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» Ontology-Driven Geographic Information Systems
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PODS
1999
ACM
133views Database» more  PODS 1999»
13 years 12 months ago
Processing and Optimization of Multiway Spatial Joins Using R-Trees
One of the most important types of query processing in spatial databases and geographic information systems is the spatial join, an operation that selects, from two relations, all...
Dimitris Papadias, Nikos Mamoulis, Yannis Theodori...
ISD
1999
Springer
262views Database» more  ISD 1999»
13 years 12 months ago
Spatial Pictogram Enhanced Conceptual Data Models and Their Translation to Logical Data Models
The successful development of any geographic information system project needs the careful design and implementation of spatial databases via conceptual and logical data-modeling. T...
Shashi Shekhar, Ranga Raju Vatsavai, Sanjay Chawla...
COMPGEOM
1997
ACM
13 years 11 months ago
Realistic Input Models for Geometric Algorithms
Many algorithms developed in computational geometry are needlessly complicated and slow because they have to be prepared for very complicated, hypothetical inputs. To avoid this, ...
Mark de Berg, Matthew J. Katz, A. Frank van der St...
KDD
1997
ACM
146views Data Mining» more  KDD 1997»
13 years 11 months ago
Density-Connected Sets and their Application for Trend Detection in Spatial Databases
1 Several clustering algorithms have been proposed for class identification in spatial databases such as earth observation databases. The effectivity of the well-known algorithms ...
Martin Ester, Hans-Peter Kriegel, Jörg Sander...
EDBTW
2006
Springer
13 years 11 months ago
Towards Similarity-Based Topological Query Languages
Abstract. In recent times, the proliferation of spatial data on the Internet is beginning to allow a much larger audience to access and share data currently available in various Ge...
Alberto Belussi, Omar Boucelma, Barbara Catania, Y...