A note on upper bounds to the robust knapsack problem with discrete scenarios

Goerigk, Marc (2014) A note on upper bounds to the robust knapsack problem with discrete scenarios. Annals of Operations Research, 223 (1). pp. 461-469. ISSN 0254-5330

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We consider the knapsack problem in which the objective function is uncertain, and given by a finite set of possible realizations. The resulting robust optimization problem is a max–min problem that follows the pessimistic view of optimizing the worst-case behavior. Several branch-and-bound algorithms have been proposed in the recent literature. In this short note, we show that by using a simple upper bound that is tailored to balance out the drawbacks of the current best approach based on surrogate relaxation, computation times improve by up to an order of magnitude. Additionally, one can make use of any upper bound for the classic knapsack problem as an upper bound for the robust problem.

Item Type: Journal Article
Journal or Publication Title: Annals of Operations Research
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/1800
Departments: Lancaster University Management School > Management Science
ID Code: 76542
Deposited By: ep_importer_pure
Deposited On: 10 Nov 2015 10:16
Refereed?: Yes
Published?: Published
Last Modified: 01 Jan 2020 09:27
URI: https://eprints.lancs.ac.uk/id/eprint/76542

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