288 search results - page 21 / 58 » Continuous Query Processing in Spatio-Temporal Databases |
DEXA
2007
Springer
14 years 18 days 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...
ICDE
2012
IEEE
11 years 11 months ago
2012
IEEE
— We consider how to support a large number of users over a wide-area network whose interests are characterized by range top-k continuous queries. Given an object update, we need...
SIGMOD
2004
ACM
14 years 8 months ago
2004
ACM
An eddy [2] is a highly adaptive query processing operator that continuously reoptimizes a query in response to changing runtime conditions. It does this by treating query process...
SIGMOD
2011
ACM
12 years 11 months ago
2011
ACM
An important means of allowing non-expert end-users to pose ad hoc queries — whether over single databases or data integration systems — is through keyword search. Given a set...
DASFAA
2007
IEEE
13 years 10 months ago
2007
IEEE
To support emerging database applications that deal with continuously changing (or moving) data objects (CCDOs), such as vehicles, RFIDs, and multi-stimuli sensors, one requires an...