Iranian Journal of Fuzzy Systems

Keyword Index

A

Acceptance sampling plans Design and analysis of acceptance sampling plans based on intuitionistic fuzzy linguistic terms [Volume 18, Issue 6, 2021, Pages 101-118]
Adaptive control Adaptive control design for fixed-time synchronization of fuzzy stochastic cellular neural networks with discrete and distributed delay [Volume 18, Issue 6, 2021, Pages 13-28]
Adaptive fuzzy control Robust output feedback adaptive sliding mode control for a class of uncertain nonlinear systems using robust adaptive fuzzy observer [Volume 18, Issue 1, 2021, Pages 171-183]
Aggregation operator On the properties of the fuzzy weighted average of fuzzy numbers with normalized fuzzy weights [Volume 18, Issue 4, 2021, Pages 1-17]
Appointment scheduling Developing a fuzzy programming model for improving outpatient appointment scheduling [Volume 18, Issue 4, 2021, Pages 169-184]
Archimedean copulas FGM generated archimedean copulas with concave multiplicative generators [Volume 18, Issue 2, 2021, Pages 15-29]
Artificial Intelligence Multidimensional interval type 2 epistemic fuzzy arithmetic [Volume 18, Issue 5, 2021, Pages 19-36]
Associative operation Idempotent uninorms and nullnorms on bounded posets [Volume 18, Issue 5, 2021, Pages 53-68]
Attribute selection Different classes ratio and Laplace summation operator based intuitionistic fuzzy rough attribute selection [Volume 18, Issue 6, 2021, Pages 67-82]

B

Bipolar fuzzy relation equation A new algorithm for geometric optimization with a single-term exponent constrained by bipolar fuzzy relation equations [Volume 18, Issue 1, 2021, Pages 137-150]
Bounded lattice Construction methods for triangular norms and triangular conorms on appropriate bounded lattices [Volume 18, Issue 3, 2021, Pages 81-98]

C

Caputo gH-differentiability On the fuzzy solutions of time-fractional problems [Volume 18, Issue 3, 2021, Pages 51-66]
C-continuity C-continuous fuzzy posets [Volume 18, Issue 3, 2021, Pages 67-80]
Chaos A novel fuzzy sliding mode control approach for chaotic systems [Volume 18, Issue 6, 2021, Pages 133-150]
Chattering A novel fuzzy sliding mode control approach for chaotic systems [Volume 18, Issue 6, 2021, Pages 133-150]
Choquet integral Higher order hesitant fuzzy Choquet integral operator and its application to multiple criteria decision making [Volume 18, Issue 1, 2021, Pages 1-16]
Cohen-Grossberg neural networks Synchronization of BAM Cohen--Grossberg FCNNs with mixed time delays [Volume 18, Issue 2, 2021, Pages 159-173]
Continuity Structural topology in a category [Volume 18, Issue 6, 2021, Pages 45-54]
Continuous probability-interval valued fuzzy set Continuous probability-interval valued fuzzy preference relations and its application in group decision making [Volume 18, Issue 4, 2021, Pages 185-200]
Copula End-point linear functions [Volume 18, Issue 6, 2021, Pages 1-12]
Credibilistic optimization Approximating credibilistic constraints by robust counterparts of uncertain linear inequality [Volume 18, Issue 5, 2021, Pages 37-51]
Credibility Milstein method for solving fuzzy differential equation [Volume 18, Issue 3, 2021, Pages 129-141]
Credibility-based chance-constrained modeling An interactive fuzzy programming approach for a new multi-objective multi-product oil pipeline scheduling problem [Volume 18, Issue 4, 2021, Pages 95-112]

D

Data Envelopment Analysis Uncertain network DEA models for evaluating efficiencies of Bi-echelon supply chain with asymmetric power [Volume 18, Issue 1, 2021, Pages 87-100]
Data Envelopment Analysis A credibility approach on fuzzy slacks based measure (SBM) DEA model [Volume 18, Issue 3, 2021, Pages 39-49]
Data reduction 2-set-based extended functions [Volume 18, Issue 3, 2021, Pages 13-26]
Decision making A consistency-driven approach to construction of Z-number-valued pairwise comparison matrices [Volume 18, Issue 4, 2021, Pages 37-49]
Decision support framework An advanced decision support framework to assess sustainable transport projects using a new uncertainty modeling tool: Interval-valued Pythagorean trapezoidal fuzzy numbers [Volume 18, Issue 1, 2021, Pages 53-73]
Discrete fractional calculus Interval discrete fractional calculus and its application to interval fractional difference equations [Volume 18, Issue 6, 2021, Pages 151-166]
Dynamic output feedback design Disturbance estimator based dynamic compensator design for fractional order fuzzy control systems [Volume 18, Issue 4, 2021, Pages 79-93]

