Theory and Approaches of Unascertained Group Decision-Making

1INTRODUCTION

1.1 Background and Purpose

The key processes of decision making include the evaluation and selection of people. Related theoretical methods are based on the subject’s cognitive activities, which reflect a speculative analysis and treatment process. Therefore, decision making often depends on decision makers’ subjective preferences; common preference structures are judgment matrix, utility value, preference ordering value, linguistic value, and so on. Because of the uncertainty of the decision-making environment, decision makers tend to express in the form of preference, such as interval numbers, fuzzy numbers, and linguistic variables. This book studies mainly group decision-making methods and group aggregation methods based on ...