1Laboratory of Statistics and Quantitative Analysis Methods, Department of Mechanical Engineering, Aristotle University of Thessaloniki, P.O. Box 461, 54124, Thessaloniki, Greece
2Department of Automation Engineering, Alexander Technological Educational Institute of Thessaloniki, P.O. Box 141, 57400, Sindos, Thessaloniki, Greece
3Centre for International Manufacturing, Institute for Manufacturing (IfM), Department of Engineering, University of Cambridge, Cambridge, CB3 0FS, United Kingdom
4Department of Engineering Technology and Industrial Distribution, Texas A&M University, College Station, TX 77843-3367, United States