E

Equivalence relation Preference implication-based approach to ranking fuzzy numbers [Volume 18, Issue 4, 2021, Pages 51-68]

F

FBAMNNs Global dissipativity of fuzzy bidirectional associative memory neural networks with proportional delays [Volume 18, Issue 2, 2021, Pages 65-80]
FGM family FGM generated archimedean copulas with concave multiplicative generators [Volume 18, Issue 2, 2021, Pages 15-29]
Financial flow Adjusting the credit sales using CVaR-based robust possibilistic programming approach [Volume 18, Issue 1, 2021, Pages 117-136]
Fixed-time synchronization Adaptive control design for fixed-time synchronization of fuzzy stochastic cellular neural networks with discrete and distributed delay [Volume 18, Issue 6, 2021, Pages 13-28]
Fractional order systems Robust stabilization of uncertain rectangular singular fractional order T-S fuzzy systems with the fractional order 0 < α < 1 [Volume 18, Issue 5, 2021, Pages 129-140]
F-transform F-transforms determined by implicators [Volume 18, Issue 4, 2021, Pages 19-36]
Fully rough programming Building fuzzy approach with linearization technique for fully rough multi-objective multi-level linear fractional programming problem [Volume 18, Issue 2, 2021, Pages 139-157]
Fuzzification A bilateral fuzzy support vector machine hybridizing the Gaussian mixture model [Volume 18, Issue 3, 2021, Pages 161-177]
Fuzzy approach Building fuzzy approach with linearization technique for fully rough multi-objective multi-level linear fractional programming problem [Volume 18, Issue 2, 2021, Pages 139-157]
Fuzzy arithmetic Multidimensional interval type 2 epistemic fuzzy arithmetic [Volume 18, Issue 5, 2021, Pages 19-36]
Fuzzy arithmetic Fuzzy arithmetic with product t-norm [Volume 18, Issue 6, 2021, Pages 185-197]
Fuzzy cellular neural networks Synchronization of BAM Cohen--Grossberg FCNNs with mixed time delays [Volume 18, Issue 2, 2021, Pages 159-173]
Fuzzy cellular neural networks Adaptive control design for fixed-time synchronization of fuzzy stochastic cellular neural networks with discrete and distributed delay [Volume 18, Issue 6, 2021, Pages 13-28]
Fuzzy classification A fuzzy approach to review-based recommendation: Design and optimization of a fuzzy classification scheme based on implicit features of textual reviews [Volume 18, Issue 6, 2021, Pages 83-99]
Fuzzy clustering Improved fuzzy clustering algorithm using adaptive particle swarm optimization for nonlinear system modeling and identification [Volume 18, Issue 3, 2021, Pages 179-196]
Fuzzy connectives The cross-migrativity equation with respect to semi-t-operators [Volume 18, Issue 1, 2021, Pages 17-33]
Fuzzy connectives Idempotent uninorms and nullnorms on bounded posets [Volume 18, Issue 5, 2021, Pages 53-68]
Fuzzy implication On the symmetric quintuple implicational method of fuzzy reasoning [Volume 18, Issue 4, 2021, Pages 113-129]
Fuzzy Inference System Using a fuzzy expert system as a decision support system to decrease time consumption in the UAST development process: A case study [Volume 18, Issue 3, 2021, Pages 27-38]
Fuzzy logic Hybrid data compression using fuzzy logic and Huffman coding in secure IOT [Volume 18, Issue 1, 2021, Pages 101-116]
Fuzzy logic A novel method for multi-objective design optimization based on fuzzy systems [Volume 18, Issue 5, 2021, Pages 181-198]
Fuzzy nonlinear difference equations Hyers-Ulam-Rassias stability of quaternion multidimensional fuzzy nonlinear difference equations with impulses [Volume 18, Issue 3, 2021, Pages 143-160]
Fuzzy number An interactive fuzzy programming approach for a new multi-objective multi-product oil pipeline scheduling problem [Volume 18, Issue 4, 2021, Pages 95-112]
Fuzzy number Hierarchical Chinese postman problem with fuzzy travel times [Volume 18, Issue 5, 2021, Pages 87-105]
Fuzzy number Calculation of centroid of high dimensional fuzzy number and application [Volume 18, Issue 6, 2021, Pages 29-44]
Fuzzy number Fuzzy arithmetic with product t-norm [Volume 18, Issue 6, 2021, Pages 185-197]
Fuzzy numbers On the properties of the fuzzy weighted average of fuzzy numbers with normalized fuzzy weights [Volume 18, Issue 4, 2021, Pages 1-17]
Fuzzy order Calculation of centroid of high dimensional fuzzy number and application [Volume 18, Issue 6, 2021, Pages 29-44]
Fuzzy partial linear model Parameter estimation in fuzzy partial univariate linear regression model with non-fuzzy inputs and triangular fuzzy outputs [Volume 18, Issue 2, 2021, Pages 51-64]
Fuzzy poset Fuzzy closure operators and their applications [Volume 18, Issue 1, 2021, Pages 75-85]
Fuzzy probabilities On the properties of the fuzzy weighted average of fuzzy numbers with normalized fuzzy weights [Volume 18, Issue 4, 2021, Pages 1-17]
Fuzzy programming Developing a fuzzy programming model for improving outpatient appointment scheduling [Volume 18, Issue 4, 2021, Pages 169-184]
Fuzzy random partial differential equations On Goursat problem for fuzzy random partial differential equations under generalized Lipschitz conditions [Volume 18, Issue 2, 2021, Pages 31-49]
Fuzzy ranking methods Hierarchical Chinese postman problem with fuzzy travel times [Volume 18, Issue 5, 2021, Pages 87-105]
Fuzzy reasoning On the symmetric quintuple implicational method of fuzzy reasoning [Volume 18, Issue 4, 2021, Pages 113-129]
Fuzzy regression A multi-attribute assessment of fuzzy regression models [Volume 18, Issue 4, 2021, Pages 131-148]
Fuzzy risk analysis A novel method for ranking generalized fuzzy numbers with two different heights and its application in fuzzy risk analysis [Volume 18, Issue 2, 2021, Pages 81-91]
Fuzzy set Sensitivity and strong sensitivity on induced dynamical systems [Volume 18, Issue 4, 2021, Pages 69-78]
Fuzzy sets Design and analysis of acceptance sampling plans based on intuitionistic fuzzy linguistic terms [Volume 18, Issue 6, 2021, Pages 101-118]
Fuzzy time-fractional differential equations On the fuzzy solutions of time-fractional problems [Volume 18, Issue 3, 2021, Pages 51-66]

