Abstract
The emergence of specialized hardware, such as quantum computers and Digital/CMOS annealers, and the slowing of performance growth of general-purpose hardware raises an important question for our community: how can the high-performance, specialized solvers be used for planning and scheduling problems? In this work, we focus on the job-shop scheduling problem (JSP) and Quadratic Unconstrained Binary Optimization (QUBO) models, the mathematical formulation shared by a number of novel hardware platforms. We study two direct QUBO models of JSP and propose a novel large neighborhood search (LNS) approach, that hybridizes a QUBO model with constraint programming (CP). Empirical results show that our LNS approach significantly outperforms classical CP-based LNS methods and a mixed integer programming model, while being competitive with CP for large problem instances. This work is the first approach that we are aware of that can solve non-trivial JSPs using QUBO hardware, albeit as part of a hybrid algorithm. © 2022, Association for the Advancement of Artificial Intelligence.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the Thirty-Second International Conference on Automated Planning and Scheduling (ICAPS2022) |
| Editors | Akshat Kumar, Sylvie Thiébaux, Pradeep Varakantham, William Yeoh |
| Publisher | AAAI Press |
| Pages | 404-412 |
| Number of pages | 9 |
| Volume | 32 |
| ISBN (Print) | 978-1-57735-874-9 |
| DOIs | |
| Publication status | Published - 2022 |
| Externally published | Yes |
| Event | 32nd International Conference on Automated Planning and Scheduling, ICAPS 2022 - Virtual, Online, Singapore Duration: 13 Jun 2022 → 24 Jun 2022 |
Publication series
| Name | Proceedings International Conference on Automated Planning and Scheduling, ICAPS |
|---|---|
| Volume | 32 |
| ISSN (Print) | 2334-0835 |
| ISSN (Electronic) | 2334-0843 |
Conference
| Conference | 32nd International Conference on Automated Planning and Scheduling, ICAPS 2022 |
|---|---|
| Place | Singapore |
| City | Virtual, Online |
| Period | 13/06/22 → 24/06/22 |
Funding
The authors would like to thank Fujitsu Limited and Fu-jitsu Consulting (Canada) Incorporated for providing financial support and access to the Digital Annealer at the University of Toronto. Partial funding for this work was provided by Fujitsu Limited and the Natural Sciences and Engineering Research Council of Canada.
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