2674 search results - page 78 / 535 » Data Models and Query Languages for Spatial Databases |
228
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GIS
2005
ACM
16 years 3 months ago
2005
ACM
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
161
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SSD
1993
Springer
15 years 6 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...
212
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ICDE
2007
IEEE
16 years 3 months ago
2007
IEEE
Elevation maps are a widely used spatial data representation in geographical information systems (GIS). Paths on elevation maps can be characterized by profiles, which describe re...
202
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VLDB
1998
ACM
15 years 2 months ago
1998
ACM
The increasing power of modern computers steadily opens up new application domains for advanced data processing such as engineering and knowledge-based applications. To meet their...
ER
2001
Springer
15 years 7 months ago
2001
Springer
Rapid development of information technology such as mobile terminals and GPS systems enabled information services that provide location-oriented information based on users’ posit...