On Nie-Tan operator and type-reduction of interval type-2 fuzzy sets

Citation

Li J, John R, Coupland S & Kendall G (2018) On Nie-Tan operator and type-reduction of interval type-2 fuzzy sets. IEEE Transactions on Fuzzy Systems, 26 (2), pp. 1036-1039. https://doi.org/10.1109/TFUZZ.2017.2666842

Abstract
Type-reduction of type-2 fuzzy sets is considered to be a defuzzification bottleneck because of the computational complexity involved in the process of type-reduction. In this research, we prove that the closed-form Nie-Tan operator, which outputs the average of the upper and lower bounds of the footprint of uncertainty, is actually an accurate method for defuzzifing interval type-2 fuzzy sets.

Keywords
Nie-Tan operator; Interval Type-2 fuzzy sets; type-reduction; defuzzification

Journal
IEEE Transactions on Fuzzy Systems: Volume 26, Issue 2

• FINAL_VERSION.pdf