480 search results - page 26 / 96 » Spatial Index on Air |
111
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PODS
1999
ACM
15 years 6 months ago
1999
ACM
One of the most important types of query processing in spatial databases and geographic information systems is the spatial join, an operation that selects, from two relations, all...
202
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GIS
2009
ACM
16 years 2 months ago
2009
ACM
Modern geographic databases can contain a large volume of data that need to be distributed to subscribed customers. The data can be modeled as a cube, where typical dimensions inc...
198
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ICDE
2007
IEEE
16 years 3 months ago
2007
IEEE
Database search for images containing icons with specific mutual spatial relationships can be facilitated by an appropriately structured index. For the case of images containing s...
105
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SAC
2005
ACM
15 years 7 months ago
2005
ACM
: Traditional spatial indexes like R-tree usually assume the database is not updated frequently. In applications like location-based services and sensor networks, this assumption i...
114
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ICASSP
2009
IEEE
15 years 8 months ago
2009
IEEE
In this paper, we propose a method for extracting color image features, called color index local auto-correlations. Pixel color is quantized and described sparsely in a manner sim...