Prof. Sotir Sotirov is currently a professor of electronics in the Department of Computer Systems and Technologies, the Head of the Laboratory of Intelligent Systems, and a Vice-Rector for international relations at the University of Burgas "Prof. Dr. Assen Zlatarov". He received an MSc degree in electronics and automation from the Technical University of Sofia, Bulgaria, in 1994, and a PhD degree in computer sciences from the University “Prof. Dr. Assen Zlatarov”, Burgas, Bulgaria, in 2005. In addition, he is the coordinator of the Group Intuitionistic Fuzzy Sets: Theory, Applications, and Related Topics in the European Society for Fuzzy Logic and Technology (EUSFLAT). His current research interests include intuitionistic fuzzy sets and neural network modeling.