686 search results - page 33 / 138 » A query simulation system to illustrate database query execu... |
ICDE
2003
IEEE
15 years 1 days ago
2003
IEEE
In moving object environments, it is infeasible for the database tracking the movement of objects to store the exact locations of objects at all times. Typically, the location of a...
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GIS
2006
ACM
14 years 11 months ago
2006
ACM
Remotely sensed data, in particular satellite imagery, play many important roles in environmental applications and models. In particular applications that study (rapid) changes in...
CCGRID
2005
IEEE
14 years 4 months ago
2005
IEEE
Partial replication is one type of optimization to speed up execution of queries submitted to large datasets. In partial replication, a portion of the dataset is extracted, re-org...
TMC
2008
13 years 10 months ago
2008
Location-based spatial queries (LBSQs) refer to spatial queries whose answers rely on the location of the inquirer. Efficient processing of LBSQs is of critical importance with the...
DPD
1998
13 years 10 months ago
1998
Distributed databases operating over wide-area networks such as the Internet, must deal with the unpredictable nature of the performance of communication. The response times of acc...