G

Generalized fuzzy numbers A novel method for ranking generalized fuzzy numbers with two different heights and its application in fuzzy risk analysis [Volume 18, Issue 2, 2021, Pages 81-91]
Genetic Algorithm A novel method for multi-objective design optimization based on fuzzy systems [Volume 18, Issue 5, 2021, Pages 181-198]
G" odel fuzzy logic Fuzzy logic and enriched categories [Volume 18, Issue 3, 2021, Pages 1-11]
Granular computing Multidimensional interval type 2 epistemic fuzzy arithmetic [Volume 18, Issue 5, 2021, Pages 19-36]
Group decision making Continuous probability-interval valued fuzzy preference relations and its application in group decision making [Volume 18, Issue 4, 2021, Pages 185-200]

H

Hierarchical Chinese postman problem Hierarchical Chinese postman problem with fuzzy travel times [Volume 18, Issue 5, 2021, Pages 87-105]
Higher order hesitant fuzzy set (HOHFS) Higher order hesitant fuzzy Choquet integral operator and its application to multiple criteria decision making [Volume 18, Issue 1, 2021, Pages 1-16]
Huffman coding Hybrid data compression using fuzzy logic and Huffman coding in secure IOT [Volume 18, Issue 1, 2021, Pages 101-116]
Hyers-Ulam-Rassias stability Hyers-Ulam-Rassias stability of quaternion multidimensional fuzzy nonlinear difference equations with impulses [Volume 18, Issue 3, 2021, Pages 143-160]

