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SIGMOD
2004
ACM
148views Database» more  SIGMOD 2004»
14 years 7 months ago
Vertical and Horizontal Percentage Aggregations
Existing SQL aggregate functions present important limitations to compute percentages. This article proposes two SQL aggregate functions to compute percentages addressing such lim...
Carlos Ordonez
VLDB
1989
ACM
155views Database» more  VLDB 1989»
13 years 11 months ago
Parallel Processing of Recursive Queries in Distributed Architectures
This paper presents a parallel algorithm for recursive query processing and shows how it can be efficiently implemented in a local computer network. The algorithm relies on an int...
Guy Hulin
CAD
2005
Springer
13 years 7 months ago
Optimizing the topological and combinatorial complexity of isosurfaces
Since the publication of the original Marching Cubes algorithm, numerous variations have been proposed for guaranteeing water-tight constructions of triangulated approximations of...
Carlos Andújar, Pere Brunet, Antoni Chica, ...
PRL
2007
180views more  PRL 2007»
13 years 7 months ago
Feature selection based on rough sets and particle swarm optimization
: We propose a new feature selection strategy based on rough sets and Particle Swarm Optimization (PSO). Rough sets has been used as a feature selection method with much success, b...
Xiangyang Wang, Jie Yang, Xiaolong Teng, Weijun Xi...
DCC
2004
IEEE
14 years 7 months ago
Slepian-Wolf Coding for Nonuniform Sources Using Turbo Codes
The recently proposed turbo-binning scheme is shown to be both efficient and optimal for uniform source Slepian-Wolf coding problem [1]. This paper studies the case when sources a...
Jing (Tiffany) Li, Zhenyu Tu, Rick S. Blum