1430 search results - page 13 / 286 » Query operations for moving objects database systems |
DEXA
2007
Springer
13 years 11 months ago
2007
Springer
The two dominant costs in continuous spatial query systems are the wireless communication cost for location update, and the evaluation cost for query processing. Existing works add...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
It has been pointed out repeatedly that spatial operations must be extended to include support for 3D and moving objects. The attempt to code by hand each spatial operation for ea...
EDBT
2010
ACM
13 years 9 months ago
2010
ACM
The availability of indoor positioning renders it possible to deploy location-based services in indoor spaces. Many such services will benefit from the efficient support for k n...
DASFAA
2008
IEEE
14 years 2 months ago
2008
IEEE
In this paper we propose a distributed meta-index using a peer-to-peer protocol to allow spatio-temporal queries of moving objects on a large set of distributed database servers. W...
GIS
2002
ACM
13 years 7 months ago
2002
ACM
A very important class of queries in GIS applications is the class of K-Nearest Neighbor queries. Most of the current studies on the K-Nearest Neighbor queries utilize spatial ind...