Iranian Journal of Fuzzy Systems

A

Admissible order Interval-valued fuzzy logical connectives with respect to admissible orders [Volume 20, Issue 4, 2023, Pages 1-19]
Aggregation operators Interval-valued q-rung orthopair fuzzy integrals and their application in multi-criteria group decision making [Volume 20, Issue 7, 2023, Pages 1-26]
Aggregation operators On the distributivity property of uninorms locally internal on the boundary over noncontinuous t-(co)norms [Volume 20, Issue 4, 2023, Pages 137-152]
Argumentation Probabilistic fuzzy argumentation frameworks with finite fuzzy statuses [Volume 20, Issue 3, 2023, Pages 177-189]
Associated function The distributivity characterization of idempotent null-uninorms over two special aggregation operators [Volume 20, Issue 2, 2023, Pages 103-119]
Attitudinal Choquet integral Heuristics-based modelling of human decision process [Volume 20, Issue 3, 2023, Pages 19-30]

B

Bandler-Kohout subproduct Fuzzy implications satisfying the generalized hypothetical syllogism based on the Bandler-Kohout subproduct with semicopulas [Volume 20, Issue 1, 2023, Pages 171-183]
Bi-matrix game A new approach to solve intuitionistic fuzzy bi-matrix games involving multiple opinions [Volume 20, Issue 1, 2023, Pages 185-197]
BL-algebra A study of BL-algebras by UC-filters [Volume 20, Issue 7, 2023, Pages 145-155]
Bounded lattice A new extension of a triangular norm on a subinterval $[0,lpha]$ via an interior operator to the underlying entire bounded lattice [Volume 20, Issue 3, 2023, Pages 95-113]
Bounded lattice Methods for obtaining uninorms on some special classes of bounded lattices [Volume 20, Issue 7, 2023, Pages 111-126]

C

Caputo-Fabrizio derivative Fuzzy approximation of a fractional Lorenz system and a fractional financial crisis [Volume 20, Issue 7, 2023, Pages 27-36]
Cauchy completeness Completeness of L-quasi-uniform convergence spaces [Volume 20, Issue 2, 2023, Pages 57-67]
Cauchy pair ⊤-filter Completions of ⊤-quasi-Cauchy spaces [Volume 20, Issue 7, 2023, Pages 71-84]
Cloud model A controller design and analysis using asymmetry triangular cloud models [Volume 20, Issue 2, 2023, Pages 33-55]
Conditional distributivity Conditional distributivity of continuous triangular norms over 2-uninorms [Volume 20, Issue 2, 2023, Pages 69-82]
Consistency fuzzy set Consistency fuzzy cross entropy based VIKOR approach for multi-criteria decision making [Volume 20, Issue 4, 2023, Pages 39-56]
Continuity Quintuple intuitionistic fuzzy implications reasoning algorithms and application [Volume 20, Issue 1, 2023, Pages 153-170]
Convergence On the first-order autonomous interval-valued difference equations under gH-difference [Volume 20, Issue 2, 2023, Pages 21-32]
Copula function A new copula-based bivariate Gompertz--Makeham model and its application to COVID-19 mortality data [Volume 20, Issue 3, 2023, Pages 159-175]
Correlation measure A Hybridized Correlation Coefficient Technique and its Application in Classification Process under Intuitionistic Fuzzy Setting [Volume 20, Issue 4, 2023, Pages 103-120]
COVID-19 Designing a sustainable development model for agricultural sector under critical circumstances (COVID-19 Pandemic): A fuzzy approach [Volume 20, Issue 2, 2023, Pages 173-200]
Credibility theory Binary option pricing formulas for fuzzy financial market based on the exponential Ornstein-Uhlenbeck model [Volume 20, Issue 4, 2023, Pages 81-95]

D

Decision making Interval-valued q-rung orthopair fuzzy integrals and their application in multi-criteria group decision making [Volume 20, Issue 7, 2023, Pages 1-26]
Diaz-Metcalf type inequality Diaz-Metcalf type inequality for Sugeno and pseudo-integrals [Volume 20, Issue 3, 2023, Pages 31-41]
Distributivity equation The distributivity characterization of idempotent null-uninorms over two special aggregation operators [Volume 20, Issue 2, 2023, Pages 103-119]
Dual probabilistic linguistic term set A dual probabilistic linguistic MARCOS approach based on generalized Dombi operator for decision-making [Volume 20, Issue 2, 2023, Pages 83-102]

