A note on “A novel defuzzification approach of type-2 fuzzy variable to solving matrix games: An application to plastic ban problem”

Document Type : Research Paper

Authors

1 Department of Mathematics, Thapar Institute of Engineering and Technology, Patiala, Punjab, India

2 Department of Mathematics, Thapar Institute of Engineering and Technology Patiala

3 Department of Mathematics, Thapar Institute of Engineering and Technology, Patiala, Punjab

Abstract

Seikh et al. (Iranian Journal of Fuzzy Systems, 18(5) (2021), 155-172) pointed out that there does not exist any approach to solve type-2 fuzzy variable matrix games (matrix games in which each element of the payoff matrix is represented by a type-2 fuzzy variable). To fill this gap, Seikh et al. proposed an approach to solve triangular type-2 fuzzy variable (TT2FV) matrix games (matrix games in which each element of the payoff matrix is represented by a TT2FV). Seikh et al. also solved a real-life TT2FV matrix game (plastic ban problem) to show the applicability of their proposed approach. In future, other researchers may use Seikh et al.’s approach to solve other real-life TT2FV matrix games. However, it is inappropriate to use Seikh et al.’s approach as it may fail to find a correct optimal solution of TT2FV matrix games. To validate this claim, a TT2FV matrix game is solved by Seikh et al.’s approach and it is shown that the obtained optimal solution is not correct. Also, it is pointed out that this inappropriateness occurs as a mathematically incorrect result is considered in Seikh et al.’s approach. Furthermore, Seikh et al.’s approach is modified to resolve its inappropriateness.

Keywords

Main Subjects

References

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Iranian Journal of Fuzzy Systems
Volume 21, Issue 4
July and August 2024
Pages 35-47

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