STUDYING PROPERTIES OF DENSE SCHEDULES UNDER CONDITION OF LIMITED NUMBER OF SERVICE UNITS
Abstract
There is a conjecture that for any dense schedule in the problem Om||Cmax the makespan is at
most (2− 1/m) times the makespan of the optimal schedule, where “m” is the number of machines. In the paper the conjecture is proved for m ≤ 9 аnd some other special cases.
About the Authors
G. P. VolchkovaRussian Federation
V. M. Kotov
Russian Federation
References
1. Chen, B. Approximation algorithms for three machine open shop scheduling / B. Chen, V.A. Strusevich // ORSA J. Comput. – 1993. – Vol. 5. – P. 321–326.
2. Волчкова, Г.П. К гипотезе о плотных open-shop расписаниях / Г.П. Волчкова // Вестник БГУ. Сер. 1.2. – 2004. – № 2. – С. 58–61.
3. Волчкова, Г. П. О свойстве плотных расписаний для задачи Om||Cmax / Г.П. Волчкова // Вестник БГУ. Сер. 1.2. – 2010. – № 2. – С. 127–130.
4. Open-shop dense schedules : properties and worst-case performance ratio / B. Chen [et al.] // Journal of scheduling. – 2012. – Vol. 15, no. 1. – P. 3–11.
Review
For citations:
Volchkova G.P., Kotov V.M. STUDYING PROPERTIES OF DENSE SCHEDULES UNDER CONDITION OF LIMITED NUMBER OF SERVICE UNITS. Informatics. 2015;(1):64-72. (In Russ.)