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PPOPP
2005
ACM
14 years 3 months ago
A linear-time algorithm for optimal barrier placement
We want to perform compile-time analysis of an SPMD program and place barriers in it to synchronize it correctly, minimizing the runtime cost of the synchronization. This is the b...
Alain Darte, Robert Schreiber
COCOA
2008
Springer
13 years 11 months ago
Strong Formulations for 2-Node-Connected Steiner Network Problems
Abstract. We consider a survivable network design problem known as the 2-NodeConnected Steiner Network Problem (2NCON): we are given a weighted undirected graph with a node partiti...
Markus Chimani, Maria Kandyba, Ivana Ljubic, Petra...
ANOR
2008
66views more  ANOR 2008»
13 years 10 months ago
Optimization problems involving collections of dependent objects
We describe a class of problems motivated by numerous real-world applications where there is a collection of objects that have both a cost and a value, but where some of those obj...
David L. Roberts, Charles L. Isbell, Michael L. Li...
PR
2008
169views more  PR 2008»
13 years 10 months ago
A survey of kernel and spectral methods for clustering
Clustering algorithms are a useful tool to explore data structures and have been employed in many disciplines. The focus of this paper is the partitioning clustering problem with ...
Maurizio Filippone, Francesco Camastra, Francesco ...
PRL
2006
117views more  PRL 2006»
13 years 10 months ago
Improving image segmentation quality through effective region merging using a hierarchical social metaheuristic
This paper proposes a new evolutionary region merging method in order to efficiently improve segmentation quality results. Our approach starts from an oversegmented image, which is...
Abraham Duarte, Miguel Ángel Sánchez...