I

Implicator F-transforms determined by implicators [Volume 18, Issue 4, 2021, Pages 19-36]
Improved adaptive particle swarm optimization (IAPSO) Improved fuzzy clustering algorithm using adaptive particle swarm optimization for nonlinear system modeling and identification [Volume 18, Issue 3, 2021, Pages 179-196]
Information Technology Hybrid data compression using fuzzy logic and Huffman coding in secure IOT [Volume 18, Issue 1, 2021, Pages 101-116]
Interval type-2 fuzzy sets A new comprehensive project scheduling, monitoring, and management framework based on the critical chain under interval type-2 fuzzy uncertainty [Volume 18, Issue 1, 2021, Pages 151-170]
Interval-valued differential equations On the existence of solutions to interval-valued differential equations with length constraints [Volume 18, Issue 2, 2021, Pages 1-13]
Intuitionistic fuzzy set Different classes ratio and Laplace summation operator based intuitionistic fuzzy rough attribute selection [Volume 18, Issue 6, 2021, Pages 67-82]
Intuitionistic fuzzy sets Design and analysis of acceptance sampling plans based on intuitionistic fuzzy linguistic terms [Volume 18, Issue 6, 2021, Pages 101-118]
IoT Hybrid data compression using fuzzy logic and Huffman coding in secure IOT [Volume 18, Issue 1, 2021, Pages 101-116]
Iranian Journal of Fuzzy Systems A bibliometric analysis of Iranian Journal of Fuzzy Systems (2007-2020) [Volume 18, Issue 5, 2021, Pages 1-17]

J

Jensen's inequality Jensen's inequalities for pseudo-integrals [Volume 18, Issue 3, 2021, Pages 99-109]

L

Laplace summation operator Different classes ratio and Laplace summation operator based intuitionistic fuzzy rough attribute selection [Volume 18, Issue 6, 2021, Pages 67-82]
L-fuzzifying approximation operator Topological structures induced by L-fuzzifying approximation operators [Volume 18, Issue 5, 2021, Pages 141-154]
L-fuzzy partition F-transforms determined by implicators [Volume 18, Issue 4, 2021, Pages 19-36]
L-fuzzy relation Topological structures induced by L-fuzzifying approximation operators [Volume 18, Issue 5, 2021, Pages 141-154]
L-fuzzy transformation system F-transforms determined by implicators [Volume 18, Issue 4, 2021, Pages 19-36]
Linear matrix inequality Synchronization of BAM Cohen--Grossberg FCNNs with mixed time delays [Volume 18, Issue 2, 2021, Pages 159-173]
LMIs Global dissipativity of fuzzy bidirectional associative memory neural networks with proportional delays [Volume 18, Issue 2, 2021, Pages 65-80]
L ukasiewicz fuzzy logic Fuzzy logic and enriched categories [Volume 18, Issue 3, 2021, Pages 1-11]
Lyapunov function Global dissipativity of fuzzy bidirectional associative memory neural networks with proportional delays [Volume 18, Issue 2, 2021, Pages 65-80]
Lyapunov theory Robust output feedback adaptive sliding mode control for a class of uncertain nonlinear systems using robust adaptive fuzzy observer [Volume 18, Issue 1, 2021, Pages 171-183]

