Open shop scheduling problems with late work criteria

  • Authors:
  • Jacek Błażewicz;Erwin Pesch;Małgorzata Sterna;Frank Werner

  • Affiliations:
  • Institute of Computing Science, Poznan University of Technology, Piotrowo 3A, 60-965 Poznan, Poland;Institute of Information Systems, FB 5 - Faculty of Economics, University of Siegen, Hölderlinstr. 3, 57068 Siegen, Germany;Institute of Computing Science, Poznan University of Technology, Piotrowo 3A, 60-965 Poznan, Poland;Faculty of Mathematics, Otto-von-Guericke-University, PSF 4120, 39016 Magdeburg, Germany

  • Venue:
  • Discrete Applied Mathematics
  • Year:
  • 2004

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Abstract

The paper concerns the application of a non-classical performance measure, a late work criterion (Y, Yw), to scheduling problems. It estimates the quality of the obtained solution with regard to the duration of the late parts of tasks not taking into account the quantity of this delay. The paper provides the formal definition of the late work parameter, especially in the shop environment, together with its practical motivation. It contains general complexity studies and the results of investigating open-shop scheduling cases, i.e. two polynomial time algorithms for problems O | pmtn, ri | Yw and O2 | di = d | Y, as well as the binary NP-hardness proof for O2 | di = d | Yw.