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An Improved WAGNER-WHITIN Algorithm

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Year: 2009
COI code: JR_IJIEPR-20-3_005
Paper Language: English

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Authors An Improved WAGNER-WHITIN Algorithm

  S.J. Sadjadi - Department of Industrial Engineering, Iran University of Science and Technology.Corssponding
  Mir.B.Gh. Aryanezhad - Department of Industrial Engineering, Iran University of Science and Technology.Corssponding
  H.A. Sadeghi - Department of Industrial Engineering Kurdistan University


We present an improved implementation of the Wagner-Whitin algorithm for economic lot-sizing problems based on the planninghorizon theorem and the Economic- Part-Period concept. The proposed method of this paper reduces the burden of the computations significantly in two different cases. We first assume there is no backlogging and inventory holding and set-up costs are fixed. The second model of this paper considers WWA when backlogging,inventory holding and set-up costs cannot be fixed. The preliminary results also indicate that the execution time for the proposed method is approximately linear in the number of periods in the planning-horizon.


algorithm; economic lotsizing; Wagner-Whitin algorithm

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COI code: JR_IJIEPR-20-3_005

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Sadjadi, S.J.; Mir.B.Gh. Aryanezhad & H.A. Sadeghi, 2009, An Improved WAGNER-WHITIN Algorithm, International Journal of Industrial Engineering & Production Research 20 (3), the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Sadjadi, S.J.; Mir.B.Gh. Aryanezhad & H.A. Sadeghi, 2009)
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The University/Research Center Information:
Type: state university
Paper No.: 20366
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