856 search results - page 45 / 172 » Location-based Spatial Queries |
PODS
2000
ACM
14 years 3 months ago
2000
ACM
We consider spatial databases in the plane that can be defined by polynomial constraint formulas. Motivated by applications in geographic information systems, we investigate line...
ICDE
2000
IEEE
15 years 10 days ago
2000
IEEE
Optimizing queries that involve operations on spatial data requires estimating the selectivity and cost of these operations. In this paper, we focus on estimating the cost of spat...
ICDE
2008
IEEE
15 years 10 days ago
2008
IEEE
- The embedding of positioning capabilities in mobile devices and the emergence of location-based applications have created novel opportunities for utilizing several types of multi...
SEBD
2003
14 years 10 days ago
2003
The Ambient Logic is a modal logic proposed to describe the structural and computational properties of distributed and mobile computations. The static part of the Ambient Logic is,...
PAKDD
2007
ACM
14 years 5 months ago
2007
ACM
The emerging interests in spatial pattern mining lead to the demand for a flexible spatial pattern mining language, on which easy to use and understand visual pattern language cou...