A flowshop scheduling algorithm to minimize total weighted completion time with m machines

A flowshop scheduling algorithm to minimize total weighted completion time with m machines

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Article ID: iaor20041591
Country: China
Volume: 6
Issue: 4
Start Page Number: 50
End Page Number: 56
Publication Date: Nov 2002
Journal: OR Transactions
Authors: , ,
Keywords: flowshop
Abstract:

We consider the problem of minimizing the total weighted completion time in a flowshop. We present a heuristic algorithm and show its worst-case bound. For m=2, if jobs have agreeable weights i.e. where pi<pj implies wi=wj,(i,j=1, 2,…n), the worst-case bound is 2β/(α+β), where α and β denote the minimum and maximum processing time of all operations. Furthermore, we analyze two special cases for m=2, and polynomial algorithms are given.

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