Matheuristic fixed set search applied to the multidimensional knapsack problem and the knapsack problem with forfeit sets

Raka Jovanovic () and Stefan Voß ()
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Raka Jovanovic: Hamad bin Khalifa University
Stefan Voß: University of Hamburg

OR Spectrum: Quantitative Approaches in Management, 2024, vol. 46, issue 4, No 10, 1329-1365

Abstract: Abstract In this paper, we present a solution method for the multidimensional knapsack problem (MKP) and the knapsack problem with forfeit sets (KPFS) using a population-based matheuristic approach. Specifically, the learning mechanism of the fixed set search (FSS) metaheuristic is combined with the use of integer programming for solving subproblems. This is achieved by introducing a new ground set of elements that can be used for both the MKP and the KPFS that aim to maximize the information provided by the fixed set. The method for creating fixed sets is also adjusted to enhance the diversity of generated solutions. Compared to state-of-the-art methods for the MKP and the KPFS, the proposed approach offers an implementation that can be easily extended to other variants of the knapsack problem. Computational experiments indicate that the matheuristic FSS is highly competitive to best-performing methods from the literature. The proposed approach is robust in the sense of having a good performance for a wide range of parameter values of the method.

Keywords: Metaheuristics; Multidimensional knapsack problem; Knapsack problem with forfeit sets; Fixed set search; Matheuristic (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s00291-024-00746-2

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