Second Terra Cognita Workshop (in association with the 8th International Semantic Web Conference, ISWC '09), Washington, DC, October 2008. Program Committee member.
Terra Cognita Workshop (in association with the 7th International Semantic Web Conference, ISWC '08, Karlruhe, Germany, October 2008). Program Committee member.
International Conference on Information and Knowledge Management (CIKM), Napa, California, October 2008. Program Committee member.
International Conference on Visual Information Systems (VISUAL08), Salerno, Italy, September 11-12, 2008. Program Committee member.
International Conference on Geographic Information Science (GIScience), Park City, Utah, September 2008. Program Committee member.
Second International Workshop on Semantic Web Architectures For Enterprises (SWAE), Turin, Italy, September 2008. Program Committee member.
6th International Workshop on Databases, Information Systems and Peer-to-Peer Computing (DBISP2P) (in conjunction with VLDB), Auckland, New Zealand, August 2008. Program Committee member.
Workshop on Semantic Metadata Management and Applications (SeMMA) (in association with the European Semantic Web Conference, ESWC), Tenerife, Spain, June 2008. Program Committee member.
5th International Workshop on Databases, Information Systems and Peer-to-Peer Computing (DBISP2P) (in conjunction with VLDB), Vienna, Austria, September 2007. Program Committee member.
Social Semantic Desktops track of the ISemantics Conference (in conjunction with the IMedia and IKnow Conference), Graz, Austria, September 2007. Program Committee member.
International Workshop on Databases and Semantic Web, in cooperation with the 33rd International Conference on Very Large Databases (VLDB), Vienna, Austria, September 2007. Program Committee member.
First International Workshop on Semantic Web Architectures For Enterprises (SWAE), Regensburg, Germany, September, 2007. Program Committee member.
First International Workshop on Semantic-enhanced Multimedia Presentation Systems (SEMPS) (in conjunction with First International Conference on Semantics and Digital Media Technology (SAMT)), Athens, Greece, December 2006. Program Committee member.
ACM International Symposium on Advances in Geographic Information Systems (ACM GIS), Arlington, Virginia, November 2006. Program Committee member.
Semantic Desktop and Social Semantic Collaboration Workshop (in conjunction with ISWC), Athens, Georgia, November 2006. Program Committee member.
2nd International Conference on Geosensor Networks (GSN), Boston, Massachusetts, October 2006. Program Committee member.
Third International Workshop on Data Management for Sensor Networks (DMSN) (in conjunction with VLDB), Seoul, Korea, September 2006.
First Asian Semantic Web Conference (ASWC), Beijing, China, September 2006. Program Committee member.
IEEE Symposium on Visual Languages and Human-Centric Computing (VL/HCC), Brighton, UK, September 2006. Program Committee member.
4th International Conference on Geographic Information Science (GIScience), Muenster, Germany, September 2006. Program Committee member.
3rd Annual European Semantic Web Conference (ESWC), Budva, Montenegro, June 2006. Program Committee member.
Second International Conference on Knowledge Engineering and Decision Support (ICKEDS), Lisbon, Portugal, May 2006. Program Committee member, invited keynote speaker.
11th International Conference on Database Systems for Advanced Applications (DASFAA), Singapore, April 2006. Program Committee member.