The Hellenic Operational Research Society (HELORS) and the School of Production Engineering and Management of the Technical University of Crete are honored to invite you to attend the HELORS 2025: 10th International Symposium and 32nd National Conference on "Operational Research, Artificial Intelligence and Innovation for the Energy Transition", which will be held at the Technical University of Crete in Chania on November 20-22, 2025.
Scope
The purpose of the Conference is to disseminate recent scientific advances stemming from the interactions of Operational Research / Management Science (OR/MS), Artificial Intelligence, and Innovation for the Energy Transition, as well as to promote international co-operation among researchers and practitioners working in these fields.
Within the framework of the conference, a Workshop with Special Speeches and Sessions in memoriam of Vangelis Grigoroudis will be held.
Conference topics
The Conference welcomes conceptual, methodological and empirical contributions in all fields of Operational Research / Management Science (OR/MS), Artificial Intelligence and Innovation. We invite all researchers, academicians, practitioners, as well as students to participate in the Conference and present their current research in Operational Research by means of methodological tools or techniques (see on the conference website).
Call for papers
Important Dates
Abstract submission: September 14, 2025
Notification of acceptance: September 16, 2025
Early bird registration: September 21, 2025
Late registration: October 12, 2025
Full paper submission: January 25, 2026
Conference Chairs
Eleftherios Siskos
Michalis Doumpos
Constantin Zopounidis
Nikolaos Matsatsinis














