129 search results - page 23 / 26 » Studying an Approach to Query Spatial XML |
EDBT
2006
ACM
15 years 9 months ago
2006
ACM
Given a set of N multi-dimensional points, we study the computation of -quantiles according to a ranking function F, which is provided by the user at runtime. Specifically, F compu...
101
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GIS
2010
ACM
14 years 6 months ago
2010
ACM
Research on Moving Object Databases (MOD) has resulted in sophisticated query mechanisms for moving objects and regions. Wireless Sensor Networks (WSN) support a wide range of app...
PODS
1999
ACM
15 years 1 months ago
1999
ACM
We investigate the problem of how to extend constraint query languages with aggregate operators. We deal with standard relational aggregation, and also with aggregates speci c to ...
123
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ICDE
2010
IEEE
15 years 9 months ago
2010
IEEE
The Voronoi diagram is an important technique for answering nearest-neighbor queries for spatial databases. In this paper, we study how the Voronoi diagram can be used on uncertain...
GISCIENCE
2010
Springer
14 years 10 months ago
2010
Springer
Researchers from the cognitive and spatial sciences are studying text descriptions of movement patterns in order to examine how humans communicate and understand spatial informatio...