M

Mathematical programming A new comprehensive project scheduling, monitoring, and management framework based on the critical chain under interval type-2 fuzzy uncertainty [Volume 18, Issue 1, 2021, Pages 151-170]
Matrix game On matrix games with 2-tuple intuitionistic fuzzy linguistic payoffs [Volume 18, Issue 4, 2021, Pages 149-167]
Matrix game A novel defuzzification approach of type-2 fuzzy variable to solving matrix games: An application to plastic ban problem [Volume 18, Issue 5, 2021, Pages 155-172]
Max-product composition A new algorithm for geometric optimization with a single-term exponent constrained by bipolar fuzzy relation equations [Volume 18, Issue 1, 2021, Pages 137-150]
Migrativity equation New results on the migrativity properties for overlap (grouping) functions and uninorms [Volume 18, Issue 3, 2021, Pages 111-128]
Milstein method Milstein method for solving fuzzy differential equation [Volume 18, Issue 3, 2021, Pages 129-141]
Multi-Attribute Decision Making (MADM) A multi-attribute assessment of fuzzy regression models [Volume 18, Issue 4, 2021, Pages 131-148]
Multi-class classification problem A novel interval-valued fuzzy multiple twin support vector machine [Volume 18, Issue 2, 2021, Pages 93-107]
Multi-criteria situation A normalized distribution mechanism under multi-criteria situations and fuzzy behavior [Volume 18, Issue 6, 2021, Pages 119-131]
Multi-objective optimization An interactive fuzzy programming approach for a new multi-objective multi-product oil pipeline scheduling problem [Volume 18, Issue 4, 2021, Pages 95-112]
Multi-objective programming Building fuzzy approach with linearization technique for fully rough multi-objective multi-level linear fractional programming problem [Volume 18, Issue 2, 2021, Pages 139-157]
Multiple Criteria Decision Making Higher order hesitant fuzzy Choquet integral operator and its application to multiple criteria decision making [Volume 18, Issue 1, 2021, Pages 1-16]
Multi-product pipeline scheduling An interactive fuzzy programming approach for a new multi-objective multi-product oil pipeline scheduling problem [Volume 18, Issue 4, 2021, Pages 95-112]

N

Nest of k-pseudo metric A new definition of fuzzy k-pseudo metric and its induced fuzzifying structures [Volume 18, Issue 6, 2021, Pages 55-66]
Networked systems (NSs) Stability and stabilization of network T-S fuzzy systems with random packet-loss for Synchronous machine [Volume 18, Issue 1, 2021, Pages 35-51]

O

Ordinal sum Construction methods for triangular norms and triangular conorms on appropriate bounded lattices [Volume 18, Issue 3, 2021, Pages 81-98]
Outlier analysis A multi-attribute assessment of fuzzy regression models [Volume 18, Issue 4, 2021, Pages 131-148]
Outliers A bilateral fuzzy support vector machine hybridizing the Gaussian mixture model [Volume 18, Issue 3, 2021, Pages 161-177]

P

Preference implication Preference implication-based approach to ranking fuzzy numbers [Volume 18, Issue 4, 2021, Pages 51-68]
Product fuzzy logic Fuzzy logic and enriched categories [Volume 18, Issue 3, 2021, Pages 1-11]
Project scheduling A new comprehensive project scheduling, monitoring, and management framework based on the critical chain under interval type-2 fuzzy uncertainty [Volume 18, Issue 1, 2021, Pages 151-170]
PROMETHEE technique Multi-criteria decision making based on q-rung orthopair fuzzy promethee approach [Volume 18, Issue 5, 2021, Pages 107-127]
Pythagorean fuzzy numbers (PFNs) A visual social network group consensus approach with minimum adjustment based on Pythagorean fuzzy set [Volume 18, Issue 6, 2021, Pages 167-183]

Q

Q-order C-continuous fuzzy posets [Volume 18, Issue 3, 2021, Pages 67-80]

R

Ranking function A novel defuzzification approach of type-2 fuzzy variable to solving matrix games: An application to plastic ban problem [Volume 18, Issue 5, 2021, Pages 155-172]
Recommender systems A fuzzy approach to review-based recommendation: Design and optimization of a fuzzy classification scheme based on implicit features of textual reviews [Volume 18, Issue 6, 2021, Pages 83-99]
Reflective subcategory Fuzzy closure operators and their applications [Volume 18, Issue 1, 2021, Pages 75-85]
Robust design A novel method for multi-objective design optimization based on fuzzy systems [Volume 18, Issue 5, 2021, Pages 181-198]
Robust estimation A multi-attribute assessment of fuzzy regression models [Volume 18, Issue 4, 2021, Pages 131-148]
Rough set Different classes ratio and Laplace summation operator based intuitionistic fuzzy rough attribute selection [Volume 18, Issue 6, 2021, Pages 67-82]
Rule weighting A fuzzy approach to review-based recommendation: Design and optimization of a fuzzy classification scheme based on implicit features of textual reviews [Volume 18, Issue 6, 2021, Pages 83-99]

