Conference Chair/co-Chair

1. ✦    11th Annual International Conference on Digital Government Research, May 2010, Puebla, Mexico (PC chair).
   

2. ✦    IEEE ICDM Workshop on Spatial and Spatiotemporal Data Mining (SSTDM’09), December 2009, Miami, FL.
   

3. ✦    NSF Workshop on GeoSpatial and GeoTemporal Informatics, January 2009, Washington, DC.
   

4. ✦    IEEE ICDM Workshop on Spatial and Spatiotemporal Data Mining (SSTDM’08), December 2008, Pisa, Italy.
   

5. ✦    Distributed Geoinformatics and Sensing, Ubiquity, and Mobility, September 2007, Melbourne, Australia.
   

6. ✦    NSF Information and Data Management PI Workshop, October 2004, Boston, MA.
   

7. ✦    Next Generation Geospatial Information, October 2003, Boston, MA.
   

8. ✦    National Conference on Digital Government Research, May 2003, Boston, MA.
   

9. ✦    Integrated Sensor Calibration and Orientation, June 1999, Portland, ME.
   

10. ✦    Integrated Spatial Databases: Digital Images and GIS, June 1999, Portland, ME.
    

International Working Group Leadership

1. ✦    Co-Chair, Working Group IV/2 (“Automatic Geospatial Data Acquisition and Image-Based Databases”) of Commission IV (“GeoDatabases and Digital Mapping”) of the International Society for Photogrammetry & Remote Sensing (2008-2012).
   

2. ✦    Chair, Working Group IV/2 (“Image-Based Geospatial Information Management”) of Commission IV (“GeoDatabases and Digital Mapping”) of the International Society for Photogrammetry & Remote Sensing (2004-2008).
   

3. ✦    Chair, Working Group IV/5 (“Image-Based Geospatial Databases”) of Commission IV (“Spatial Information Systems and Digital Mapping”) of the International Society for Photogrammetry & Remote Sensing (2000-2004).
   

4. ✦    Chair, Working Group III/1 (“Integrated Sensor Calibration and Orientation”) of Commission III (“Theory and Algorithms”) of the International Society for Photogrammetry & Remote Sensing (1996-2000).
   

National and International Board Memberships

1. ✦    Member, Board of Directors, US Geospatial Intelligence Foundation (2010-2013)
   

2. ✦    Member, URISA Journal Article Review Board (2004 - today)
   

3. ✦    Member, Committee of Visitors, National Science Foundation CAREER Program (appointed in 2001).
   

4. ✦    Member, Joint EU/US Delegation on e-Government Research (2004)
   

5. ✦    Member, Research Areas and Directions Review Committee, National Science Foundation’s Computer and Information Science & Engineering Directorate (2005)
   

6. ✦    Member, Canada Research Chairs College of Reviewers (invited to join in 2005).
   

7. ✦    Chair, Student Support Committee, Digital Government Society of North America (2006 - 2008).
   

8. ✦    Member, Advisory Committee, Digital Government Society of North America (2009 - today).
   

Full list of activities available upon request