Abstract
Intuitionistic fuzzy (IF) point operators transform an intuitionistic fuzzy set to a fuzzy set, or an intuitionistic fuzzy set with a smaller degree of hesitance. The purpose of which is to empower the operations of intuitionistic fuzzy sets with traditional fuzzy set methodologies. In the present paper, a new IF point operator is proposed. Different from the existing IF point operators, the new approach includes two parametric functions with respect to the number of iterations. It is proved that the newly proposed method could be degenerated to the traditional IF point operators. Meanwhile, the new IF point operator can extend our horizons in the exploration of the relationship between fuzzy sets and intuitionistic fuzzy sets. Specifically, a special case of the new IF point operator would be entitled as the memoryless multi-stage voting method, with which the decision makers are assumed to be affected only by the outcomes of the latest round of voting. It is proved that the memoryless multi-stage voting method converges to the limit produced by the infinite number of iterations much faster than the traditional voting method. Furthermore, a numerical example is employed to demonstrate the validity and performance of the memoryless multi-stage voting approach.
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The author is grateful for the financial support partly from the NSF Project (No. 51305400) of China, and from the NSF Project (No. LQ12G01008) of Zhejiang Province.
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Pei, Z. Multi-attribute decision making based on a novel IF point operator. Fuzzy Optim Decis Making 16, 505–524 (2017). https://doi.org/10.1007/s10700-016-9255-7
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DOI: https://doi.org/10.1007/s10700-016-9255-7