vienna, Austria, September 23-28, 2007.
DBRank'07: First International Workshop on Ranking in Databases, Istanbul, Turkey, April 16, 2007.
ICDE 2007: 23rd International Conference on Data Engineering, Istanbul, Turkey, April 17-20, 2007.
Multidisciplinary Workshop on Advances in Preference Handling. Riva Del Garda, Italy, August 28-29, 2006.
4th IFIP International Conference on Theoretical Computer Science , Santiago, Chile, August 22-24, 2006.
TIME 2006: 13th International Symposium on Temporal Representation and Reasoning, Budapest, Hungary, June 15-17, 2006.
FQAS 2006: 8th International Symposium on Flexible Query Answering Systems, Milano, Italy, June 7-10, 2006.
IEEE Workshop on Electronic Chronicles, Atlanta, Georgia, April 7 2006.
Co-Chair, EDBT'06 Workshop on Inconsistency and Incompleteness in Databases. Munich, Germany, March 26, 2006.
Multidisciplinary Workshop on Advances in Preference Handling. Edinburgh, Scotland, July 30 - August 1, 2005.
PODS'2005. Baltimore, Md., June 13-15, 2005.
Program Co-chair, TIME 2005: 12th International Symposium on Temporal Representation and Reasoning, Burlington, Vermont, June 23-25, 2005.
VLDB'04 Workshop on Spatio-Temporal Data Management, Toronto, Canada, August 30, 2004.
SIGMOD'2004. Paris, France, June 13-18, 2004.
CDB'04: International Symposium on Applications of Constraint Databases. Paris, France, June 12-13, 2004.
POLICY'2004: IEEE 5th International Workshop on Policies for Distributed Systems and Networks, Yorktown Heights, NY, June 7-9, 2004.