A complex proportional assessment method for group decision making in an interval-valued intuitionistic fuzzy environment
A complex proportional assessment method for group decision making in an interval-valued intuitionistic fuzzy environment
Author(s): Seyed Hossein Razavi Hajiagha, Shide Sadat Hashemi, Edmundas Kazimieras ZavadskasSubject(s): Economy
Published by: Vilnius Gediminas Technical University
Keywords: multiple criteria decision making; uncertainty; COPRAS; interval valued intuitionistic fuzzy sets; C02; C44; G32;
Summary/Abstract: Multi-criteria decision making is an implicational field that concerns with selecting or designing the best scenarios among a finite set of scenarios based on a finite set of criteria. Different methods and techniques for handling this issue have been proposed. Complex proportional assessment is an analytical tool for solving multi-criteria decision making problems. Originally, the COPRAS method has been developed for decision making under a deterministic environment. Since uncertainty is an unavoidable property of decision making due to a lack of knowledge, this paper suggests an extended form of the COPRAS method used for group decision making problems in an uncertain environment where such uncertainty is captured through a generalized form of fuzzy sets - the so called interval valued intuitionistic fuzzy sets. An algorithmic scheme for the COPRAS-IVIF method has been introduced thus examining its application with reference to two numerical examples. It seems that the recommended framework of COPRAS-IVIF can be satisfactorily implemented in decision making problems under ambiguous and ill-defined conditions.
Journal: Technological and Economic Development of Economy
- Issue Year: 19/2013
- Issue No: 1
- Page Range: 22-37
- Page Count: 16
- Language: English