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SIGMOD
1994
ACM
106views Database» more  SIGMOD 1994»
14 years 2 months ago
Multi-Step Processing of Spatial Joins
Spatial joins are one of the most important operations for combining spatial objects of several relations. In this paper, spatial join processing is studied in detail for extended...
Thomas Brinkhoff, Hans-Peter Kriegel, Ralf Schneid...
IGIS
1994
145views GIS» more  IGIS 1994»
14 years 2 months ago
Approximations for a Multi-Step Processing of Spatial Joins
The basic concept for processing spatial joins consists of two steps: First, the spatial join is performed on the minimum bounding rectangles of the objects by using a spatial acce...
Thomas Brinkhoff, Hans-Peter Kriegel
SSDBM
2000
IEEE
109views Database» more  SSDBM 2000»
14 years 3 months ago
Toward Spatial Joins for Polygons
Efficient evaluation of spatial join is an important issue in spatial databases. The traditional evaluation strategy is to perform a join of “minimum bounding rectangles” (mbr...
Hongjun Zhu, Jianwen Su, Oscar H. Ibarra
ICDE
2003
IEEE
133views Database» more  ICDE 2003»
15 years 3 days ago
Evaluating Window Joins over Unbounded Streams
We investigate algorithms for evaluating moving window joins over pairs of unbounded streams. We introduce a unit-time-basis cost model to analyze the expected performance of thes...
Jaewoo Kang, Jeffrey F. Naughton, Stratis Viglas
ICC
2007
IEEE
126views Communications» more  ICC 2007»
14 years 5 months ago
Evaluation of Grouping Strategies for an Hierarchical SDMA/TDMA Scheduling Process
Abstract— Adding SDMA capabilities to modern wireless communication systems like IEEE 802.16 WiMAX promises high system capacity gains but raises the problem of combining orthogo...
Christian Hoymann, Jan Ellenbeck, Ralf Pabst, Marc...