A Heuristic Column Generation Approach for the Stochastic Bin Packing Problem

Research output: Contribution to book/Conference proceedings/Anthology/ReportConference contributionContributedpeer-review

Contributors

Abstract

The stochastic bin packing problem (SBPP) is an extension of the well-studied classical bin packing problem with respect to imperfect information on the item sizes. From a practical point of view, the latter are typically represented by (stochastically independent) normally distributed random variables with given means and variances. In this scenario, the SBPP requires to determine the minimum number of bins needed to pack all the items, with the risk of overloading a bin not exceeding a certain tolerable limit. Such computations are of high relevance in server consolidation applications, where decisions have to be made before witnessing the true item characteristics. The resulting integer optimization problems are generally nonlinear and therefore difficult to solve. For this reason, previous approaches from the literature can only handle small instance sizes exactly. In this work, we present a column generation algorithm using heuristic information and near-optimal solutions of the associated (challenging) pricing problems. Based on numerical tests, we show that in most cases this heuristic approach already leads to an optimal solution, so that much larger instance sizes can now be dealt with in reasonable time.

Details

Original languageEnglish
Title of host publicationOperations Research Proceedings 2022
EditorsOliver Grothe, Stefan Nickel, Steffen Rebennack, Oliver Stein
PublisherSpringer, Cham
Pages131-138
Number of pages8
ISBN (electronic)978-3-031-24907-5
ISBN (print)978-3-031-24906-8, 978-3-031-24961-7
Publication statusPublished - 2023
Peer-reviewedYes

Publication series

SeriesLecture Notes in Operations Research
ISSN2731-040X

External IDs

ORCID /0000-0003-0953-3367/work/146644217
Scopus 85212501110

Keywords

Keywords

  • Column generation, Cutting and packing, Heuristics, Normal distribution, Stochastic bin packing problem