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Projects.
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Benchmarks.
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Supervision.
PhD.
Tarek Boufar (with Matthieu Basseur). Ongoing. Abstract.
Master internships.
Salma Errachidi (with Rym Guibadj). 2024. Poster.
Ibrahim El Baraghi (with Hamid Allaoui). 2024. Poster.
Mohammed Bati (with Rym Guibadj). 2023. Poster.
Badr Sadouki (with Clélia Lopez). 2021.
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Publications & Presentations.
Working Papers.
...
Journal Papers.
[Accepted] On the Phase Transition of the Euclidean Travelling Salesman Problem with Time Windows,
Omar Rifki, and Christine Solnon,
In Journal of Artificial Intelligence Research 82: 2167-2188, 2025 [link] [code].
Process mining with event attributes and transition features for care pathway modeling,
Omar Rifki, Zhihao Peng, Lionel Perrier, and Xiaolan Xie,
In International Journal of Production Research ?(?): 1-25, 2024 [link] [code].
Autonomous Ride-Sharing Service Using Graph Embedding and Dial-a-Ride Problem: Application to the Last-Mile Transit in Lyon City,
Omar Rifki,
In Mathematics 12(4): 546, 2024 [link] [code].
Online large-scale taxi assignment: Optimization and Learning,
Omar Rifki, and Thierry Garaix,
In Findings, 2023 [link] [code].
Fairness norm through social networks: A simulation approach,
Omar Rifki, Hirotaka Ono,
In Computational Social Networks 8(1): 1-6, 2021 [link] [code].
On the impact of spatio-temporal granularity of traffic conditions on the quality of pickup and delivery optimal tours,
Omar Rifki, Nicolas Chiabaut and Christine Solnon,
In Transportation Research Part E: Logistics and Transportation Review 142: 102085, 2020 [link] [pdf] [data].
The robustest clusters in the input-output networks: global CO2 emission clusters,
Omar Rifki, Hirotaka Ono, and Shigemi Kagawa,
In Journal of Economic Structures 6(1): 3, 2017 [link].
International Conferences.
Diversification through Candidate Sampling for a Non-Iterated Lin-Kernighan-Helsgaun Algorithm,
Tarek Boufar, Omar Rifki, and Matthieu Basseur,
In 25th European Conference on Evolutionary Computation in Combinatorial Optimisation (EVOCOP 2025), 2025 [pdf] [slides] [code].
Where the really hard quadratic assignment problems are: the QAP-SAT instances,
Sébastien Verel, Sarah L. Thomson, and Omar Rifki,
In 24th European Conference on Evolutionary Computation in Combinatorial Optimisation (EVOCOP 2024), 2024 [pdf] [slides] [code].
On the phase transition of the traveling salesman problem with time windows,
Omar Rifki, Thierry Garaix, Christine Solnon, and Sébastien Verel,
In Operations Research 2023 (OR 2023), 2023 [slides].
An aided decision framework based on optimisation and game theory for a green and shared vehicle routing problem,
Omar Rifki, Nicolas Danloup, Yuhan Guo, and Hamid Allaoui,
In 22nd World Congress of the International Federation of Automatic Control (IFAC 2023), 2023. [pdf] [slides].
An asymptotic approximation of the traveling salesman problem with uniform non-overlapping time windows,
Omar Rifki, Thierry Garaix, and Christine Solnon,
In 2021 IEEE 17th International Conference on Automation Science and Engineering (CASE 2021) (pp. 983-988), 2021. IEEE [pdf] [slides] [code].
Design of an autonomous ridesharing service through a graph embedding integrated dial-a-ride problem: Application to the last-mile transit in Lyon city,
Omar Rifki, Nicolas Chiabaut and Jean-Pierre Nicolas,
In 100th Meeting of the Transportation Research Board (TRB 2021), poster presentation, 2021 [pdf].
Optimal freight loading zones: A graph-theoretic approach,
Clélia Lopez, Omar Rifki and Nicolas Chiabaut,
In 9th Symposium of the European Association for Research in Transportation (hEART 2020), 2021 [pdf][slides].
On spatio-temporal granularity of optimal delivery tours,
Omar Rifki, Nicolas Chiabaut and Christine Solnon,
In 8th Symposium of the European Association for Research in Transportation (hEART 2019), 2019 [pdf][slides].
On the emergence of fairness norm via social networks: An experimental study,
Omar Rifki and Hirotaka Ono,
In 28th European Conference on Operational Research (EURO 2016), 2016 [slides].
Finding robust CO2 emission clusters in the world supply-chain networks,
Omar Rifki, Hirotaka Ono and Shigemi Kagawa,
In 26th Conference of the Pan-Pacific Association of Input-Output Studies (PAPAIOS 2015), 2015 [slides].
