90 search results - page 1 / 18 » Realms: A Foundation for Spatial Data Types in Database Syst... |
SSD
1993
Springer
13 years 8 months ago
1993
Springer
: Spatial data types or algebras for database systems should (i) be fully general (which means, closed under set operations, hence e.g. a region value can be a set of polygons with...
GIS
2005
ACM
14 years 5 months ago
2005
ACM
A necessary step in the implementation of three-dimensional spatial data types for spatial database systems and GIS is the development of robust geometric primitives. The authors ...
GIS
2009
ACM
13 years 9 months ago
2009
ACM
Apart from visualization tasks, three-dimensional (3D) data management features are not or only hardly available in current spatial database systems and Geographic Information Sys...
COSIT
1997
Springer
13 years 8 months 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 ...
RSKT
2007
Springer
13 years 10 months ago
2007
Springer
Abstract. A fundamental data modeling problem in geographical information systems and spatial database systems refers to an appropriate treatment of the vagueness or indeterminacy ...