Associate Professor Dr. Velichka Traneva, Faculty of Natural Sciences, Burgas, Bulgaria. Associate Professor V. N. Traneva has a Ph.D. in Informatics from the Bulgarian Academy of Sciences, holds a Master’s degree in Finance and Mathematics, and is a professional qualification manager at Sofia University “Saint Kliment Ohridski”, Bulgaria. She is a co-author of numerous publications in area of Mathematics and Informatics taking into account uncertainty in the environment. Her interests are in the field of mathematical modelling, optimization and informatics, along with intuitionistic fuzzy sets; intercriteria analysis; decision making under uncertainty; optimal algorithms; and transportation problems.