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Packing rectangles into a fixed size circular container: Constructive and metaheuristic search approaches

Bouzid, Mouaouia Cherif, Salhi, Said (2020) Packing rectangles into a fixed size circular container: Constructive and metaheuristic search approaches. European Journal of Operational Research, . ISSN 0377-2217. (doi:10.1016/j.ejor.2020.02.048) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:80655)

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We investigate the orthogonal packing of rectangular objects into a circular container of fixed radius. We propose a new constructive heuristic called pack which builds a feasible packing starting from an ordered list of rectangles. This decoding procedure is polynomial and permits to move from the permutations search space to the packings search space by means of simple combinatorial moves combined with powerful geometrical analytical forms. The pack procedure is integrated into two well known metaheuristics, namely, a variable neighbourhood search (VNS) and a simulated annealing (SA). Two variants, namely xVNS and xSA, which stand as accelerated versions of VNS and SA are also presented. The proposed methodology produces 32 new best solutions out of the 54 benchmark instances while requiring less computational effort than the state-of-the-art method. In addition, we conduct experiments on newly generated larger instances which we have made publicly available alongside their respective results obtained from the proposed metaheuristics.

Item Type: Article
DOI/Identification number: 10.1016/j.ejor.2020.02.048
Uncontrolled keywords: Rectangle packing, Fixed size circular container, Constructive heuristic, Variable neighbourhood search, Simulated annealing
Subjects: H Social Sciences
Divisions: Divisions > Kent Business School - Division > Kent Business School (do not use)
Divisions > Kent Business School - Division > Centre for Logistics and Heuristic Optimisation (do not use)
Depositing User: Said Salhi
Date Deposited: 30 Mar 2020 11:46 UTC
Last Modified: 16 Feb 2021 14:12 UTC
Resource URI: (The current URI for this page, for reference purposes)
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