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Approximating integer programs with positive right-hand sides
Linköping University, Department of Computer and Information Science, TCSLAB - Theoretical Computer Science Laboratory. Linköping University, The Institute of Technology. (TCSLAB)
Ecole Polytechnique.
2010 (English)In: INFORMATION PROCESSING LETTERS, ISSN 0020-0190, Vol. 110, no 10, 351-355 p.Article in journal (Refereed) Published
Abstract [en]

We study minimisation of integer linear programs with positive right-hand sides. We show that such programs can be approximated within the maximum absolute row sum of the constraint matrix A whenever the variables are allowed to take values in N. This result is optimal under the unique games conjecture. When the variables are restricted to bounded domains, we show that finding a feasible solution is NP-hard in almost all cases.

Place, publisher, year, edition, pages
Elsevier Science B.V., Amsterdam. , 2010. Vol. 110, no 10, 351-355 p.
Keyword [en]
Approximation algorithms, Integer programming
National Category
Computer Science
Identifiers
URN: urn:nbn:se:liu:diva-56686DOI: 10.1016/j.ipl.2010.02.011ISI: 000277661100001OAI: oai:DiVA.org:liu-56686DiVA: diva2:321234
Available from: 2010-05-31 Created: 2010-05-31 Last updated: 2017-02-23

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Jonsson, Peter

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