A hybrid approach of optimization and sampling for robust portfolio selection,
Omar Rifki and Hirotaka Ono,
In Operations Research Proceedings 2015 (OR 2015), pp. 317-324, Springer International Publishing, 2017 [link] [pdf] [slides].
Robustness analysis of evolutionary algorithms to portfolio optimization against errors in asset means,
Omar Rifki and Hirotaka Ono,
In Operations Research Proceedings 2013 (OR 2013), pp. 369-375, Springer International Publishing, 2014 [link] [pdf] [slides].
A survey of computational approaches to portfolio optimization by genetic algorithms,
Omar Rifki and Hirotaka Ono,
In 18th International Conference on Computing in Economics and Finance (CEF 2012), 2012 [pdf] [slides] (Master paper).
Other Conferences.
Échantillonnage des candidats pour une version non itérative de l'algorithme Lin-Kernighan-Helsgaun,
Tarek Boufar, Omar Rifki, and Matthieu Basseur,
In 26ème congrès annuel de la Société Française de Recherche Opérationnelle et d’Aide à la Décision (ROADEF 2025), 2025 [pdf] [slides].
Ant Colony Optimization for Optimal Process Mining in Healthcare with Event Attributes,
Omar Rifki, Zhihao Peng, Vincent Augusto, Lionel Perrier, and Xiaolan Xie,
In 25ème congrès annuel de la Société Française de Recherche Opérationnelle et d’Aide à la Décision (ROADEF 2024), 2024 [pdf] [slides].
Pilotage dynamique de transport sanitaire: Apprentissage et optimisation,
Omar Rifki, Thierry Garaix,
In 11e Conférence Francophone en Gestion et Ingénierie des Systèmes Hospitaliers (GISEH 2022), 2022 [pdf][slides].
Étude de la satisfiabilité du problème du voyageur de commerce avec fenêtres de temps,
Omar Rifki, Thierry Garaix, and Christine Solnon,
In 23ème congrès annuel de la Société Française de Recherche Opérationnelle et d'Aide à la Décision (ROADEF 2022), 2022 [pdf] [slides].
Une approximation asymptomatique du problème du voyageur de commerce avec fenêtres temporelles,
Omar Rifki, Thierry Garaix,
In 22ème congrès annuel de la Société Française de Recherche Opérationnelle et d'Aide à la Décision (ROADEF 2021), 2021 [pdf] [slides].
Impact de la granularité spatio-temporelle sur l’optimisation des tournées de livraison en ville,
Omar Rifki, Nicolas Chiabaut and Christine Solnon,
In Journées Francophones de Programmation par Contraintes (JFPC 2019), 2019 [pdf] [slides].
Robust portfolio selection through sampling and mixped strategies,
Omar Rifki and Hirotaka Ono,
In 68th Joint Conference of Electrical and Electronics Engineers in Kyushu (JCEEE Kyushu), 2015 [pdf][slides].
Maximin strategy vs Nash equilibrium for continuous games,
Omar Rifki,
In 2014 study group of Theoretical Computer Science and Operations Research Seminar, 2014 [slides].
A Java-based simulation-oriented design for robust financial portfolios,
Omar Rifki,
Poster presentation at Hakata Workshop 2014 - 4th Combinatorics Seminar of Kyushu University, 2014 [conference book].
Measuring sensitivity of evolutionary algorithms to errors in asset means for mean-variance portfolio optimization,
Omar Rifki and Hirotaka Ono,
In 66th Joint Conference of Electrical and Electronics Engineers in Kyushu (JCEEE Kyushu), 2013 [pdf].
Technical reports and posts.
Configurations urbaines et ségrégation sociale par le prisme de la modélisation,
Omar Rifki, April 2020 [link] [code].
Sur la configuration urbaine et la propagation épidémique,
Omar Rifki, April 2020 [link] [code].
Étude des mobilités sur le territoire de la vallée de la Chimie,
Omar Rifki, October 2019 [pdf] [code].
Other (arXiv).
Traveling salesman problem with time slots: Asymptotic analysis and resolution algorithm,
Omar Rifki, and Thierry Garaix,
arXiv preprint, 2303.13998, 2023 [link].
Ph.D. Thesis.
A Study on Robust Structures Discovery and its Economic Applications : Combination of Algorithm and Simulation,
Omar Rifki, 2016 [pdf].
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Referee (2020-.). EJOR (x1), COR (x1), Knowledge and Information Systems (x2), Evergreen (x1), European Transport Research Review (x1), Journal of Advanced Transportation (x1), hEART2020.
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Links. [Hirotaka Ono Laboratory] [LIRIS] [LICIT] [LAET] [CIS] [LISIC].
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Social networks. [Twitter] [ResearchGate] [Linkedin].
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