Theory and Approaches of Unascertained Group Decision-Making

4DECISION-MAKING METHOD OF THREE-POINT INTERVAL NUMBER COMPARISON MATRIX

4.1 Introduction

Because of the difference of knowledge structure, judgment level, and individual preference, decision makers would probably express their judgment preference via the different structures in the process of group decision making such as utility, comparison, and other factors. Due to the complexity and uncertainty of the decision-making problem and the fuzziness of human beings’ thought, it is unrealistic to depict complex problems via the certain preference style. Some scholars focus on the uncertainty decision-making problem, and some uncertain mathematic methods such as interval number, fuzzy number, random theory, and unascertained number are widely used ...