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Conference & Workshop Organization
- Program and Local Co-chair, 8th International Conference on Spatial Information Theory, 2007, Melbourne, Australia
- Program Co-Chair, International Workshop on Distributed Geoinformatics and Sensing, Ubiquity, and Mobility at the 8th International Conference on Spatial Information Theory (COSIT), 2007, Melbourne, Australia
- Local Arrangement Co-Chair, ACM Middleware, 2006, Melbourne, Australia
- Program Co-Chair, Workshop on Mobile Location-Aware Sensor Networks, at the 7th International Conference on Mobile Data Management, 2006, Nara, Japan
- Organizing committee member, EII Workshop on Wireless Sensor Networks, 2006, Sydney, Australia
Refereeing for International Journals
- ACM Transactions on Database Systems
- GeoInformatica
- IEEE Transactions on Dependable and Secure Computing
- IEEE Transactions on Knowledge and Data Engineering
- IEEE Transactions on Intelligent Transportation Systems
- IEEE Transactions on Parallel and Distributed Systems
- International Journal of Geographical Information Science
- Journal of Location Based Services
- Personal and Ubiquitous Computing
- Spatial Cognition & Computation
Program Committees
- COSIT’09: 9th International Conference on Spatial Information Theory, 2009, Aber Wrac’h, France
- GSN 2009: 3rd International Conference on Geosensor Networks, Oxford, UK
- AGILE 2009: 12th AGILE International Conference on Geographic Information Science, Hannover, Germany
- PALMS’09: 3rd International Workshop on Privacy-Aware Location-based Mobile Services at the 10th International Conference on Mobile Data Management (MDM’09)
- GEOWS 2009: The International Conference on Advanced Geographic Information Systems & Web Services, 2009, Cancun, Mexico
- QPMHPC 2008: International Workshop on QoS and Performance Metrics in High Performance Computing at the 10th IEEE International Conference on High Performance Computing and Communications (HPCC-08), DaLian, China
- DMCAC 2008: International Workshop on Data Management in Context Aware Computing at the 9th International Conference on Mobile Data Management, 2008, Beijing, China
- GeoInformatics Days, 2008, Münster, Germany
- AGILE 2008: 11th AGILE International Conference on Geographic Information Science, 2008, Girona, Spain
- PALMS’07: 1st International Workshop on Privacy-Aware Location-based Mobile Services at the 8th International Conference on Mobile Data Management, 2007, Mannheim, Germany
- AISB Symposium: Spatial Reasoning and Communication at the Artificial and Ambient Intelligence, 2007, Newcastle upon Tyne, UK
- Workshop: Applications of Spatial Cognition for Intelligent Assistance Systems at the 30th International German Conference on Artificial Intelligence, 2007, Osnabrück, Germany
- WMIS: International Workshop on Mobile Information Systems at the 18th International Conference on Database and Expert Systems Applications, 2007, Regensburg, Germany
- GeoInformatics Days, 2007, Münster, Germany
- AGILE 2007: 10th International Conference on Geographic Information Science, AGILE, 2007, Aalborg, Denmark
- 14th International Symposium on Advances in Geographic Information Systems, 2006, Arlington, VA, USA
- 4th International Conference on Geographic Information Science, 2006, Münster, Germany
- 2nd International Conference on Geosensor Networks, 2006, Boston, MA, USA
- 29th International German Conference on Artificial Intelligence, 2006, Bremen, Germany
- 5th International Conference Spatial Cognition, 2006, Bremen, Germany
- COSIT’05: 7th International Conference on Spatial Information Theory, 2005, Ellicottville, NY, USA
- GeoInformatcs Days: Sensors and Geographic Networks, 2005, Münster, Germany
- 4th International Conference Spatial Cognition, 2004, Lake Chiemsee, Germany
- GeoInformatics Days, 2004, Münster, Germany