A strong conic quadratic reformulation for machine-job assignment with controllable processing times

  • Authors:
  • M. Selim AktüRk;Alper AtamtüRk;Sinan GüRel

  • Affiliations:
  • Department of Industrial Engineering, Bilkent University, 06800 Bilkent, Ankara, Turkey;Department of Industrial Engineering & Operations Research, University of California, Berkeley, CA 94720-1777, USA;Department of Industrial Engineering, Bilkent University, 06800 Bilkent, Ankara, Turkey

  • Venue:
  • Operations Research Letters
  • Year:
  • 2009

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Abstract

We describe a polynomial-size conic quadratic reformulation for a machine-job assignment problem with separable convex cost. Because the conic strengthening is based only on the objective of the problem, it can also be applied to other problems with similar cost functions. Computational results demonstrate the effectiveness of the conic reformulation.