Generalized score functions on interval-valued intuitionistic fuzzy sets with preference parameters for different types of decision makers and their application |
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Authors: | Fangwei Zhang Jihong Chen Yuhua Zhu Ziyi Zhuang Jiaru Li |
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Affiliation: | 1.College of Transport and Communications,Shanghai Maritime University,Shanghai,China;2.School of Transportation,Southeast University,Nanjing,China;3.College of Information Engineering,Shanghai Maritime University,Shanghai,China |
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Abstract: | In this paper, the interval-valued intuitionistic fuzzy sets (IVIFSs) are studied from the viewpoint of the decision makers’ preference. Firstly, two series of principles are proposed to guide the ranking of interval-valued intuitionistic fuzzy numbers (IVIFNs), and two kinds of illustrative generalized score functions on IVIFSs are proposed according to the newly proposed principles. Secondly, two kinds of generalized score functions on IVIFSs are proposed based on decision-makers’ preference. The two generalized score functions are both of two parameters, which represent the decision makers’ attitudinal characters on the classical score values and the classical accuracy values on IVIFNs, respectively. Thirdly, two kinds of generalized score functions on IVIFSs, which are suitable for ranking IVIFNs when there is no information about the importance weights of the classical score values and accuracy values on IVIFNs, are proposed based on integral. Fourthly, three kinds of multi-criteria decision-making (MCDM) methods in interval-valued intuitionistic fuzzy setting are proposed. Finally, an example shows that when a novel generalized score function on IVIFSs is proposed, its suitable application environments should also be pointed out. |
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