856 search results - page 139 / 172 » Location-based Spatial Queries |
SAC
2005
ACM
15 years 5 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...
108
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EDBT
2004
ACM
15 years 5 months ago
2004
ACM
Qualitative spatial reasoning forms an important part of the commonsense reasoning required for building intelligent Geographical Information Systems (GIS). Previous research has c...
COSIT
2001
Springer
15 years 4 months ago
2001
Springer
Geographical context is required of many information retrieval tasks in which the target of the search may be documents, images or records which are referenced to geographical spac...
123
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VRML
1998
ACM
15 years 3 months ago
1998
ACM
In its current state, VRML does not provide support for interaction and on-line access to databases, even though these are two fundamental issues for business applications. We hav...
136
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MM
1996
ACM
15 years 3 months ago
1996
ACM
Color histograms are used to compare images in many applications. Their advantages are efficiency, and insensitivity to small changes in camera viewpoint. However, color histogram...