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The variable-width strip packing problem

Author

Listed:
  • Attila Bódis

    (University of Szeged)

  • János Csirik

    (University of Szeged)

Abstract

Here, we focus on a generalized version of the strip packing problem; namely we have several open-end strips with different widths, and we wish to pack rectangular items into these strips without overlapping such that we have to minimize either the makespan (i.e. the top of the topmost item), or the total area used. We investigate the online variant of the problem, where the items are arriving one-by-one, and we have to make irrevocable decisions on their packing. A similar framework was proposed by Ye and Mei (On-line scheduling of parallel jobs in heterogeneous multiple clusters. Frontiers in algorithmics and algorithmic aspects in information and management, Springer, Berlin, pp 139–148, 2012. https://doi.org/10.1007/978-3-642-29700-7_13 ) for scheduling models, and they studied the absolute competitive ratio of their algorithm. Our contribution is to define a new objective function and several algorithms by combining so-called shelf algorithms with techniques taken from the areas of the variable-sized bin packing problem and scheduling. We analyzed the asymptotic competitive ratio of our algorithms.

Suggested Citation

  • Attila Bódis & János Csirik, 2022. "The variable-width strip packing problem," Central European Journal of Operations Research, Springer;Slovak Society for Operations Research;Hungarian Operational Research Society;Czech Society for Operations Research;Österr. Gesellschaft für Operations Research (ÖGOR);Slovenian Society Informatika - Section for Operational Research;Croatian Operational Research Society, vol. 30(4), pages 1337-1351, December.
  • Handle: RePEc:spr:cejnor:v:30:y:2022:i:4:d:10.1007_s10100-021-00772-3
    DOI: 10.1007/s10100-021-00772-3
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