Mohammed Ghannam

My research focuses on utilizing column generation techniques (branch-and-price) to optimize vehicle routing and scheduling for logistics applications. I am also actively involved in the development of mixed-integer programming solver software.

📬 Contact

office
Room 3101 at ZIB
e-mail

🎓 Curriculum vitae

2021
M.Sc. in Computer Science at University of Bonn
2018
B.Sc. in Computer and Communications Engineering at Alexandria University

📝 Publications and preprints

Preprints

  1. Bolusani, S., Besançon, M., Bestuzheva, K., Chmiela, A., Dionísio, J., Donkiewicz, T., van Doornmalen, J., Eifler, L., Ghannam, M., Gleixner, A., Graczyk, C., Halbig, K., Hedtke, I., Hoen, A., Hojny, C., van der Hulst, R., Kamp, D., Koch, T., Kofler, K., … Xu, L. (2024). The SCIP Optimization Suite 9.0 (ZIB Report No. 24-02-29). Zuse Institute Berlin. [URL] [arXiv] [code]
    [BibTeX]
    @techreport{2024_BolusaniEtAl_Scip9,
      year = {2024},
      institution = {Zuse Institute Berlin},
      type = {ZIB Report},
      month = feb,
      number = {24-02-29},
      url = {https://nbn-resolving.org/urn:nbn:de:0297-zib-95528},
      archiveprefix = {arXiv},
      eprint = {2402.17702},
      primaryclass = {math.OC},
      author = {Bolusani, Suresh and Besançon, Mathieu and Bestuzheva, Ksenia and Chmiela, Antonia and Dionísio, João and Donkiewicz, Tim and van Doornmalen, Jasper and Eifler, Leon and Ghannam, Mohammed and Gleixner, Ambros and Graczyk, Christoph and Halbig, Katrin and Hedtke, Ivo and Hoen, Alexander and Hojny, Christopher and van der Hulst, Rolf and Kamp, Dominik and Koch, Thorsten and Kofler, Kevin and Lentz, Jurgen and Manns, Julian and Mexi, Gioni and Mühmer, Erik and Pfetsch, Marc and Schlösser, Franziska and Serrano, Felipe and Shinano, Yuji and Turner, Mark and Vigerske, Stefan and Weninger, Dieter and Xu, Liding},
      title = {The SCIP Optimization Suite 9.0},
      code = {https://scipopt.org}
    }

Conference proceedings

  1. Ghannam, M., Mexi, G., Lam, E., and Gleixner, A. (2024). Branch and Price for the Length-constrained Cycle Partition Problem. Proceedings of the INFORMS Optimization Society Conference. [URL] [arXiv]
    [BibTeX]
    @inproceedings{2024_GhannamMexiLamGleixner_Branchpricelccp,
      year = {2024},
      booktitle = {Proceedings of the INFORMS Optimization Society Conference},
      url = {https://sites.google.com/view/ios2024refereed},
      archiveprefix = {arXiv},
      eprint = {2401.17937},
      primaryclass = {math.OC},
      author = {Ghannam, Mohammed and Mexi, Gioni and Lam, Edward and Gleixner, Ambros},
      title = {Branch and Price for the Length-constrained Cycle Partition Problem}
    }
  2. Ghannam, M., and Gleixner, A. (2023). Hybrid Genetic Search for Dynamic Vehicle Routing with Time Windows. Proceedings of the Conference of the Society for Operations Research in Germany. [arXiv]
    [BibTeX]
    @inproceedings{2023_GhannamGleixner_Hybridgeneticsearch,
      year = {2023},
      booktitle = {Proceedings of the Conference of the Society for Operations Research in Germany},
      archiveprefix = {arXiv},
      eprint = {2307.11800},
      primaryclass = {cs.NE},
      author = {Ghannam, Mohammed and Gleixner, Ambros},
      title = {Hybrid Genetic Search for Dynamic Vehicle Routing with Time Windows}
    }

💬 Talks and posters

Conference and workshop talks

Branch-and-Price for the Length-constrained Cycle Partition Problem
ZIB-Siemens Workshop, Munich
Sep 2023
Branch-and-Price for the Length-constrained Cycle Partition Problem
SAP-ZIB Workshop, Walldorf
Aug 2023
Hybrid Genetic Search for Dynamic Vehicle Routing with Time Windows
OR Conference, Hamburg