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The all-or-nothing flow problem in directed graphs with symmetric demand pairs

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Chekuri, Chandra and Ene, Alina (2014) The all-or-nothing flow problem in directed graphs with symmetric demand pairs. In: Lee, Jon and Vygen, Jens, (eds.) Integer Programming and Combinatorial Optimization : 17th International Conference, IPCO 2014, Bonn, Germany, June 23-25, 2014 : proceedings. Lecture notes in computer science (Number 8494). Springer International Publishing, pp. 222-233. ISBN 9783319075563

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Official URL: http://dx.doi.org/10.1007/978-3-319-07557-0_19

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Abstract

We study the approximability of the All-or-Nothing multicommodity flow problem in directed graphs with symmetric demand pairs (SymANF). The input consists of a directed graph G = (V, E) and a collection of (unordered) pairs of nodes M={s1t1,s2t2,…,sktk}. A subset M′ of the pairs is routable if there is a feasible multicommodity flow in G such that, for each pair siti∈M′, the amount of flow from s i to t i is at least one and the amount of flow from t i to s i is at least one. The goal is to find a maximum cardinality subset of the given pairs that can be routed. Our main result is a poly-logarithmic approximation with constant congestion for SymANF. We obtain this result by extending the well-linked decomposition framework of [6] to the directed graph setting with symmetric demand pairs. We point out the importance of studying routing problems in this setting and the relevance of our result to future work.

Item Type: Book Item
Subjects: Q Science > QA Mathematics
Divisions: Faculty of Science, Engineering and Medicine > Science > Computer Science
Library of Congress Subject Headings (LCSH): Directed graphs
Series Name: Lecture notes in computer science
Publisher: Springer International Publishing
ISBN: 9783319075563
ISSN: 0302-9743
Book Title: Integer Programming and Combinatorial Optimization : 17th International Conference, IPCO 2014, Bonn, Germany, June 23-25, 2014 : proceedings
Editor: Lee, Jon and Vygen, Jens
Official Date: 2014
Dates:
DateEvent
2014Published
Number: Number 8494
Page Range: pp. 222-233
DOI: 10.1007/978-3-319-07557-0_19
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 27 March 2016
Date of first compliant Open Access: 27 March 2016
Funder: National Science Foundation (U.S.) (NSF), Toyota Technological Institute at Chicago (TTI)
Grant number: CCF-1016684 (NSF), CCF-1319376 (NSF), CCF-0844872 (NSF)
Version or Related Resource: Chekuri, C. and Ene, A. (2014). The all-or-nothing flow problem in directed graphs with symmetric demand pairs. Mathematical Programming Series B.
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