7825 search results - page 1318 / 1565 » Physics |
278
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GIS
2008
ACM
16 years 7 months ago
2008
ACM
Given a spatial crime data warehouse, that is updated infrequently and a set of operations O as well as constraints of storage and update overheads, the index type selection probl...
283
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GIS
2003
ACM
16 years 7 months ago
2003
ACM
With the proliferation of mobile computing, the ability to index efficiently the movements of mobile objects becomes important. Objects are typically seen as moving in two-dimensi...
295
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GIS
2004
ACM
16 years 7 months ago
2004
ACM
Spatial, temporal and spatio-temporal aggregates over continuous streams of remotely sensed image data build a fundamental operation in many applications in the environmental scie...
270
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GIS
2005
ACM
16 years 7 months ago
2005
ACM
Recent research literature on sensor network databases has focused on finding ways to perform in-network aggregation of sensor readings to reduce the message cost. However, with t...
271
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GIS
2006
ACM
16 years 7 months ago
2006
ACM
Creating complex spatio?temporal simulation models is a hot issue in the area of spatio?temporal databases [7]. While existing Moving Object Simulators (MOSs) address different ph...