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» Approximation Techniques for Spatial Data
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SDB
1995
91views Database» more  SDB 1995»
13 years 11 months ago
Semantics in Spatial Databases
In this paper we discuss two data models for spatial database systems: the linear data model and the topological data model. Both can be used to model a wide range of applications....
Bart Kuijpers, Jan Paredaens, Luc Vandeurzen
GRAPHICSINTERFACE
1996
13 years 8 months ago
Fast Rendering of Complex Environments Using a Spatial Hierarchy
We present a new method for accelerating the rendering of complex static scenes. The technique is applicable to unstructured scenes containing arbitrary geometric primitives and h...
Bradford L. Chamberlain, Tony DeRose, Dani Lischin...
VLDB
2005
ACM
149views Database» more  VLDB 2005»
14 years 7 months ago
Selectivity estimators for multidimensional range queries over real attributes
Estimating the selectivity of multidimensional range queries over real valued attributes has significant applications in data exploration and database query optimization. In this p...
Dimitrios Gunopulos, George Kollios, Vassilis J. T...
GIS
2006
ACM
14 years 8 months ago
Object localization based on directional information case of 2D vector data
If you were told that some object A was perfectly (or somewhat, or not at all) in some direction (e.g., west, above-right) of some reference object B, where in space would you loo...
Stelian Coros, JingBo Ni, Pascal Matsakis
TKDE
2010
195views more  TKDE 2010»
13 years 5 months ago
Query Processing Using Distance Oracles for Spatial Networks
—The popularity of location-based services and the need to do real-time processing on them has led to an interest in performing queries on transportation networks, such as findin...
Jagan Sankaranarayanan, Hanan Samet