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Mexi, Gioni

Gioni Mexi

Contact

Position
Staff
Room
3101
Phone
+49 30 84185-577
Email
mexi@zib.de
Website
http://iol.zib.de/gionimexi
Division
Mathematical Algorithmic Intelligence
Department
AI in Society, Science, and Technology
Group
Interactive Optimization and Learning

Projects

Projects as Head

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MODAL-SynLab

A major aim of the Research Campus MODAL is the development and use of mathematical synergies between the individual labs of the network. In this context, the fields of...

MODAL-SynLab
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Solving Supply Chain Management Problems

Supply Chain Management (SCM) deals with the combination of procurement, production, storage, transport, and delivery of commodities. These problems occur in many...

Solving Supply Chain Management Problems

Projects as Member

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Solving Supply Chain Management Problems

Supply Chain Management (SCM) deals with the combination of procurement, production, storage, transport, and delivery of commodities. These problems occur in many...

Solving Supply Chain Management Problems

Publications

2025
Sparsity-driven Aggregation of Mixed Integer Programs 23rd International Symposium on Experimental Algorithms (SEA 2025), pp. 27:1-27:15, Vol.338, Leibniz International Proceedings in Informatics (LIPIcs), 2025 Liding Xu, Gioni Mexi, Ksenia Bestuzheva BibTeX
DOI
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
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
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 PDF
BibTeX
URN
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 BibTeX
DOI
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
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 PDF (ZIB-Report)
BibTeX
URN
DOI
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)
BibTeX
DOI
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 PDF
BibTeX
URN
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 BibTeX
DOI
Node Partitioning and Subtours Creation Problem (NPSC) Bachelor's thesis, Technische Universität Berlin, Thorsten Koch, Kai Hoppmann (Advisors), 2020 Gioni Mexi PDF
BibTeX
URN

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