A perceptually-supported sketch editor
UIST '94 Proceedings of the 7th annual ACM symposium on User interface software and technology
Mobile wireless computing: challenges in data management
Communications of the ACM
Fundamental challenges in mobile computing
PODC '96 Proceedings of the fifteenth annual ACM symposium on Principles of distributed computing
Client-server computing in mobile environments
ACM Computing Surveys (CSUR)
Introduction to data compression (2nd ed.)
Introduction to data compression (2nd ed.)
A visual tool for querying geographic databases
AVI '00 Proceedings of the working conference on Advanced visual interfaces
VL '96 Proceedings of the 1996 IEEE Symposium on Visual Languages
Querying GIS with Animated Spatial Sketches
VL '97 Proceedings of the 1997 IEEE Symposium on Visual Languages (VL '97)
International Journal of Web Engineering and Technology
Qualitative matching of spatial information
Proceedings of the 18th SIGSPATIAL International Conference on Advances in Geographic Information Systems
Matching geo-spatial information by qualitative spatial relations
Proceedings of the 1st ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information
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Traditional GIS tools are well suited for desktop workstations, but need to be adapted in order to satisfy the requirements of mobility. We propose a concept for sketch-based spatial querying in mobile GIS environments. This concept combines newest techniques for spatial querying and mobile technologies. Such a combination is beneficial because it allows formulating queries by drawing the desired spatial configuration on touch-sensitive screens, thus avoiding typing complex statements in some SQL-like query language. Client-server architectures in mobile environments are characterized by low and fluctuating bandwidth, and by frequent disconnections. We discuss client-server strategies in mobile environments and suggest an adaptive client-server architecture for geo-mobile querying. It is shown that adaptation to the mobile environment is necessary in order to ensure efficiency of geo-mobile queries.