LIPIcs.IPEC.2023.38.pdf
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PACE Solver Description: Touiouidth
Authors
Gaétan Berthe 
,
Alexander Dobler ,
Laure Morelle ,
Amadeus Reinald ,
Mathis Rocton
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Volume:
18th International Symposium on Parameterized and Exact Computation (IPEC 2023)
Series: Leibniz International Proceedings in Informatics (LIPIcs)
Conference: International Symposium on Parameterized and Exact Computation (IPEC) - License:
Creative Commons Attribution 4.0 International license
- Publication Date: 2023-12-13
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Gaétan Berthe, Yoann Coudert-Osmont, Alexander Dobler, Laure Morelle, Amadeus Reinald, and Mathis Rocton. PACE Solver Description: Touiouidth. In 18th International Symposium on Parameterized and Exact Computation (IPEC 2023). Leibniz International Proceedings in Informatics (LIPIcs), Volume 285, pp. 38:1-38:4, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)
https://doi.org/10.4230/LIPIcs.IPEC.2023.38
Abstract
We describe Touiouidth, a twin-width solver for the exact-track of the 2023 PACE Challenge: Twin Width. Our solver is based on a simple branch and bound algorithm with search space reductions and is implemented in C++.
Subject Classification
ACM Subject Classification
- Theory of computation → Graph algorithms analysis
- Theory of computation → Parameterized complexity and exact algorithms
Keywords
- Twinwidth
- Pace Challenge
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References
- Pierre Bergé, Édouard Bonnet, and Hugues Déprés. Deciding Twin-Width at Most 4 Is NP-Complete. In Mikołaj Bojańczyk, Emanuela Merelli, and David P. Woodruff, editors, Proc. International Colloquium on Automata, Languages, and Programming (ICALP 2022), volume 229 of Leibniz International Proceedings in Informatics (LIPIcs), pages 18:1-18:20, Dagstuhl, Germany, 2022. Schloss Dagstuhl - Leibniz-Zentrum für Informatik. URL: https://doi.org/10.4230/LIPIcs.ICALP.2022.18.
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Édouard Bonnet, Eun Jung Kim, Amadeus Reinald, Stéphan Thomassé, and Rémi Watrigant. Twin-width and polynomial kernels. Algorithmica, 84(11):3300-3337, 2022.
- Édouard Bonnet, Eun Jung Kim, Stéphan Thomassé, and Rémi Watrigant. Twin-width I: tractable FO model checking. J. ACM, 69(1):3:1-3:46, 2022. URL: https://doi.org/10.1145/3486655.
- André Schidler and Stefan Szeider. A SAT approach to twin-width. In Cynthia A. Phillips and Bettina Speckmann, editors, Proc. Symposium on Algorithm Engineering and Experiments (ALENEX 2022), pages 67-77. SIAM, 2022. URL: https://doi.org/10.1137/1.9781611977042.6.