152 search results - page 17 / 31 » Semantic Integrity Constraints for Spatial Databases |
107
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CLIMA
2010
15 years 1 months ago
2010
In this paper we present an agent language that combines agent functionality with an action theory and model-theoretic semantics. The language is based on abductive logic programmi...
VLDB
1999
ACM
15 years 4 months ago
1999
ACM
We present an optimization method and algorithm designed for three objectives: physical data independence, semantic optimization, and generalized tableau minimization. The method ...
DKE
2006
14 years 11 months ago
2006
In schema integration, schematic discrepancies occur when data in one database correspond to metadata in another. We explicitly declare the context that is the meta information re...
PODS
2005
ACM
15 years 12 months ago
2005
ACM
Owners of sources registered in an information integration system, which provides answers to a (potentially evolving) set of client queries, need to know their contribution to the...
112
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GISCIENCE
2008
Springer
15 years 25 days ago
2008
Springer
Geospatial data sharing is an increasingly important subject as large amount of data is produced by variety of sources, stored in incompatible formats, and accessible through diffe...