运筹学学报 ›› 2013, Vol. 17 ›› Issue (1): 38-43.

• 运筹学 • 上一篇    下一篇

带批运输的两台同型机排序问题的改进算法

汪磊扬1,刘朝晖1   

  1. 1. 华东理工大学数学系
  • 出版日期:2013-03-15 发布日期:2013-03-15
  • 通讯作者: 刘朝晖 E-mail:zhliu@ecust.edu.cn
  • 基金资助:

    国家自然科学基金资助项目(No. 11171106)

An improved algorithm for scheduling two identical machines with batch delivery consideration

 WANG Leiyang1, LIU Zhaohui1   

  1. 1. Department of Mathematics, East China University of Science and Technology
  • Online:2013-03-15 Published:2013-03-15

摘要: 研究带批运输的两台同型机排序问题. 在该问题中,工件在两台同型机上加工,完工的工件由一辆容量为z的车运输到客户. 这里假设工件有不同的物理大小,目标是求一个时间表使得所有工件送达客户且车回到机器所在位置的时间最小,给出了一个(14/9+ε)-近似算法

关键词: 排序, 批运输, 近似算法

Abstract:  In this paper we consider the  scheduling problem on two identical (parallel) machines in which the finished jobs need to be delivered to a customer in batches by single vehicle.  The goal is to minimize the makespan, i.e., the time by which the vehicle has delivered the last job and returned to the machines. We assume that the jobs have different sizes, and give an approximation algorithm with the worst-case performance ratio(14/9+ε).

Key words: scheduling, batch delivery, approximation algorithm