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SSD
1995
Springer
146views Database» more  SSD 1995»
13 years 8 months ago
Discovery of Spatial Association Rules in Geographic Information Databases
Spatial data mining, i.e., discovery of interesting, implicit knowledge in spatial databases, is an important task for understanding and use of spatial data- and knowledge-bases. I...
Krzysztof Koperski, Jiawei Han
SDB
1995
91views Database» more  SDB 1995»
13 years 8 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
GIS
2007
ACM
13 years 8 months ago
Pipelined spatial join processing for quadtree-based indexes
Spatial join is an important yet costly operation in spatial databases. In order to speed up the execution of a spatial join, the input tables are often indexed based on their spa...
Walid G. Aref
KDD
1997
ACM
146views Data Mining» more  KDD 1997»
13 years 8 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...
ICDT
1997
ACM
89views Database» more  ICDT 1997»
13 years 8 months ago
On Topological Elementary Equivalence of Spatial Databases
We consider spatial databases and queries definable using first-order logic and real polynomial inequalities. We are interested in topological queries: queries whose result only ...
Bart Kuijpers, Jan Paredaens, Jan Van den Bussche
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
DAGM
1999
Springer
13 years 8 months ago
Knowledge Discovery in Spatial Databases
Both, the number and the size of spatial databases, such as geographic or medical databases, are rapidly growing because of the large amount of data obtained from satellite images,...
Martin Ester, Hans-Peter Kriegel, Jörg Sander
PODS
2000
ACM
102views Database» more  PODS 2000»
13 years 9 months ago
Linear Approximation of Planar Spatial Databases Using Transitive-Closure Logic
We consider spatial databases in the plane that can be defined by polynomial constraint formulas. Motivated by applications in geographic information systems, we investigate line...
Floris Geerts, Bart Kuijpers
HICSS
2000
IEEE
169views Biometrics» more  HICSS 2000»
13 years 9 months ago
A Software System for Spatial Data Analysis and Modeling
Advances in geographical information systems (GIS) and supporting data collection technology has resulted in the rapid collection of a huge amount of spatial data. However, known ...
Aleksandar Lazarevic, Tim Fiez, Zoran Obradovic