#7062. Calibrations scheduling with arbitrary lengths and activation length

January 2027publication date
Proposal available till 06-06-2025
4 total number of authors per manuscript0 $

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Journal’s subject area:
Engineering (all);
Management Science and Operations Research;
Artificial Intelligence;
Software;
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Abstract:
Bender et al. (SPAA 20XX) proposed a theoretical framework for testing in contexts where safety mistakes must be avoided. Testing in such a context is made by machines that need to be calibrated on a regular basis. Since calibrations have a non-negligible cost, it is important to study policies minimizing the total calibration cost while performing all the necessary tests. We focus on the single-machine setting, and we study the complexity status of different variants of the problem. First, we extend the model by considering that the jobs have arbitrary processing times, and we propose an optimal polynomial-time algorithm when the preemption of jobs is allowed. Then, we study the case where there are many types of calibrations with their corresponding lengths and costs. We prove that the problem becomes NP-hard for arbitrary processing times even when the preemption of the jobs is allowed. Finally, we focus on the case of unit processing time jobs, and we show that a more general problem, where the recalibration of the machine is not instantaneous, can be solved in polynomial time via dynamic programming.
Keywords:
Calibration; Dynamic programming; Scheduling

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