565 search results - page 25 / 113 » Multiple Range Query Optimization in Spatial Databases |
ICDE
2007
IEEE
15 years 3 months ago
2007
IEEE
With the proliferation of mobile devices (e.g., PDAs, cell phones, etc.), location-based services have become more and more popular in recent years. However, users have to reveal ...
VLDB
2004
ACM
15 years 3 months ago
2004
ACM
Progressive Optimization (POP) is a technique to make query plans robust, and minimize need for DBA intervention, by repeatedly re-optimizing a query during runtime if the cardina...
CIKM
2008
Springer
14 years 11 months ago
2008
Springer
The typical workload in a database system consists of a mixture of multiple queries of different types, running concurrently and interacting with each other. Hence, optimizing per...
SSDBM
2010
IEEE
15 years 2 months ago
2010
IEEE
Many applications require to determine the k-nearest neighbors for multiple query points simultaneously. This task is known as all-(k)-nearest-neighbor (AkNN) query. In this paper,...
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GIS
2008
ACM
14 years 10 months ago
2008
ACM
In this paper we study in-network query processing in disconnected mobile environments, where both ad-hoc communication and infrastructure communication are available. Depending o...