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VLDB
1995
ACM
155views Database» more  VLDB 1995»
15 years 1 months ago
Aggregate-Query Processing in Data Warehousing Environments
In this paper we introduce generalized projections (GPs), an extension of duplicateeliminating projections, that capture aggregations, groupbys, duplicate-eliminating projections ...
Ashish Gupta, Venky Harinarayan, Dallan Quass
IPPS
2000
IEEE
15 years 2 months ago
A Multilevel Algorithm for Spectral Partitioning with Extended Eigen-Models
Parallel solution of irregular problems require solving the graph partitioning problem. The extended eigenproblem appears as the solution of some relaxed formulations of the graph ...
Suely Oliveira, Takako Soma
74
Voted
IPPS
2005
IEEE
15 years 3 months ago
Parallelization of Direct Algorithms using Multisplitting Methods in Grid Environments
The goal of this paper is to introduce a new approach to the building of efficient distributed linear system solvers. The starting point of the results of this paper lies in the ...
Jacques M. Bahi, Raphaël Couturier
70
Voted
GECCO
2005
Springer
101views Optimization» more  GECCO 2005»
15 years 3 months ago
A scalable parallel genetic algorithm for x-ray spectroscopic analysis
We use a parallel multi-objective genetic algorithm to drive a search and reconstruction spectroscopic analysis of plasma gradients in inertial confinement fusion (ICF) implosion...
Kai Xu, Sushil J. Louis, Roberto C. Mancini
CACM
2008
53views more  CACM 2008»
14 years 9 months ago
Distributed selection: a missing piece of data aggregation
In this article, we study the problem of distributed selection from a theoretical point of view. Given a general connected graph of diameter D consisting of n nodes in which each ...
Fabian Kuhn, Thomas Locher, Roger Wattenhofer