E

Enriched category Completeness of L-quasi-uniform convergence spaces [Volume 20, Issue 2, 2023, Pages 57-67]
Extended VIKOR method VIKOR-based group decision-making method for software quality assessment [Volume 20, Issue 1, 2023, Pages 53-70]

F

Flight schedules disruption Proper process selection during flight schedule disruption using a fuzzy multi-criteria decision-making expert system [Volume 20, Issue 2, 2023, Pages 121-133]
Fractional Lorenz system Fuzzy approximation of a fractional Lorenz system and a fractional financial crisis [Volume 20, Issue 7, 2023, Pages 27-36]
Fractional network-based epidemic model The analysis of a fractional network-based epidemic model with saturated treatment function and fuzzy transmission [Volume 20, Issue 1, 2023, Pages 1-18]
Fuzzy approximation space Generalization of rough fuzzy sets based on a fuzzy ideal [Volume 20, Issue 1, 2023, Pages 27-38]
Fuzzy connectives On the distributivity property of uninorms locally internal on the boundary over noncontinuous t-(co)norms [Volume 20, Issue 4, 2023, Pages 137-152]
Fuzzy constraints Linear optimization problem subjected to fuzzy relational equations and fuzzy constraints [Volume 20, Issue 2, 2023, Pages 1-20]
Fuzzy fractional differential inclusion On existence and stability results to fuzzy Caputo fractional differential inclusions driven by fuzzy mixed quasivariational inequalities [Volume 20, Issue 3, 2023, Pages 43-59]
Fuzzy graph Second Zagreb index for fuzzy graphs and its application in mathematical chemistry [Volume 20, Issue 1, 2023, Pages 119-136]
Fuzzy implication Fuzzy implications satisfying the generalized hypothetical syllogism based on the Bandler-Kohout subproduct with semicopulas [Volume 20, Issue 1, 2023, Pages 171-183]
Fuzzy integral Diaz-Metcalf type inequality for Sugeno and pseudo-integrals [Volume 20, Issue 3, 2023, Pages 31-41]
Fuzzy linear systems The general algebraic solution of fuzzy linear systems based on a block representation of {1}-inverses [Volume 20, Issue 3, 2023, Pages 115-126]
Fuzzy numbers Weighted approximation of fuzzy numbers by using m-n-step type fuzzy number [Volume 20, Issue 3, 2023, Pages 147-158]
Fuzzy numbers Lattice Expansion of Fuzzy Concepts [Volume 20, Issue 4, 2023, Pages 153-164]
Fuzzy reasoning Quintuple intuitionistic fuzzy implications reasoning algorithms and application [Volume 20, Issue 1, 2023, Pages 153-170]
Fuzzy relation Type-2 lattice-valued preorders: A common framework of lattice-valued preorders and various kinds of metrics [Volume 20, Issue 3, 2023, Pages 191-203]
Fuzzy relational equations Linear optimization problem subjected to fuzzy relational equations and fuzzy constraints [Volume 20, Issue 2, 2023, Pages 1-20]
Fuzzy rough set Fuzzy accompanied approximation space under fuzzy relation [Volume 20, Issue 3, 2023, Pages 75-94]
Fuzzy set A picture fuzzy distance measure and its application to pattern recognition problems [Volume 20, Issue 1, 2023, Pages 71-85]
Fuzzy sets A controller design and analysis using asymmetry triangular cloud models [Volume 20, Issue 2, 2023, Pages 33-55]
Fuzzy sets Interval-valued q-rung orthopair fuzzy integrals and their application in multi-criteria group decision making [Volume 20, Issue 7, 2023, Pages 1-26]
Fuzzy sets Fuzzy approximation of a fractional Lorenz system and a fractional financial crisis [Volume 20, Issue 7, 2023, Pages 27-36]
Fuzzy System Proper process selection during flight schedule disruption using a fuzzy multi-criteria decision-making expert system [Volume 20, Issue 2, 2023, Pages 121-133]

