Application of neutrosophic set to multicriteria decision making by COPRAS

Abstract

The paper presents multicriteria decision making method with single value neutrosophic sets (SVNS), namely COPRAS-SVNS. The complex proportional assessment method (COPRAS) has shown accurate results for the solution of various multicriteria decision making problems in the engineering field. In this paper, a new extension of the crisp COPRAS method has been proposed. This extension is developed in the context of single value neutrosophic sets. The information processing flow has been proposed for the solution of the multicriteria decision-making problems. The proposed approach consists of the following steps: neutrosophication, solution of MCDM by the operations of the neutrosophic sets, de-neutrosophication. For the execution of the de-neutrosophication step a new version of the score function is proposed. The solution of the practical example of the selection of location for a liquefied natural gas terminal has been provided to illustrate correctness and the effectiveness of the proposed technique.