Minimizing the total weighted completion time of deteriorating jobs

  • Authors:
  • Aleksander Bachman;Adam Janiak;Mikhail Y. Kovalyov

  • Affiliations:
  • Institute of Engineering Cybernetics, Wroclaw University of Technology, Janiszewskiego 11/17, 50-372 Wroclaw, Poland;Institute of Engineering Cybernetics, Wroclaw University of Technology, Janiszewskiego 11/17, 50-372 Wroclaw, Poland;Institute of Engineering Cybernetics, National Academy of Sciences of Belarus, Surganova 6, 220012 Minsk, Belarus

  • Venue:
  • Information Processing Letters
  • Year:
  • 2002

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Abstract

The paper deals with a single machine problem of scheduling jobs with start time dependent processing times to minimize the total weighted completion time. The computational complexity of this problem was unknown for ten years. We prove that the problem is NP-hard.