G

Game theory A new approach to solve intuitionistic fuzzy bi-matrix games involving multiple opinions [Volume 20, Issue 1, 2023, Pages 185-197]
Genetic Algorithm Weighted K-nearest neighbors classification based on Whale optimization algorithm [Volume 20, Issue 3, 2023, Pages 61-74]
Grouping function The distributivity characterization of idempotent null-uninorms over two special aggregation operators [Volume 20, Issue 2, 2023, Pages 103-119]
Grouping function On the modularity equation for overlap (grouping) functions and semi-t-operators [Volume 20, Issue 4, 2023, Pages 121-136]
GV-fuzzy metric Type-2 lattice-valued preorders: A common framework of lattice-valued preorders and various kinds of metrics [Volume 20, Issue 3, 2023, Pages 191-203]

H

Hesitant fuzzy linear programming Simplex algorithm for hesitant fuzzy linear programming problem with hesitant cost coefficient [Volume 20, Issue 1, 2023, Pages 137-152]
Hesitant fuzzy number Simplex algorithm for hesitant fuzzy linear programming problem with hesitant cost coefficient [Volume 20, Issue 1, 2023, Pages 137-152]
Hesitant fuzzy simplex algorithm Simplex algorithm for hesitant fuzzy linear programming problem with hesitant cost coefficient [Volume 20, Issue 1, 2023, Pages 137-152]
Hoop Radical of filters on hoops [Volume 20, Issue 7, 2023, Pages 127-143]

I

Idempotent null-uninorms The distributivity characterization of idempotent null-uninorms over two special aggregation operators [Volume 20, Issue 2, 2023, Pages 103-119]
Idempotent uninorms The distributivity characterization of idempotent null-uninorms over two special aggregation operators [Volume 20, Issue 2, 2023, Pages 103-119]
Information fusion Interval-valued q-rung orthopair fuzzy integrals and their application in multi-criteria group decision making [Volume 20, Issue 7, 2023, Pages 1-26]
Integrals over fuzzy domains Some aspects on computation of scalar valued and fuzzy valued integrals over fuzzy domains [Volume 20, Issue 3, 2023, Pages 1-17]
Interior operator A new extension of a triangular norm on a subinterval $[0,lpha]$ via an interior operator to the underlying entire bounded lattice [Volume 20, Issue 3, 2023, Pages 95-113]
Interval-valued difference equations On the first-order autonomous interval-valued difference equations under gH-difference [Volume 20, Issue 2, 2023, Pages 21-32]
Intuitionistic fuzzy numbers A new approach to solve intuitionistic fuzzy bi-matrix games involving multiple opinions [Volume 20, Issue 1, 2023, Pages 185-197]
Intuitionistic fuzzy operation New intuitionistic fuzzy operations, operators and topological structures [Volume 20, Issue 7, 2023, Pages 37-53]
Intuitionistic fuzzy pairs A Hybridized Correlation Coefficient Technique and its Application in Classification Process under Intuitionistic Fuzzy Setting [Volume 20, Issue 4, 2023, Pages 103-120]
Intuitionistic fuzzy set A picture fuzzy distance measure and its application to pattern recognition problems [Volume 20, Issue 1, 2023, Pages 71-85]
Intuitionistic fuzzy set Quintuple intuitionistic fuzzy implications reasoning algorithms and application [Volume 20, Issue 1, 2023, Pages 153-170]
Intuitionistic fuzzy set New intuitionistic fuzzy operations, operators and topological structures [Volume 20, Issue 7, 2023, Pages 37-53]
Intuitionistic fuzzy sets A Hybridized Correlation Coefficient Technique and its Application in Classification Process under Intuitionistic Fuzzy Setting [Volume 20, Issue 4, 2023, Pages 103-120]
Inverse rule base interpolation Forward and backward fuzzy rule base interpolation using fuzzy geometry [Volume 20, Issue 3, 2023, Pages 127-146]
Iran Designing a sustainable development model for agricultural sector under critical circumstances (COVID-19 Pandemic): A fuzzy approach [Volume 20, Issue 2, 2023, Pages 173-200]
IVI-octahedron averaging operator Some aggregation operators for IVI-octahedron sets and their application to MCDGM [Volume 20, Issue 2, 2023, Pages 135-149]
IVI-octahedron Bonferroni mean operator Some aggregation operators for IVI-octahedron sets and their application to MCDGM [Volume 20, Issue 2, 2023, Pages 135-149]
IVI-octahedron geometric operator Some aggregation operators for IVI-octahedron sets and their application to MCDGM [Volume 20, Issue 2, 2023, Pages 135-149]
IVI-Octahedron set Some aggregation operators for IVI-octahedron sets and their application to MCDGM [Volume 20, Issue 2, 2023, Pages 135-149]

