LINGUISTIC LABELS BASED METHODOLOGY FOR FUZZY GROUP DECISION MAKING

Abstract

In this paper, we review our research works on gradual improvements to fuzzy group decision-making methodologies. Firstly, a single-level semi-numeric method, Le., linguistic labels representation with fuzzy sets computation, and a fully non-numeric method, Le., Linguistic labels representation with labels manipulation for solving pairwise fuzzy group decision making problems are discussed. Secondly, the extension of these methods into hierarchical semi-numeral and a hierarchical mom-numerical methods are described. Finally, the methods are verified and applied to solving some real cases of fuzzy group decision-making problems such as a waste disposal methods selection problems.