RAIRO - Operations Research

Open Access

Slime Mould Algorithm-based mutated Chaotic Local Search for global optimization and engineering applications p. 3455

Adel Got, Djaafar Zouache, Naila Aziza Houacine and Habiba Drias

Published online: 17 November 2025

DOI: https://doi.org/10.1051/ro/2025138

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Open Access

A novel non-parameter filled function method for unconstrained global optimization p. 3487

Yingying Wang, Youlin Shang and Guanglei Sun

Published online: 17 November 2025

DOI: https://doi.org/10.1051/ro/2025135

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Open Access

The first two maximum Sombor spectral radii of bicyclic graphs p. 3549

Yanhui Zhang, Xiaoling Ma and Yangyang Wu

Published online: 08 December 2025

DOI: https://doi.org/10.1051/ro/2025075

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Open Access

Underlying mechanisms of strategy interaction between brand promotion and sales channel strategies p. 3563

Zeling Xu and Jie Wei

Published online: 08 December 2025

DOI: https://doi.org/10.1051/ro/2025110

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Open Access

The relationship between operational efficiency and financial efficiency in the shipping industry: An example from privatized ports in Türkiye p. 3601

Ebru Nur Kaya, Mevlüt Hürol Mete and Önder Belgin

Published online: 08 December 2025

DOI: https://doi.org/10.1051/ro/2025136

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Open Access

An exact algorithm for the minimum sum coloring problem on partially decomposable graphs p. 3621

Fatma Tammal and Méziane Aïder

Published online: 08 December 2025

DOI: https://doi.org/10.1051/ro/2025140

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Open Access

Metaheuristics and a matheuristic for solving the facility layout problem in the presence of alternative process plans and machine redundancy p. 3649

Mehdi A. Kamran, Maghsud Solimanpur, Reza Atefi, Nooshin Atashfeshan and Yalda Mansouri

Published online: 10 December 2025

DOI: https://doi.org/10.1051/ro/2025104

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Open Access

Characterizing path-factor uniform graphs with respect to the degree sum of non-adjacent vertices p. 3675

Ping Zhang

Published online: 10 December 2025

DOI: https://doi.org/10.1051/ro/2025148

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Open Access

An improved bi-criteria evolutionary approach for the sum coloring of graphs p. 3683

Olfa Harrabi, Jouhaina Chaouachi Siala and Hend Bouziri

Published online: 10 December 2025

DOI: https://doi.org/10.1051/ro/2025142

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