Dave Abel CSIRO, Australia Divyakant Agrawal University of California, Santa Barbara, USA Lars Arge Duke University, USA Elisa Bertino University of Milan, Italy Michael Boehlen Aalborg University, Denmark Thomas Brinkhoff Fachhochschule Oldenburg, Germany Jan Chomicki State University of New York, Buffalo, USA Margaret Dunham Southern Methodist University, Texas, USA Max Egenhofer University of Maine, USA Dimitrios Gunopulos University of California, Riverside, USA Jim Gray Microsoft, USA Ralf-Hartmut Gueting FernUniversitaet Hagen, Germany Erik Hoel ESRI, USA George Kollios Boston University, USA Hans-Peter Kriegel University of Munich Scott Leutenegger Denver University, USA Nikos Lorentzos Agricultural University of Athens, Greece Yannis Manolopoulos Aristotle University of Thessaloniki, Greece Claudia Medeiros University of Campinas, Brazil Sharad Mehrotra University of California, Irvine, USA Scott Morehouse ESRI, USA Mario Nascimento University of Alberta, Canada Raymond Ng University of British Columbia, Canada Dimitris Papadias Hong Kong University of Science and Technology, PRC John Roddick Flinders University, Australia Betty Salzberg Northeastern University, USA Hanan Samet University of Maryland, USA Michel Scholl INRIA, France Shashi Shekhar University of Minnesota, USA Yannis Theodoridis CTI, Greece Nectaria Tryfona, Aalborg University, Denmark Agnes Voisard Free University, Berlin, Germany Kyu-Young Wang KAIST, South Korea Peter Widmayer ETH, Switzerland Jef Wijsen University of Mons-Hainaut, Belgium Ouri Wolfson University of Illinois, Chicago, USA