Konstantinos PaparrizosKonstantinos Paparrizos is a Professor in the Department of Applied Informatics, University of Macedonia Economic and Social Sciences, Greece, Thessaloniki. He received his MSc and PhD in Operations Research from the Case Western Reserve University, SA. His research interests include mathematical programming, network optimization, algorithm analysis, and data structures. He is a member of INFORMS, and the Mathematical Programming Society. He has served as a member of the Editorial Board of the Operational research. An international Journal, and also as a Chairman of the 18th Pan-Hellenic Operational Research Conference. He has conducted research in many Greek and EU funded projects and he also has a number of papers published in international conferences and international scientific journals like the Computers & Operations Research, INFORMS Transactions on Education, European Journal of Operations Research, and Yugoslav Journal of Operations Research. Read More Read Less