A hybrid estimation of distribution algorithm for the offline 2D variable-sized bin packing problem

Istvan Borgulya ()
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Istvan Borgulya: University of Pecs

Central European Journal of Operations Research, 2024, vol. 32, issue 1, No 4, 45-65

Abstract: Abstract In this paper we present an evolutionary heuristic for the offline two-dimensional variable-sized bin packing problem. In this problem we have to pack a set of rectangles into two-dimensional variable-sized rectangular bins. The bins are divided into types, and the bins in different types have different sizes and possibly different weights (costs). There are (sufficiently) many bins from each type, and any rectangle fits into at least one bin-type. The goal is to pack the rectangles into the bins without overlap, parallel to the sides, so that the total area of the used bins (or total cost) is minimized. Our algorithm is a hybrid heuristic. It uses two different techniques to generate the descendants: either estimation of distribution algorithm and sampling the resulting probability model, or applying the usual operators of evolutionary algorithms (selection, mutation). To pack the rectangles into the bins the algorithm uses the strategy of randomly choosing one of two placement heuristics, that pack always only one group (one to three) of rectangles. It improves the quality of the solutions with three local search procedures. The algorithm has been tested on benchmark instances from the literature and has been compared with other heuristics and metaheuristics. Our algorithm outperformed the previously published results.

Keywords: Local search; Variable-sized bin packing; Evolutionary algorithm; EDA; Placement heuristic (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10100-023-00858-0

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