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A Competitive Online Algorithm for Minimizing Total Weighted Completion Time on Uniform Machines

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  • Xuyang Chu
  • Jiping Tao

Abstract

We consider the classic online scheduling problem on uniform machines in the online setting where jobs arrive over time. Preemption is not allowed. The objective is to minimize total weighted completion time. An online algorithm based on the directly waiting strategy is proposed. Its competitive performance is proved to be by the idea of instance reduction, where is the fastest machine speed after being normalized by the slowest machine speed.

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  • Xuyang Chu & Jiping Tao, 2020. "A Competitive Online Algorithm for Minimizing Total Weighted Completion Time on Uniform Machines," Mathematical Problems in Engineering, Hindawi, vol. 2020, pages 1-9, April.
    • Handle: RePEc:hin:jnlmpe:7527862
    DOI: 10.1155/2020/7527862
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