EURO 2025 Leeds
Abstract Submission

1601. Learning-augmented algorithms for robust scheduling

Invited abstract in session TA-7: Scheduling models and algorithms II, stream Scheduling and Project Management.

Tuesday, 8:30-10:00
Room: Clarendon GR.01

Authors (first author is the speaker)

1. Thomas Lidbetter
Rutgers Business School, Rutgers University
2. Spyros Angelopoulos
CNRS and Sorbonne University
3. Konstantinos Panagiotou
Maths, University of Munich

Abstract

We consider the classic single machine scheduling problem of minimizing some weighted sum of completion times of a set of jobs with given processing times. If the weights are unknown, the problem of finding a randomized scheduled to minimize the worst-case sum of completion times can be viewed as a zero-sum game between a Hider, who hides a target in one of a finite set of boxes with search times, and a Searcher who looks in the boxes one-by-one with the aim of minimizing the expected time to find the target. We consider this game in a learning-augmented setting, where a potentially erroneous prediction is given about the weights of the jobs (or location of the target). We establish tight tradeoffs between "consistency" of a policy (that is, the worst-case sum of completion times if the prediction is correct) and the "robustness" (that is, the worst-case sum of completion times regardless of the correctness of the prediction). We extend our results to the case of unreliable scheduling, where there is a given probability that when the machine attempts to process a job, it is unsuccessful.

Keywords

Status: accepted


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