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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
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 | ||||
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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: |
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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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