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GIS
1998
ACM
15 years 4 months ago
Natural-Language Spatial Relations Between Linear and Areal Objects: The Topology and Metric of English-Language Terms
Spatial relations are the basis for many selections users perform when they query geographic information systems (GISs). Although such query languages use natural-language-like te...
A. Rashid B. M. Shariff, Max J. Egenhofer, David M...
CL
1999
Springer
15 years 4 months ago
An execution scheme for interactive problem-solving in concurrent constraint logic programming languages
Van Emden's incremental queries address the inadequacy of current Prolog-style querying mechanism in most logic programming systems for interactive problem-solving. In the co...
Jimmy Ho-Man Lee, Ho-fung Leung
SIGMOD
2002
ACM
127views Database» more  SIGMOD 2002»
15 years 4 months ago
Workflow management with service quality guarantees
Workflow management systems (WFMS) that are geared for the orchestration of business processes across multiple organizations are complex distributed systems: they consist of multi...
Michael Gillmann, Gerhard Weikum, Wolfgang Wonner
GIS
2010
ACM
15 years 3 months ago
CBGIR: content-based geographic image retrieval
We describe and demonstrate CBGIR, a web-based system for performing content-based image retrieval in large sets of high-resolution overhead images. The system provides a familiar...
Shawn Newsam, Daniel Leung, Oscar Caballero, Justi...
GIS
2010
ACM
15 years 3 months ago
Querying the future of spatio-temporal objects
Since navigation systems and tracking devices are becoming ubiquitous in our daily life, the development of efficient methods for processing massive sets of mobile objects are of ...
Philip Schmiegelt, Bernhard Seeger