Datum / čas
Date(s) - 07.05.
15:00 - 16:00
Kategorie
Scheduling seminar: Single-machine hierarchical scheduling with release dates and preemption to minimize the total completion time and a regular criterion
[Presenter]
Rubing Chen
(Zhengzhou Uni.)
[Invited by]
Michael Pinedo
(New York Uni)
[Invited by]
Zdeněk Hanzálek
(CTU in Prague)
When: 7 May, 3PM
Where: Online HERE
Abstract: In this talk, we consider the single-machine hierarchical scheduling problems with release dates and preemption, where the primary criterion is the total completion time and the secondary criterion is an arbitrarily regular scheduling criterion, which is of either the sum-form or the max-form. We aim to find a feasible preemptive schedule that minimizes the secondary criterion, subject to the condition that the primary criterion is minimized. We show that the variants of the problems under study are polynomially solvable. To address these problems, we establish some hereditary properties for the feasible schedules and instances, and present a complete description of the feasible schedules through some elaborately constructed job-permutations.