Single machine parallel-batch scheduling with deteriorating jobs

  • Authors:
  • Xianglai Qi;Shiguo Zhou;Jinjiang Yuan

  • Affiliations:
  • Department of Mathematics, Zhengzhou University, Zhengzhou, Henan 450052, Peoples Republic of China;Department of Mathematics, Zhengzhou University, Zhengzhou, Henan 450052, Peoples Republic of China;Department of Mathematics, Zhengzhou University, Zhengzhou, Henan 450052, Peoples Republic of China

  • Venue:
  • Theoretical Computer Science
  • Year:
  • 2009

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Abstract

We consider several single machine parallel-batch schedulingproblems in which the processing time of a job is a linear functionof its starting time. We give a polynomial-time algorithm forminimizing the maximum cost, an O(n5) timealgorithm for minimizing the number of tardy jobs, and anO(n2) time algorithm for minimizing thetotal weighted completion time. Furthermore, we prove that theproblem for minimizing the weighted number of tardy jobs is binaryNP-hard.