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FOCS
2006
IEEE
14 years 1 months ago
Approximate Min-Max Theorems of Steiner Rooted-Orientations of Hypergraphs
Given an undirected hypergraph and a subset of vertices S ⊆ V with a specified root vertex r ∈ S, the STEINER ROOTED-ORIENTATION problem is to find an orientation of all the...
Tamás Király, Lap Chi Lau
CORR
2010
Springer
142views Education» more  CORR 2010»
13 years 7 months ago
Integrality Gaps of Linear and Semi-definite Programming Relaxations for Knapsack
Recent years have seen an explosion of interest in lift and project methods, such as those proposed by Lov
Anna R. Karlin, Claire Mathieu, C. Thach Nguyen
EUROPAR
2010
Springer
13 years 7 months ago
A Fast 5/2-Approximation Algorithm for Hierarchical Scheduling
We present in this article a new approximation algorithm for scheduling a set of n independent rigid (meaning requiring a fixed number of processors) jobs on hierarchical parallel ...
Marin Bougeret, Pierre-François Dutot, Klau...
ICALP
1998
Springer
13 years 11 months ago
Efficient Approximation Algorithms for the Subset-Sums Equality Problem
We investigate the problem of finding two nonempty disjoint subsets of a set of n positive integers, with the objective that the sums of the numbers in the two subsets be as close ...
Cristina Bazgan, Miklos Santha, Zsolt Tuza
ICC
2009
IEEE
140views Communications» more  ICC 2009»
13 years 5 months ago
Approximation Algorithms for Traffic Grooming in WDM Rings
Abstract-- This paper addresses the problem of traffic grooming in WDM rings in which all traffic emanates from a single node and all other nodes are destination nodes. This "...
Kevin Corcoran, Seth Flaxman, Mark Neyer, Peter Sc...