Nikolaos Matsatsinis is a full Professor of Information and Decision Support Systems in the School of Production Engineering and Management of the Technical University of Crete, Greece. He is Director of Decision Support Systems Lab and former President of the Hellenic Operational Research Society (HELORS). He has contribute as scientific or project coordinator on over of fifty national and international projects. He is chief editor of Operational Research: An International Journal and International Journal of Decision Support Systems and member of the international advisory board of three scientific journals. He is the author or co-author of twenty one (21) books and over of hundred (100) articles in international scientific journals and books. He has organized and participated as member of scientific or program comities of over of eighty (80) scientific conferences and he has over of one hundred and eighty (180) presentations in international and national scientific conferences. His research interests fall into the areas of Intelligent Decision Support Systems, Recommendation Systems, Multicriteria Decision Analysis, Group Decision Making, Operational Research, Marketing, Consumer Behavior Analysis, New Product Development, Electronic Business, Business Intelligence & Analytics, Systems Engineering, Healthcare Services, Evaluation methods.