Projects
Projects as Head
Projects as Member
Publications
2024
Branch and price for the length-constrained cycle partition problem
Proceedings of INFORMS Optimization Society Conference, 2024
Mohammed Ghannam, Gioni Mexi, Edward Lam, Ambros Gleixner
BibTeX
Mexi, Gioni
Probabilistic Lookahead Strong Branching via a Stochastic Abstract Branching Model
Integration of Constraint Programming, Artificial Intelligence, and Operations Research. CPAIOR 2024, Vol.14743, Lecture Notes in Computer Science, 2024
Gioni Mexi, Somayeh Shamsi, Mathieu Besançon, Pierre Bodic
BibTeX
DOI
Mexi, Gioni
DOI
The SCIP Optimization Suite 9.0
ZIB-Report 24-02-29
Suresh Bolusani, Mathieu Besançon, Ksenia Bestuzheva, Antonia Chmiela, João Dionísio, Tim Donkiewicz, Jasper van Doornmalen, Leon Eifler, Mohammed Ghannam, Ambros Gleixner, Christoph Graczyk, Katrin Halbig, Ivo Hedtke, Alexander Hoen, Christopher Hojny, Rolf van der Hulst, Dominik Kamp, Thorsten Koch, Kevin Kofler, Jurgen Lentz, Julian Manns, Gioni Mexi, Erik Mühmer, Marc E. Pfetsch, Franziska Schlösser, Felipe Serrano, Yuji Shinano, Mark Turner, Stefan Vigerske, Dieter Weninger, Liding Xu
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Mexi, Gioni
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2023
Improving Conflict Analysis in MIP Solvers by Pseudo-Boolean Reasoning
29th International Conference on Principles and Practice of Constraint Programming (CP 2023), pp. 27:1-27:19, Vol.280, Leibniz International Proceedings in Informatics (LIPIcs), 2023
Gioni Mexi, Timo Berthold, Ambros Gleixner, Jakob Nordström
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Mexi, Gioni
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Scylla: a matrix-free fix-propagate-and-project heuristic for mixed-integer optimization
Proceedings of Conference of the Society for Operations Research in Germany, 2023
Gioni Mexi, Mathieu Besançon, Suresh Bolusani, Antonia Chmiela, Alexander Hoen, Ambros Gleixner
BibTeX
Mexi, Gioni
Using Multiple Reference Vectors and Objective Scaling in the Feasibility Pump
EURO Journal on Computational Optimization, Vol.11, 2023 (preprint available as ZIB-Report 22-14)
Timo Berthold, Gioni Mexi, Domenico Salvagnin
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Mexi, Gioni
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2022
Length-Constrained Cycle Partition with an Application to UAV Routing
Optimization Methods and Software, 2022 (preprint available as ZIB-Report 20-30)
Kai Hoppmann-Baum, Oleg Burdakov, Gioni Mexi, Carl Johan Casselgren, Thorsten Koch
PDF (ZIB-Report)
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Mexi, Gioni
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2021
New Ideas for the Feasibility Pump: Using Multiple Reference Vectors
Master's thesis, Technische Universität Berlin, Thorsten Koch, Timo Berthold (Advisors), 2021
Gioni Mexi
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Mexi, Gioni
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2020
Minimum Cycle Partition with Length Requirements
Integration of Constraint Programming, Artificial Intelligence, and Operations Research, Emmanuel Hebrard, Nysret Musliu (Eds.), Springer International Publishing: Cham, pp. 273-282, 2020, ISBN: 978-3-030-58941-7
Kai Hoppmann-Baum, Gioni Mexi, Oleg Burdakov, Carl Johan Casselgren, Thorsten Koch
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DOI
Mexi, Gioni
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Node Partitioning and Subtours Creation Problem (NPSC)
Bachelor's thesis, Technische Universität Berlin, Thorsten Koch, Kai Hoppmann (Advisors), 2020
Gioni Mexi
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Mexi, Gioni
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