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» Data-Parallel Primitives for Spatial Operations
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ICPP
1995
IEEE
13 years 8 months ago
Data-Parallel Primitives for Spatial Operations
Data-parallel primitives for performing operations on the PM1 quadtree and the bucket PMR quadtree are presented using the scan model. Algorithms are described for building these ...
Erik G. Hoel, Hanan Samet
VLDB
1994
ACM
137views Database» more  VLDB 1994»
13 years 9 months ago
Performance of Data-Parallel Spatial Operations
The performance of data-parallel algorithms for spatial operations using data-parallel variants of the bucket PMR quadtree, R-tree, and R+-tree spatial data structures is compared...
Erik G. Hoel, Hanan Samet
GIS
2005
ACM
14 years 6 months ago
Use of rational numbers in the design of robust geometric primitives for three-dimensional spatial database systems
A necessary step in the implementation of three-dimensional spatial data types for spatial database systems and GIS is the development of robust geometric primitives. The authors ...
Brian E. Weinrich, Markus Schneider
DATAMINE
2000
118views more  DATAMINE 2000»
13 years 5 months ago
Spatial Data Mining: Database Primitives, Algorithms and Efficient DBMS Support
Abstract: Spatial data mining algorithms heavily depend on the efficient processing of neighborhood relations since the neighbors of many objects have to be investigated in a singl...
Martin Ester, Alexander Frommelt, Hans-Peter Krieg...
TACS
2001
Springer
13 years 9 months ago
A Spatial Logic for Concurrency
We present a logic that can express properties of freshness, secrecy, structure, and behavior of concurrent systems. In addition to standard logical and temporal operators, our lo...
Luís Caires, Luca Cardelli