192 search results - page 24 / 39 » Analyzing Range Queries on Spatial Data |
JSAC
2007
13 years 7 months ago
2007
Abstract— In this paper we study the effects of practical pilotassisted channel state estimation on the achievable information theoretic data rates (uplink and downlink) in a mul...
VLDB
1997
ACM
13 years 12 months ago
1997
ACM
Efficient user-adaptable similarity search more and more increases in its importance for multimedia and spatial database systems. As a general similarity model for multi-dimension...
ICFP
2009
ACM
14 years 8 months ago
2009
ACM
During the life cycle of an XML application, both schemas and queries may change from one version to another. Schema evolutions may affect query results and potentially the validi...
INFOCOM
2009
IEEE
14 years 2 months ago
2009
IEEE
—We study the problem of in-network processing and queries of trajectories of moving targets in a sensor network. The main idea is to exploit the spatial coherence of target traj...
MIS
1999
Springer
13 years 12 months ago
1999
Springer
In a video database, large amount of information involving video, audio, and/or images needs to be stored and managed. Therefore, there is an important need for novel techniques a...