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» Persistent Spatial Relations - a Systems Design Objective
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EJIS
2007
150views more  EJIS 2007»
13 years 8 months ago
e-Government information systems: Evaluation-led design for public value and client trust
e-Government systems differ from commercial information systems (IS) in that they frequently encompass strategic goals that go beyond efficiency, effectiveness and economy, and in...
Michael Grimsley, Anthony Meehan
AR
2006
89views more  AR 2006»
13 years 8 months ago
Design and validation of a complete haptic system for manipulative tasks
The present work deals with the design, implementation and assessment of a new haptic system specifically conceived for manipulative tasks in virtual environments. Such a system wa...
Massimo Bergamasco, Carlo Alberto Avizzano, Antoni...
GIS
2006
ACM
14 years 9 months ago
Representation of periodic moving objects in databases
In the real world, lots of objects with changing position can be found. Some of them repeat the same movement several times, called periodic movements. Examples include airplanes,...
Ralf Hartmut Güting, Thomas Behr, Victor Teix...
PODS
2004
ACM
96views Database» more  PODS 2004»
14 years 8 months ago
Roads, Codes and Spatiotemporal Queries
We present a novel coding-based technique for answering spatial and spatiotemporal queries on objects moving along a system of curves on the plane such as many road networks. We h...
Sandeep Gupta, Swastik Kopparty, Chinya V. Ravisha...
SIGSOFT
2008
ACM
14 years 8 months ago
Alchemy: transmuting base alloy specifications into implementations
Alloy specifications are used to define lightweight models of systems. We present Alchemy, which compiles Alloy specifications into implementations that execute against persistent...
Shriram Krishnamurthi, Kathi Fisler, Daniel J. Dou...