The shifting bottleneck procedure for job shop scheduling
Management Science
Batching and scheduling jobs on batch and discrete processors
Operations Research
Minimizing total weighted tardiness in complex job shops
Minimizing total weighted tardiness in complex job shops
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This paper considers a complex job shop problem with reentrant flow and batch processing machines. A modified shifting bottleneck heuristic (MSB) is considered for generating machine schedules to minimize the total weighted tardiness. We observe that the MSB could produce infeasible schedules where cyclic schedules are found. A cycle elimination procedure is proposed to remove the possibility of the MSB generating cyclic schedules in the solution.