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hal.structure.identifierReformulations based algorithms for Combinatorial Optimization [Realopt]
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorDETIENNE, Boris
hal.structure.identifierDepartment of electrical, electronic and information engineering "GUGLIELMO MARCONI" [Bologna] [DEI]
dc.contributor.authorLEFEBVRE, Henri
hal.structure.identifierDepartment of electrical, electronic and information engineering "GUGLIELMO MARCONI" [Bologna] [DEI]
dc.contributor.authorMALAGUTI, Enrico
hal.structure.identifierDepartment of electrical, electronic and information engineering "GUGLIELMO MARCONI" [Bologna] [DEI]
dc.contributor.authorMONACI, Michele
dc.date.accessioned2024-04-04T02:45:12Z
dc.date.available2024-04-04T02:45:12Z
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/191447
dc.description.abstractEnIn this work, we study optimization problems where some cost parameters are not known at decision time and the decision flow is modeled as a two-stage process within a robust optimization setting. We address general problems in which all constraints (including those linking the first and the second stages) are defined by convex functions and involve mixed-integer variables, thus extending the existing literature to a much wider class of problems. We show how these problems can be reformulated using Fenchel duality, allowing to derive an enumerative exact algorithm, for which we prove-convergence in a finite number of operations. An implementation of the resulting algorithm, embedding a column generation scheme, is then computationally evaluated on two different problems, using instances that are derived starting from the existing literature. To the best of our knowledge, this is the first approach providing results on the practical solution of this class of problems.
dc.language.isoen
dc.subject.enBranch-and-bound
dc.subject.enTwo-stage robust optimization
dc.subject.enReformulation
dc.subject.enFenchel duality
dc.subject.enColumn generation
dc.subject.enComputational experiments
dc.title.enAdaptive robust optimization with objective uncertainty
dc.typeDocument de travail - Pré-publication
dc.subject.halMathématiques [math]/Optimisation et contrôle [math.OC]
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
hal.identifierhal-03371438
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03371438v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=DETIENNE,%20Boris&LEFEBVRE,%20Henri&MALAGUTI,%20Enrico&MONACI,%20Michele&rft.genre=preprint


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