The goal of the Journal of Fuzzy Extension and Applications (JFEA) is to help promote the advances in the development and practice of fuzzy sets and their generalization in the areas of foundations, mathematics, finance, management, economic, data analysis, decision support system, numerical methods, information systems, artificial intelligence, uncertainty and indeterminacy modeling, soft computing, granular computing, and others. The scope of the journal involves fuzzy sets extensions and applications in every branch of science and technology.
Specific topics of JFEA include, but are not limited to:
Fuzzy sets and their variants (Interval, Bipolar, ...) with applications
Type-۲ fuzzy sets and their variants with applications
L-fuzzy sets and their variants with applications
Boolean-valued fuzzy sets and their variants with applications
Flou sets and their variants with applications
Fuzzy multisets and their variants with applications
Shadowed sets and their variants with applications
Q-rung orthopair sets and their variants with applications
Bipolar-valued fuzzy sets and their variants with applications
Complex fuzzy sets and their variants with applications
Ternary fuzzy sets and their variants with applications
Dual fuzzy sets and their variants with applications
Connection number (set pair analysis) and their variants with applications
Z-numbers and their variants with applications
D- numbers and their variants with applications
Spherical fuzzy sets and their variants with applications
M–polar sets and their variants with applications
Grey sets and their variants with applications
Linguistic term sets and their variants with applications
Rough sets and their variants with applications
Soft sets and their variants with applications
Vague sets and their variants with applications
Granular computing with applications
Hesitant fuzzy sets and their variants with applications
Intuitionistic fuzzy sets and their variants with applications
Pythagorean fuzzy sets and their variants with applications