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Operational Research is the discipline that deals with the scientific preparation of decision making. It uses mathematical models, fully or partially formed in order to approach decision making problems. It supports people, businesses and organizations to make rational decisions and it is a cooperation pole between information science/technology and management.

More specifically, the Multiple Criteria Decision Making (MCDM) is a set of theories, methods and systems for the synthesis of multiple optimization criteria. Its aim is the support of real multiple criteria decisions under the certainty or uncertainty.

For his long term research and for his contribution in this particular scientific field, the professor of the University of Piraeus, Dr. Yannis Siskos received the Gold Medal of International Society on Multiple Criteria Decision Making, in August 2015.

International Recognition — Pioneer of Multiple Criteria Decision Making


Yannis Siskos studied mathematics at the University of Athens and then continued his PhD studies in Paris, where he received his PhD degree from the University of Pierre and Marie Curie (PARIS VI, 1979) in computer science and operations research with a scholarship of UNESCO. Over the three years 1981-84, he taught at the University of Paris-Dauphine, at the rank of Maitre de Conference, where he fulfilled the State PhD (Doctorat d'Etat) in management sciences. He is a professor in the field of "Science of Decision Making" since 1984, at the School of Production Engineering and Management of the Technical University of Crete and since 2001, at the Department of Informatics, University of Piraeus.

He specializes in multiple criteria decision making and in quality measurement systems. He has authored many scientific articles and books and has carried out studies for businesses and organizations both in Greece and abroad. Additionally, he has taught in the Technical Schools of Turin, Ecoles des Mines of Nancy, Arts et Metiers of Paris and at the Universities of Laval and Montreal of Canada, Aix-Marseille II, Rouen, Brussels and Cyprus as well as in the PhD programs of NTUA (National Technical University) and AUEB (Athens University of Economics and Business). He was chairman for several years at the School of Production Engineering and Management, where he founded the first laboratory of Decision Support Systems in Greece. From 1993 until 1997, he served as Vice-rector of the Technical University of Crete. Moreover, he has served as president of the Hellenic Operational Research Society (HELORS) for three years and as vice-president of the International Federation of Operational Research Societies (IFORS). He is the coordinator of the Hellenic Working Group of HELORS «Multiple Criteria Decision Making» for over twenty years. In a relevant electronic version of the Association of European Operational Research Societies—EURO, Yannis Siskos has been included among the pioneers of multiple criteria decision making worldwide. In 2005, he received the National Award and Gold Medal of the Hellenic Operational Research Society for his contribution to the progress of operational research.


Professor Yannis Siskos from the University of Piraeus has been honored with the highest distinction in his field, the Gold Medal of the International Society on Multiple Criteria Decision Making. The ceremony award was held during the 23rd International Conference on Multiple Criteria Decision Making, in Hamburg, Germany, 2-7 August 2015.

The Gold Medal (MCDM) is the highest distinction that the company offers every second year to the researchers/scientists, who contribute to the evolution of Science of Multiple Criteria Decision Making through their long term research and in particular to the development of new theories, models, methodologies and scientific applications of decisions in modern management. The Gold Medal has been awarded to 13 pioneer researchers internationally, since its establishment in 1992 and professor Yannis Siskos is the first Greek scientist to receive this medal.


Yannis Siskos, Professor, Department of Informatics, University of Piraeus.