437 search results - page 12 / 88 » Advanced Processing for Ontological Queries |
187
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GIS
2003
ACM
15 years 10 months ago
2003
ACM
Nearest neighbor query is one of the most important operations in spatial databases and their application domains, e.g., locationbased services, advanced traveler information syst...
FGCN
2008
IEEE
15 years 4 months ago
2008
IEEE
This paper proposes a novel secure query processing model for semantic sensor networks. A semantic sensor network (SSN) is a sensor network which includes semantics of sensory dat...
CIKM
2004
Springer
15 years 3 months ago
2004
Springer
Endeca’s approach to processing search queries in a distributed computing environment is predicated on concerns of correctness, scalability, and flexibility in deployment. Using...
109
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LOGCOM
2008
14 years 9 months ago
2008
We consider continuous quantities that are used to describe the physical world, such as colour, shape, sound, texture, and spatial and temporal arrangements. Natural languages are...
91
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SIGMOD
2004
ACM
15 years 9 months ago
2004
ACM
An effective query optimizer finds a query plan that exploits the characteristics of the source data. In data integration, little is known in advance about sources' propertie...