Solving rescheduling problems in heterogeneous urban railway networks using hybrid quantum-classical approach

TitleSolving rescheduling problems in heterogeneous urban railway networks using hybrid quantum-classical approach
Publication TypeJournal Article
Year of PublicationSubmitted
AuthorsKoniorczyk M, Krawiec K, Botelho L, Bešinović N, Domino K
JournalarXiv preprint
VolumearXiv:2309.06763
Date Published11/2023
Abstract

We address the applicability of hybrid quantum-classical solvers for practical railway rescheduling management problems. We build an integer linear model for the given problem and solve it with D-Wave's quantum-classical hybrid solver as well as with CPLEX for comparison. The proposed approach is demonstrated on a real-life heterogeneous urban network in Poland, including both single- and double segments and covers all the requirements posed by the operator of the network. The computational results demonstrate the readiness for application and benefits of quantum-classical hybrid solvers in the a realistic railway scenario: they yield acceptable solutions on time, which is a critical requirement in a rescheduling situation. At the same time, the obtained solutions are feasible and in sometimes suboptimal. Moreover, though they are heuristics they offer a valid alternative and most importantly, outperform classical solvers in some cases.

URLhttps://arxiv.org/abs/2309.06763

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Data aktualizacji: 14/11/2023 - 08:15; autor zmian: Krzysztof Domino (kdomino@iitis.pl)