Iterative deepening A* algorithms for the container relocation problem

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Wenbin Zhu
  • Hu Qin
  • Andrew Lim
  • Huidong Zhang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number6216460
Pages (from-to)710-722
Journal / PublicationIEEE Transactions on Automation Science and Engineering
Volume9
Issue number4
Publication statusPublished - 2012

Abstract

The container relocation problem, where containers that are stored in bays are retrieved in a fixed sequence, is a crucial port operation. Existing approaches using branch and bound algorithms are only able to optimally solve small cases in a practical time frame. In this paper, we investigate iterative deepening A* algorithms (rather than branch and bound) using new lower bound measures and heuristics, and show that this approach is able to solve much larger instances of the problem in a time frame that is suitable for practical application. We also examine a more difficult variant of the problem that has been largely ignored in existing literature. © 2004-2012 IEEE.

Research Area(s)

  • Container relocation problem, Container yard operation, Iterative deepening A*

Citation Format(s)

Iterative deepening A* algorithms for the container relocation problem. / Zhu, Wenbin; Qin, Hu; Lim, Andrew et al.

In: IEEE Transactions on Automation Science and Engineering, Vol. 9, No. 4, 6216460, 2012, p. 710-722.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review