K

Keywords: aggregation function Characterization of Bivariate Quadratic Transformations of Quasi-copulas [Volume 20, Issue 4, 2023, Pages 165-178]
K-nearest neighbors Weighted K-nearest neighbors classification based on Whale optimization algorithm [Volume 20, Issue 3, 2023, Pages 61-74]

L

Lawvere completeness Completeness of L-quasi-uniform convergence spaces [Volume 20, Issue 2, 2023, Pages 57-67]
Liu process Binary option pricing formulas for fuzzy financial market based on the exponential Ornstein-Uhlenbeck model [Volume 20, Issue 4, 2023, Pages 81-95]
L-metric space Completions of ⊤-quasi-Cauchy spaces [Volume 20, Issue 7, 2023, Pages 71-84]
L-quasi-uniform convergence space Completeness of L-quasi-uniform convergence spaces [Volume 20, Issue 2, 2023, Pages 57-67]
L-quasi-uniform space Completeness of L-quasi-uniform convergence spaces [Volume 20, Issue 2, 2023, Pages 57-67]

M

MARCOS A dual probabilistic linguistic MARCOS approach based on generalized Dombi operator for decision-making [Volume 20, Issue 2, 2023, Pages 83-102]
Medical diagnosis A picture fuzzy distance measure and its application to pattern recognition problems [Volume 20, Issue 1, 2023, Pages 71-85]
M-fuzzifying circuit map Equivalent axioms of M-fuzzifying convex matroids [Volume 20, Issue 7, 2023, Pages 101-109]
M-fuzzifying convex matroid Equivalent axioms of M-fuzzifying convex matroids [Volume 20, Issue 7, 2023, Pages 101-109]
M-fuzzifying hull operator Equivalent axioms of M-fuzzifying convex matroids [Volume 20, Issue 7, 2023, Pages 101-109]
M-fuzzifying rank function Equivalent axioms of M-fuzzifying convex matroids [Volume 20, Issue 7, 2023, Pages 101-109]
M-fuzzy family of dependent sets Equivalent axioms of M-fuzzifying convex matroids [Volume 20, Issue 7, 2023, Pages 101-109]
Modularity equation On the modularity equation for overlap (grouping) functions and semi-t-operators [Volume 20, Issue 4, 2023, Pages 121-136]
Morsi fuzzy metric Type-2 lattice-valued preorders: A common framework of lattice-valued preorders and various kinds of metrics [Volume 20, Issue 3, 2023, Pages 191-203]
Multi criteria decision making Heuristics-based modelling of human decision process [Volume 20, Issue 3, 2023, Pages 19-30]
Multi-criteria Decision Making Proper process selection during flight schedule disruption using a fuzzy multi-criteria decision-making expert system [Volume 20, Issue 2, 2023, Pages 121-133]
Multi-criteria Decision Making Consistency fuzzy cross entropy based VIKOR approach for multi-criteria decision making [Volume 20, Issue 4, 2023, Pages 39-56]

O

Option pricing Binary option pricing formulas for fuzzy financial market based on the exponential Ornstein-Uhlenbeck model [Volume 20, Issue 4, 2023, Pages 81-95]
Order On linearly ordered index sets for ordinal sums in the sense of A. H. Clifford yielding uninorms [Volume 20, Issue 2, 2023, Pages 161-166]
Ordinal sum On linearly ordered index sets for ordinal sums in the sense of A. H. Clifford yielding uninorms [Volume 20, Issue 2, 2023, Pages 161-166]
Ordinal sum A new extension of a triangular norm on a subinterval $[0,lpha]$ via an interior operator to the underlying entire bounded lattice [Volume 20, Issue 3, 2023, Pages 95-113]
Ordinal sum A note on the ordinal sum of triangular norms on bounded lattices [Volume 20, Issue 4, 2023, Pages 75-80]
Overlap function The distributivity characterization of idempotent null-uninorms over two special aggregation operators [Volume 20, Issue 2, 2023, Pages 103-119]
Overlap function On the modularity equation for overlap (grouping) functions and semi-t-operators [Volume 20, Issue 4, 2023, Pages 121-136]

