Muhammad Khan2025-11-192025-11-192019-04-12https://escholar.umt.edu.pk/handle/123456789/10781In this thesis the transformation of fuzzy rankings and hesitant fuzzy rankings into fuzzy preference relations and hesitant fuzzy preference relations is presented to evaluate the problems of group decision making. Furthermore, the similarity measures for a binary vectors is discussed and also similarity measures applied between fuzzy rankings to evaluate the level of understanding among the experts.enThesis