Julien KHAMPHOUSONE

I have been a Temporary Associate Professor in combinatorial optimization at ENSIIE since December 1, 2025. I graduated from ENSIIE and the MPRO program in 2019. I hold a PhD in Operations Research from Paris Dauphine University, under the supervision of Prof. André Rossi, Dr. Sonia Toubaline, and Dr. Fabian Castaño. I worked as a postdoctoral researcher at Orange for one year, ending in 2024.

Publications

1. J. Khamphousone, F. Castaño, A. Rossi, S. Toubaline, (2025), A Resilient Variant of the Ring Star Problem. Networks, 86: 199-219. https://doi.org/10.1002/net.22285
2. J. Khamphousone, F. Castaño, A. Rossi, S. Toubaline, A survivable variant of the ring star problem, Networks. 83 (2024), 324–347. https://doi.org/10.1002/net.22193

1. J. Khamphousone, M. Bouhtou, M. Chardy, Y. Hadhbi and C. Richer. “ Analysis and Optimization of Multi-Battery Management in Telecommunications Networks Within Retail and Curtailment Electricity Markets”. In: 15th International Conference on Operations Research and Enterprise Systems (ICORES). March 2026. http://dx.doi.org/10.5220/0014151700004055
2. J. Khamphousone, F. A. Castaño Giraldo, A. Rossi, and S. Toubaline. “A robust variant of the Ring Star Problem”. In: 10th International Network Optimization Conference (INOC). June 2022. http://dx.doi.org/10.48786/inoc.2022.05

1. J. Khamphousone, M. Bouhtou, M. Chardy, and C. Richer. “ILP for optimal multi-battery management systems on SPOT and curtailment electricity markets with large temporal horizon”. In: ROADEF 2025. École nationale des ponts et chaussées. Champs-sur-Marne, France, Feb. 2025.
2. J. Khamphousone, F. A. Castaño Giraldo, A. Rossi, and S. Toubaline. “Resilient and Survivable Ring Star Problems”. In: 24e congrès annuel de la ROADEF. ROADEF. Rennes, France, Feb. 2023.
3. J. Khamphousone, F. A. Castaño Giraldo, A. Rossi, and S. Toubaline. “A robust variant of the Ring Star Problem”. In: 23e congrès annuel de la ROADEF. INSA Lyon. Villeurbanne - Lyon, France, Feb. 2022.
4. J. Khamphousone, F. A. Castano Giraldo, A. Rossi, and S. Toubaline. “Introducing the Resilient Ring Star Problem”. In: 22e congrès annuel de la ROADEF. Mulhouse, France, Apr. 2021.
5. M. Diamantini, A. Faye, and J. Khamphousone. “Calcul des dates d’atterrissage d’une séquence d’avions pour des fonctions de coût convexes et affines par morceaux”. In: 19e congrès annuel de la ROADEF. Le Havre, France, Feb. 2019

• J. Khamphousone, Two variants of the Ring Star Problem, 10th November 2023

Experience

Education

Computer Science Skills

• Python
• C, C++
• R, RStudio
• MATLAB
• Unix, Shell
• 
• Web : HTML, CSS, JS, PHP
• RDF
• Databases : SPARQL, SQL

Teaching

Interests

Apart from being an associate professor, I enjoy spending time with my friends and family, practicing sports, playing video games or board games, and listening to music. I'm also fond of my cat!