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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Investigating the Recoverable Robust Single Machine Scheduling Problem Under Interval Uncertainty
AU - Bold, Matthew
AU - Goerigk, Marc
PY - 2022/5/31
Y1 - 2022/5/31
N2 - We investigate the recoverable robust single machine scheduling problem under interval uncertainty. In this setting, jobs have first-stage processing times p and second-stage processing times q and we aim to find a first-stage and second-stage schedule with a minimum combined sum of completion times, such that at least \Delta jobs share the same position in both schedules.We provide positive complexity results for some important special cases of this problem, as well as derive a 2-approximation algorithm to the full problem. Computational experiments examine the performance of an exact mixed-integer programming formulation and the approximation algorithm, and demonstrate the strength of a proposed polynomial time greedy heuristic.
AB - We investigate the recoverable robust single machine scheduling problem under interval uncertainty. In this setting, jobs have first-stage processing times p and second-stage processing times q and we aim to find a first-stage and second-stage schedule with a minimum combined sum of completion times, such that at least \Delta jobs share the same position in both schedules.We provide positive complexity results for some important special cases of this problem, as well as derive a 2-approximation algorithm to the full problem. Computational experiments examine the performance of an exact mixed-integer programming formulation and the approximation algorithm, and demonstrate the strength of a proposed polynomial time greedy heuristic.
KW - Scheduling
KW - Optimisation under uncertainty
KW - Recoverable robustness
U2 - 10.1016/j.dam.2022.02.005
DO - 10.1016/j.dam.2022.02.005
M3 - Journal article
VL - 313
SP - 99
EP - 114
JO - Discrete Applied Mathematics
JF - Discrete Applied Mathematics
SN - 0166-218X
ER -