The 41st annual conference of the Belgian Operational Research Society (ORBEL) will take place on February 2-3, 2027 at the Faculty of Economics and Business Administration of Ghent University. Keynote speakers Our plenary speakers will be * Prof. Christoph Bergmeir, University of Granada * Prof. Merve Bodur, University of Edinburgh Contributed papers We invite researchers, practitioners, and students with an interest in operations research, data science, and related quantitative methods for decision-making to submit their work. Accepted contributions will be presented at the conference at Ghent University on 2-3 February 2027. Please note that the abstract submission deadline is earlier than in previous years. Abstract submission Authors are invited to submit an extended abstract in English, in LaTeX format, and limited to two A4 pages. The required template can be found on the conference website https://orbel2027.org/call/ Important dates * Abstract submission deadline: November 27, 2026 * Notification of acceptance: December 11, 2026 * End of early registration: December 18, 2026 * Conference: February 2-3, 2027 For more information, please visit the conference website: https://orbel2027.org/ We look forward to welcoming you in Ghent! The local organizers, Dries Benoit, Dries Goossens, Veronique Limère ********************************************************** * * Contributions to be spread via DMANET are submitted to * * DMANET@zpr.uni-koeln.de * * Replies to a message carried on DMANET should NOT be * addressed to DMANET but to the original sender. The * original sender, however, is invited to prepare an * update of the replies received and to communicate it * via DMANET. * * DISCRETE MATHEMATICS AND ALGORITHMS NETWORK (DMANET) * http://www.zaik.uni-koeln.de/AFS/publications/dmanet/ * **********************************************************