Gioni Mexi

researcher at ZIB
doctoral candidate at TUB

📬 Contact

office Room 3101 at ZIB
e-mail mexi (at) zib.de

🎓 Academic Background

Jul 2021 M.Sc. at TUB
Mar 2019 B.Sc. in Mathematics at TUB

🔬 Research

My research interests include primal heuristics, generalization of conflict analysis techniques in mixed-integer programming, and the integration of different solver technologies.

Preprints

  1. Mexi, G., Besançon, M., Bolusani, S., Chmiela, A., Hoen, A., and Gleixner, A. (2023). Scylla: a Matrix-free Fix-propagate-and-project Heuristic for Mixed-integer Optimization. [arXiv]
    [BibTeX]
    @misc{scyllaheuristic,
  archiveprefix = {arXiv},
  eprint = {2307.03466},
  primaryclass = {math.OC},
  year = {2023},
  author = {Mexi, Gioni and Besançon, Mathieu and Bolusani, Suresh and Chmiela, Antonia and Hoen, Alexander and Gleixner, Ambros},
  title = {Scylla: a Matrix-free Fix-propagate-and-project Heuristic for Mixed-integer Optimization}
}

Conference proceedings

  1. Mexi, G., Berthold, T., Gleixner, A., and Nordström, J. (2023). Improving Conflict Analysis in MIP Solvers by Pseudo-Boolean Reasoning. Proceedings of 29th International Conference on Principles and Practice of Constraint Programming (CP 2023).
    [BibTeX]
    @inproceedings{mexi2023improving,
  year = {2023},
  booktitle = {Proceedings of 29th International Conference on Principles and Practice of Constraint Programming (CP 2023)},
  author = {Mexi, Gioni and Berthold, Timo and Gleixner, Ambros and Nordström, Jakob},
  title = {Improving Conflict Analysis in MIP Solvers by Pseudo-Boolean Reasoning}
}
  2. Hoppmann-Baum, K., Mexi, G., Burdakov, O., Casselgren, C. J., and Koch, T. (2020). Minimum Cycle Partition with Length Requirements. Proceedings of International Conference on the Integration of Constraint Programming, Artificial Intelligence, and Operations Research, 12296, 273–282. DOI: 10.1007/978-3-030-58942-4_18
    [BibTeX]
    @inproceedings{HoppmannBaumMexiBurdakovetal.2020,
  year = {2020},
  booktitle = {Proceedings of International Conference on the Integration of Constraint Programming, Artificial Intelligence, and Operations Research},
  volume = {12296},
  pages = {273-282},
  doi = {10.1007/978-3-030-58942-4_18},
  author = {Hoppmann-Baum, Kai and Mexi, Gioni and Burdakov, Oleg and Casselgren, Carl Johan and Koch, Thorsten},
  title = {Minimum Cycle Partition with Length Requirements}
}

Full articles

  1. Berthold, T., Mexi, G., and Salvagnin, D. (2023). Using Multiple Reference Vectors and Objective Scaling in the Feasibility Pump. EURO Journal on Computational Optimization, 11. DOI: 10.1016/j.ejco.2023.100066
    [BibTeX]
    @article{BertholdMexiSalvagnin2023,
  year = {2023},
  journal = {EURO Journal on Computational Optimization},
  volume = {11},
  doi = {10.1016/j.ejco.2023.100066},
  author = {Berthold, Timo and Mexi, Gioni and Salvagnin, Domenico},
  title = {Using Multiple Reference Vectors and Objective Scaling in the Feasibility Pump}
}
  2. Hoppmann-Baum, K., Burdakov, O., Mexi, G., Casselgren, C. J., and Koch, T. (2022). Length-Constrained Cycle Partition with an Application to UAV Routing. Optimization Methods and Software. DOI: 10.1080/10556788.2022.2053972
    [BibTeX]
    @article{HoppmannBaumBurdakovMexietal.2022,
  year = {2022},
  journal = {Optimization Methods and Software},
  doi = {10.1080/10556788.2022.2053972},
  author = {Hoppmann-Baum, Kai and Burdakov, Oleg and Mexi, Gioni and Casselgren, Carl Johan and Koch, Thorsten},
  title = {Length-Constrained Cycle Partition with an Application to UAV Routing}
}