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» Expressing Topological Connectivity of Spatial Databases
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GIS
2009
ACM
14 years 3 days ago
Topological relations from metric refinements
Naive Geography’s premise “Topology matters, metric refines” calls for metric properties that provide opportunities for finergrained distinctions than the purely qualitative...
Max J. Egenhofer, Matthew P. Dube
GIS
2004
ACM
14 years 6 months ago
Representing spatiality in a conceptual multidimensional model
Data Warehouses and On-Line Analytical Processing systems rely on a multidimensional model that includes dimensions, hierarchies, and measures. Such model allows to express users&...
Elzbieta Malinowski, Esteban Zimányi
ACTA
2002
111views more  ACTA 2002»
13 years 5 months ago
Adding a path connectedness operator to FO+poly (linear)
In the constraint database community, FO+poly and FO+linear have been proposed as foundations for spatial database query languages. One of the strengths of this approach is that t...
Chris Giannella, Dirk Van Gucht
EDBT
2010
ACM
135views Database» more  EDBT 2010»
13 years 3 months ago
Querying spatial patterns
Spatial data are common in many scientific and commercial domains such as geographical information systems and gene/protein expression profiles. Querying for distribution patterns...
Vishwakarma Singh, Arnab Bhattacharya, Ambuj K. Si...
MOBIHOC
2002
ACM
14 years 4 months ago
On the minimum node degree and connectivity of a wireless multihop network
This paper investigates two fundamental characteristics of a wireless multihop network: its minimum node degree and its k?connectivity. Both topology attributes depend on the spat...
Christian Bettstetter