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hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorVANDERBECK, François
dc.date.accessioned2024-04-04T02:44:10Z
dc.date.available2024-04-04T02:44:10Z
dc.date.issued2002
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/191385
dc.description.abstractEnThe bounded multiple-class binary knapsack problem is a variant of the knapsack problem where the items are partitioned into classes and the item weights in each class are a multiple of a class weight. Thus, each item has an associated multiplicity. The constraints consists of an upper bound on the total item weight that can be selected and upper bounds on the total multiplicity of items that can be selected in each class. The objective is to maximize the sum of the profits associated with the selected items. This problem arises as a sub-problem in a column generation approach to the cutting stock problem. A special case of this model, where item profits are restricted to be multiples of a class profit, corresponds to the problem obtained by transforming an integer knapsack problem into a 0-1 form. However, the transformation proposed here does not involve a duplication of solutions as the standard transformation typically does. The paper shows that the LP-relaxation of this model can be solved by a greedy algorithm in linear time, a result that extends those of Dantzig (1957) and Balas and Zemel (1980) for the 0-1 knapsack problem. Hence, one can derive exact algorithms for the multi-class binary knapsack problem by adapting existing algorithms for the 0-1 knapsack problem. Computational results are reported that compare solving a bounded integer knapsack problem by transforming it into a standard binary knapsack problem versus using the multiple-class model as a 0-1 form.
dc.language.isoen
dc.publisherSpringer
dc.title.enExtending Dantzig's bound to the bounded multiple-class binary Knapsack problem
dc.typeArticle de revue
dc.identifier.doi10.1007/s10107-002-0300-7
bordeaux.journalMathematical Programming, Series A
bordeaux.page125-136
bordeaux.volume94
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.issue1
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierinria-00342631
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//inria-00342631v1
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