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Abstract
The theory of interval type-2 fuzzy sets provides an intuitive and computationally feasible method of addressing uncertain and ambiguous information in decision-making fields. This paper aims to develop a prioritised interval type-2 fuzzy aggregation operator and apply it to multiple criteria decision analysis with prioritised criteria. This paper considers situations in which a relationship between the criteria exists such that a lack of satisfaction by the higher priority criteria cannot be readily compensated by the satisfaction of lower priority criteria. This paper introduces the developed prioritised interval type-2 fuzzy aggregation operator to address the problem of criteria aggregation in this environment. To demonstrate the feasibility of the proposed operator, this paper provides a multiple criteria decision-making method that uses the prioritised interval type-2 fuzzy aggregation operator, and the method is illustrated with a practical application to landfill site selection.
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Ting-Yu Chen
Ting-Yu CHEN is currently a Professor in the Graduate Institute of Business and Management and an Adjunct Professor in the Department of Industrial and Business Management at Chang Gung University in Taiwan. She received her BS degree in Transportation Engineering and Management, MS degree in Civil Engineering, and PhD degree in Traffic and Transportation from National Chiao Tung University in Taiwan. She has received a number of awards and grants. She is an Honorary Member of the Phi Tau Phi Scholastic Honor Society of Taiwan. Her current research interests include multiple criteria decision analysis, fuzzy decision-making methods and applications.