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» Combinatorial Algorithms for the Unsplittable Flow Problem
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ESA
2007
Springer
118views Algorithms» more  ESA 2007»
13 years 11 months ago
A Quasi-PTAS for Profit-Maximizing Pricing on Line Graphs
We consider the problem of pricing items so as to maximize the profit made from selling these items. An instance is given by a set E of n items and a set of m clients, where each c...
Khaled M. Elbassioni, René Sitters, Yan Zha...
WAOA
2005
Springer
177views Algorithms» more  WAOA 2005»
14 years 1 months ago
Approximation and Complexity of k-Splittable Flows
Given a graph with a source and a sink node, the NP–hard maximum k–splittable flow (MkSF) problem is to find a flow of maximum value with a flow decomposition using at most...
Ronald Koch, Martin Skutella, Ines Spenke
COR
2008
88views more  COR 2008»
13 years 7 months ago
Solving the swath segment selection problem through Lagrangean relaxation
The Swath Segment Selection Problem (SSSP) is an NP-hard combinatorial optimization problem arising in the context of planning and scheduling satellite operations. It was defined ...
Roberto Cordone, Federico Gandellini, Giovanni Rig...
INFORMATICALT
2000
125views more  INFORMATICALT 2000»
13 years 7 months ago
An Algorithm for Construction of Test Cases for the Quadratic Assignment Problem
In this paper we present an algorithm for generating quadratic assignment problem (QAP) instances with known provably optimal solution. The flow matrix of such instances is constru...
Gintaras Palubeckis
IPCO
1998
87views Optimization» more  IPCO 1998»
13 years 9 months ago
Simple Generalized Maximum Flow Algorithms
We introduce a gain-scaling technique for the generalized maximum ow problem. Using this technique, we present three simple and intuitive polynomial-time combinatorialalgorithms fo...
Éva Tardos, Kevin D. Wayne