运筹学学报 ›› 2020, Vol. 24 ›› Issue (2): 131-144.doi: 10.15960/j.cnki.issn.1007-6093.2020.02.010

• • 上一篇    

工件具有加工位置上限最小化加权总误工量的单机排序问题

陈如冰, 原晋江*   

  1. 郑州大学数学与统计学院, 郑州 450001
  • 收稿日期:2020-02-28 发布日期:2020-06-13
  • 通讯作者: 原晋江 E-mail:yuanjj@zzu.edu.cn
  • 基金资助:
    The National Nature Science Foundation of China (Nos. 11671368, 11771406, 11971443)

Single-machine scheduling to minimize total weighted late work with positional due-indices

CHEN Rubing, YUAN Jinjiang*   

  1. School of Mathematics and Statistics, Zhengzhou University, Zhengzhou 450001, China
  • Received:2020-02-28 Published:2020-06-13
  • Supported by:
    The National Nature Science Foundation of China (Nos. 11671368, 11771406, 11971443)

摘要: 考虑工件具有加工位置上限最小化总加权误工量的单机排序问题.在此排序问题中,每个工件Jj都具有一个加工位置上限kj.也就是说,如果工件Jj是一个可行排序中的第x个工件,那么就需要满足xkj.证明了(i)当工件具有相同工期时,该排序问题是二元NP-难的并且是拟多项式时间可解的,(ii)当工件具有单位权重时,该排序问题是一元NP-难的.

关键词: 机排序, 加工位置上限, NP-难, 误工量

Abstract: We consider the single-machine scheduling problem to minimize the total weighted late work with positional due-indices. In the problem, each job Jj has a positional due-index kj. That is, if Jj is the x-th job in a feasible schedule, then it is required that xkj. In this paper, we show that (i) the problem is binary NP-hard and can be solved in pseudo-polynomial-time if all the jobs have a common due date, (ii) the problem is unary NP-hard even if all the jobs have a unit weight.

Key words: single-machine scheduling, positional due-indices, NP-hard, late work

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