856 search results - page 42 / 172 » Location-based Spatial Queries |
ICDT
1997
ACM
14 years 3 months ago
1997
ACM
We consider spatial databases and queries definable using first-order logic and real polynomial inequalities. We are interested in topological queries: queries whose result only ...
GIS
1999
ACM
14 years 3 months ago
1999
ACM
Spatial indexes, such as the PMR quadtree, are important in spatial databases for efficient execution of queries involving spatial constraints, especially when the queries involv...
ICDE
1994
IEEE
14 years 3 months ago
1994
IEEE
We describe the design and implementation of QBISM (Query By Interactive, Spatial Multimedia), a prototype for querying and visualizing 3D spatial data. Our first application is i...
ICDE
2010
IEEE
2010
IEEE
Techniques for Efficiently Searching in Spatial, Temporal, Spatio-temporal, and Multimedia Databases
14 years 10 months ago
This tutorial provides a comprehensive and comparative overview of general techniques to efficiently support similarity queries in spatial, temporal, spatio-temporal, and multimedi...
ICDE
2008
IEEE
15 years 10 days ago
2008
IEEE
Probabilistic data have recently become popular in applications such as scientific and geospatial databases. For images and other spatial datasets, probabilistic values can capture...