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» Expressing Topological Connectivity of Spatial Databases
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CDB
1997
Springer
85views Database» more  CDB 1997»
13 years 8 months ago
On Expressing Topological Connectivity in Spatial Datalog
We consider two-dimensional spatial databases defined in terms of polynomial inequalities and investigate the expressibility of the topological connectivity query for these databa...
Bart Kuijpers, Marc Smits
DBPL
1999
Springer
109views Database» more  DBPL 1999»
13 years 8 months ago
Expressing Topological Connectivity of Spatial Databases
We consider two-dimensional spatial databases defined in terms of polynomial inequalities and focus on the potential of programming languages for such databases to express queries...
Floris Geerts, Bart Kuijpers
JCSS
2000
92views more  JCSS 2000»
13 years 4 months ago
Querying Spatial Databases via Topological Invariants
The paper investigates the use of topological annotations (called topological invariants) to answer topological queries in spatial databases. The focus is on the translation of to...
Luc Segoufin, Victor Vianu
TOCL
2002
96views more  TOCL 2002»
13 years 4 months ago
On first-order topological queries
One important class of spatial database queries is the class of topological queries, that is, queries invariant under homeomorphisms. Westudy topological queries expressible in th...
Martin Grohe, Luc Segoufin
PODS
2004
ACM
110views Database» more  PODS 2004»
14 years 4 months ago
A Characterization of First-Order Topological Properties of Planar Spatial Data
d abstract) Michael Benedikt Bell Labs Jan Van den Bussche Limburgs Universitair Centrum Christof L?oding Lehrstuhl Informatik VII RWTH Aachen Thomas Wilke Institut f?ur Informatik...
Christof Löding, Jan Van den Bussche, Michael...