Minimization of squared deviation of completion times about a common due date

  • Authors:
  • Sakib A. Mondal

  • Affiliations:
  • Software Concept Laboratory, Infosys Technologies Limited, Bangalore, India

  • Venue:
  • Computers and Operations Research
  • Year:
  • 2002

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Abstract

We discuss a non-preemptive single-machine job sequencing problem where the objective is to minimize the sum of squared deviation of completion times of jobs from a common due date. There are three versions of the problem--tightly restricted, restricted and unrestricted. Separate dynamic programming formulations have already been suggested for each of these versions, but no unified approach is available. We have proposed a pseudo-polynomial DP solution and a polynomial heuristic for general instance. Computational results show that tightly restricted instances of up to 600 jobs can be solved in less than 6 s. General instances of up to 80 jobs take less than 2s.