4.6 Article

Blockchain knowledge selection under the trapezoidal fermatean fuzzy number

Journal

SOFT COMPUTING
Volume 27, Issue 7, Pages 3601-3621

Publisher

SPRINGER
DOI: 10.1007/s00500-022-07611-w

Keywords

Blockchain knowledge; Trapezoidal fuzzy set; Aggregation operators; Multi-attribute decision making; Trapezoidal fermatean fuzzy TOPSIS technique

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This paper introduces a trapezoidal fermatean fuzzy-TOPSIS framework for addressing the uncertainties in multi-attribute group decision-making problems in real-life scenes. The framework utilizes trapezoidal fermatean fuzzy sets and an Einstein aggregation operator to model the attitudes of Blockchain knowledge. A case study is conducted to demonstrate the feasibility and effectiveness of the proposed scheme, and sensitivity and comparison analyses are performed to show the robustness and superiority of the method.
Blockchain knowledge signifies a useful fundamental knowledge to safeguard faith in transboundary transmittals for main banks and financial institutions. In the study of group decision-making, the most important issue is how to coordinate opinions from different blockchains to reach a compromise under uncertainty. To tackle uncertainties surrounding multi-attribute group decision-making (MAGDM) problems in real-life scenes, we introduce a trapezoidal fermatean fuzzy set which generalizes trapezoidal fuzzy sets and fermatean fuzzy sets. The trapezoidal fermatean fuzzy model enables the degrees of membership, abstention, and non-membership to be expressed by linguistic terms. We define the operational laws of trapezoidal fermatean fuzzy numbers, and Einstein aggregation operator based on the trapezoidal fermatean fuzzy number. This makes it more flexible and descriptive to model the attitudes of Blockchain knowledge in MAGDM applications. Since multi-input arguments are interconnected and Blockchain knowledge has a lot of options perception, we also define the TOPSIS technique to facilitate the fusion of trapezoidal fermatean fuzzy information. With the aid of the trapezoidal fermatean fuzzy-TOPSIS technique, the main goal of this research is to present a general MAGDM framework by integrating the step with the complex proportional assessment. A trapezoidal fermatean positive ideal solution always wants the maximum value of the benefit criteria and the minimum value of the cost criteria. On the other hand, the trapezoidal fermatean negative ideal solution always wants the maximum value of the cost criteria and the minimum value of the benefit criteria. An integrated trapezoidal fermatean fuzzy-TOPSIS framework is established. In the proposed decision framework, the trapezoidal fermatean fuzzy-TOPSIS method is utilized to identify the subjective weights of decision attributes, and the trapezoidal fermatean fuzzy-TOPSIS approach is used to rank alternatives. Lastly, a case study concerning blockchain knowledge assessment is presented to demonstrate that the suggested scheme is feasible and effective. Furthermore, sensitivity and comparison analyses are conducted to show the robustness and superiority of the proposed method.

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