1. Department of Mathematics, Aristotle University of Thessaloniki, Thessaloniki, Greece
2. State Key Laboratory of Synthetical Automation for Process Industries, Northeastern University, Shenyang, People's Republic of China
3. Department of Electrical and Computer Engineering, Hellenic Mediteranean University, Iraklion, Greece
4. Institute of Intelligent Manufacturing, Nanjing Tech University, Nanjing, People's Republic of China