This book constitutes the refereed proceedings of the Third
International Conference on Geographic Information Secience,
GIScience 2004, held in Adelphi, MD, USA in October 2004.
The 25 revised full papers presented were carefully reviewed and
selected from many submissions. Among the topics addressed are
knowledge mapping, geo-self-organizing maps, space syntax,
geospatial data integration, geospatial modeling, spatial search,
spatial indexing, spatial data analysis, mobile ad-hoc geosensor
networks, map comparison, spatiotemporal relations, ontologies, and
geospatial event modeling.