P

PDC controller On the global stabilization of perturbed nonlinear fuzzy control systems [Volume 20, Issue 1, 2023, Pages 39-52]
Picture fuzzy set A picture fuzzy distance measure and its application to pattern recognition problems [Volume 20, Issue 1, 2023, Pages 71-85]
Picture fuzzy set A parametric similarity measure between picture fuzzy sets and its applications in multi-attribute decision-making [Volume 20, Issue 1, 2023, Pages 87-102]
Positive low-value relation Fuzzy accompanied approximation space under fuzzy relation [Volume 20, Issue 3, 2023, Pages 75-94]
Process capability analysis Analyzing of process capability indices under uncertain information and hesitancy by using Pythagorean fuzzy sets [Volume 20, Issue 7, 2023, Pages 85-99]
Process capability indices Analyzing of process capability indices under uncertain information and hesitancy by using Pythagorean fuzzy sets [Volume 20, Issue 7, 2023, Pages 85-99]
PSO Algorithm Linear optimization problem subjected to fuzzy relational equations and fuzzy constraints [Volume 20, Issue 2, 2023, Pages 1-20]
Pythagorean fuzzy sets Analyzing of process capability indices under uncertain information and hesitancy by using Pythagorean fuzzy sets [Volume 20, Issue 7, 2023, Pages 85-99]

Q

Quasi-overlap functions New constructions of lattice-valued quasi-overlap functions [Volume 20, Issue 1, 2023, Pages 103-117]

R

Ranking function Simplex algorithm for hesitant fuzzy linear programming problem with hesitant cost coefficient [Volume 20, Issue 1, 2023, Pages 137-152]
Ranking function Solving fully linear programming problem based on Z-numbers [Volume 20, Issue 7, 2023, Pages 157-174]
Rational Gödel logic The Craig interpolation property for rational Gödel logic [Volume 20, Issue 1, 2023, Pages 19-25]
Restricted equivalence functions Restricted equivalence functions induced from fuzzy implication functions [Volume 20, Issue 2, 2023, Pages 151-160]
Rough set Generalization of rough fuzzy sets based on a fuzzy ideal [Volume 20, Issue 1, 2023, Pages 27-38]

S

Score function Some aggregation operators for IVI-octahedron sets and their application to MCDGM [Volume 20, Issue 2, 2023, Pages 135-149]
Semicopula Fuzzy implications satisfying the generalized hypothetical syllogism based on the Bandler-Kohout subproduct with semicopulas [Volume 20, Issue 1, 2023, Pages 171-183]
Similarity measure A parametric similarity measure between picture fuzzy sets and its applications in multi-attribute decision-making [Volume 20, Issue 1, 2023, Pages 87-102]
Soft sets The bilateral fuzzy soft set and its application in multi-criteria multi-person decision making under conflict information [Volume 20, Issue 4, 2023, Pages 21-37]
Stability analysis A controller design and analysis using asymmetry triangular cloud models [Volume 20, Issue 2, 2023, Pages 33-55]
Strict-feedback multi-agent systems Distributed Adaptive Iterative Learning Exact Consensus for Nonlinear Strict-feedback Multi-agent Systems with Unknown Control Directions [Volume 20, Issue 4, 2023, Pages 57-74]

T

Takagi-Sugeno fuzzy systems On the global stabilization of perturbed nonlinear fuzzy control systems [Volume 20, Issue 1, 2023, Pages 39-52]

U

Unsupervised feature selection Unsupervised feature selection: A fuzzy multi-criteria decision-making approach [Volume 20, Issue 7, 2023, Pages 55-70]
Upper semicontinuity On existence and stability results to fuzzy Caputo fractional differential inclusions driven by fuzzy mixed quasivariational inequalities [Volume 20, Issue 3, 2023, Pages 43-59]

V

VIKOR method Consistency fuzzy cross entropy based VIKOR approach for multi-criteria decision making [Volume 20, Issue 4, 2023, Pages 39-56]

W

Whale optimization algorithm Weighted K-nearest neighbors classification based on Whale optimization algorithm [Volume 20, Issue 3, 2023, Pages 61-74]

Z

Zadeh extension principle Lattice Expansion of Fuzzy Concepts [Volume 20, Issue 4, 2023, Pages 153-164]
Z-numbers Solving fully linear programming problem based on Z-numbers [Volume 20, Issue 7, 2023, Pages 157-174]

Keyword Index

A

B

C

D

E

F

G

H

I

K

L

M

O

P

Q

R

S

T

U

V

W

Z