671 search results - page 27 / 135 » Spatial Reasoning with a Hole |
GIS
1998
ACM
13 years 7 months ago
1998
ACM
Spatial relations are the basis for many selections users perform when they query geographic information systems (GISs). Although such query languages use natural-language-like te...
GIS
2000
ACM
13 years 11 months ago
2000
ACM
Uncertainty management for geometric data is currently an important problem for (extensible) databases in general and for spatial databases, image databases, and GIS in particular...
GIS
1997
ACM
13 years 11 months ago
1997
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 involve...
GIS
2005
ACM
14 years 8 months ago
2005
ACM
Georeferenced information is growing every day, and geographical information systems are becoming crucial in many decision processes. As a consequence, extracting knowledge from G...
DEXA
2004
Springer
14 years 1 months ago
2004
Springer
Topological predicates between spatial objects have always been a main area of research on spatial data handling, reasoning, and query languages. The focus of research has definit...