S

Scott Q-cotopology C-continuous fuzzy posets [Volume 18, Issue 3, 2021, Pages 67-80]
Semicopula On homogeneity of the smallest semicopula-based universal integral in the class of pseudo-continuous semicopulas [Volume 18, Issue 5, 2021, Pages 173-180]
Semiring Jensen's inequalities for pseudo-integrals [Volume 18, Issue 3, 2021, Pages 99-109]
Separated FE/FTC A new separated fault estimator and fault-tolerant control design strategy for uncertain nonlinear systems using T-S fuzzy modeling [Volume 18, Issue 2, 2021, Pages 127-138]
Skorokhod metric Sensitivity and strong sensitivity on induced dynamical systems [Volume 18, Issue 4, 2021, Pages 69-78]
Sliding mode controller A novel fuzzy sliding mode control approach for chaotic systems [Volume 18, Issue 6, 2021, Pages 133-150]
Social network group decision making (SNGDM) A visual social network group consensus approach with minimum adjustment based on Pythagorean fuzzy set [Volume 18, Issue 6, 2021, Pages 167-183]
Soft computing Multidimensional interval type 2 epistemic fuzzy arithmetic [Volume 18, Issue 5, 2021, Pages 19-36]
Stability theory On the stability for implicit uncertain fractional integral equations with fuzzy concept [Volume 18, Issue 1, 2021, Pages 185-201]
State observer Robust output feedback adaptive sliding mode control for a class of uncertain nonlinear systems using robust adaptive fuzzy observer [Volume 18, Issue 1, 2021, Pages 171-183]
Support vector machine A bilateral fuzzy support vector machine hybridizing the Gaussian mixture model [Volume 18, Issue 3, 2021, Pages 161-177]
Synchronization Synchronization of BAM Cohen--Grossberg FCNNs with mixed time delays [Volume 18, Issue 2, 2021, Pages 159-173]

T

Takagi--Sugeno (T-S) fuzzy model A novel fuzzy sliding mode control approach for chaotic systems [Volume 18, Issue 6, 2021, Pages 133-150]
Trapezoidal fuzzy numbers Preference implication-based approach to ranking fuzzy numbers [Volume 18, Issue 4, 2021, Pages 51-68]
T-S fuzzy modeling A new separated fault estimator and fault-tolerant control design strategy for uncertain nonlinear systems using T-S fuzzy modeling [Volume 18, Issue 2, 2021, Pages 127-138]
T-S fuzzy system Stability and stabilization of network T-S fuzzy systems with random packet-loss for Synchronous machine [Volume 18, Issue 1, 2021, Pages 35-51]
T-S fuzzy systems Robust stabilization of uncertain rectangular singular fractional order T-S fuzzy systems with the fractional order 0 < α < 1 [Volume 18, Issue 5, 2021, Pages 129-140]
Type2-PCM algorithm Improved fuzzy clustering algorithm using adaptive particle swarm optimization for nonlinear system modeling and identification [Volume 18, Issue 3, 2021, Pages 179-196]
Type2-PCM-IAPSO algorithm Improved fuzzy clustering algorithm using adaptive particle swarm optimization for nonlinear system modeling and identification [Volume 18, Issue 3, 2021, Pages 179-196]

U

Uncertainty Analysis Multidimensional interval type 2 epistemic fuzzy arithmetic [Volume 18, Issue 5, 2021, Pages 19-36]
Uncertainty theory Uncertain network DEA models for evaluating efficiencies of Bi-echelon supply chain with asymmetric power [Volume 18, Issue 1, 2021, Pages 87-100]
Uncertainty theory Reliability analysis of a warm standby series-parallel system with different switches and bi-uncertain lifetimes [Volume 18, Issue 2, 2021, Pages 187-202]

V

VIKOR A multi-attribute assessment of fuzzy regression models [Volume 18, Issue 4, 2021, Pages 131-148]

Z

Zadeh's extension Sensitivity and strong sensitivity on induced dynamical systems [Volume 18, Issue 4, 2021, Pages 69-78]
Z-number A consistency-driven approach to construction of Z-number-valued pairwise comparison matrices [Volume 18, Issue 4, 2021, Pages 37-49]
Z-number-valued preference A consistency-driven approach to construction of Z-number-valued pairwise comparison matrices [Volume 18, Issue 4, 2021, Pages 37-49]