3456 search results - page 79 / 692 » Semantics in Spatial Databases |
COSIT
1997
Springer
14 years 7 days ago
1997
Springer
Abstract. Although maps and partitions are ubiquitous in geographical information systems and spatial databases, there is only little work investigating their foundations. We give ...
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...
IDEAS
2003
IEEE
14 years 1 months ago
2003
IEEE
This paper presents a method for representing uncertainty in spatial data in a database. The model presented requires moderate amounts of storage space. To compute the probability...
GISCIENCE
2010
Springer
13 years 8 months ago
2010
Springer
The categorization of our environment into feature types is an essential prerequisite for cartography, geographic information retrieval, routing applications, spatial decision supp...
ICMI
2003
Springer
14 years 1 months ago
2003
Springer
Many user interfaces, from graphic design programs to navigation aids in cars, share a virtual space with the user. Such applications are often ideal candidates for speech interfa...