The International Journal of Fuzzy Logic and Intelligent Systems

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Vol.23 No.1, March 25, 2023 < Previous Next >

Original Article
1 867 397

Fuzzy Observer Design for State and Fault Estimation for Takagi-Sugeno Implicit Models

Manal Ouzaz, Abdellatif El Assoudi , and El Hassane El Yaagoubi
International Journal of Fuzzy Logic and Intelligent Systems 2023; 23(1): 1-10 https://doi.org/10.5391/IJFIS.2023.23.1.1
*Keywords : Discrete-time systems, Fault detection, Linear matrix inequalities, Observers, Takagi-Sugeno model

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Original Article
1 1149 450

Numerical Solution of Fuzzy Heat Equation with Complex Dirichlet Conditions

Hamzeh Zureigat, Abd Ulazeez Alkouri, Areen Al-khateeb, Eman Abuteen, and Sana Abu-Ghurra
International Journal of Fuzzy Logic and Intelligent Systems 2023; 23(1): 11-19 https://doi.org/10.5391/IJFIS.2023.23.1.11
*Keywords : Complex fuzzy sets, Finite difference methods, Fuzzy heat equations, Complex fuzzy numbers

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Original Article
1 522 230

An Application of Maximality to Nilpotent and Finitely Generated -Subgroups of an -Group

Iffat Jahan and Ananya Manas
International Journal of Fuzzy Logic and Intelligent Systems 2023; 23(1): 20-33 https://doi.org/10.5391/IJFIS.2023.23.1.20
*Keywords : L-algebra, L-subgroup, Generated L-subgroup, Normal L-subgroup, Maximal L-subgroup, Frattini L-subgroup, Finitely generated L-subgroup

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Original Article
3 795 255

Generalized Intuitionistic Fuzzy Flow Shop Scheduling Problem with Setup Time and Single Transport Facility

T. Yogashanthi, Shakeela Sathish, and K. Ganesan
International Journal of Fuzzy Logic and Intelligent Systems 2023; 23(1): 34-43 https://doi.org/10.5391/IJFIS.2023.23.1.34
*Keywords : Generalized intuitionistic fuzzy number, Flow shop scheduling, Left fuzziness index, Right fuzziness index, Euclidean distance

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Original Article
1 803 295

Uncertain Random Portfolio Optimization Based on Skew Chance Distribution

Seyyed Hamed Abtahi
International Journal of Fuzzy Logic and Intelligent Systems 2023; 23(1): 44-55 https://doi.org/10.5391/IJFIS.2023.23.1.44
*Keywords : Chance theory, Uncertain random variable, Skew chance distribution, Entropy, Portfolio optimization

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Original Article
1 501 166

Pythagorean Fuzzy Implicative/Comparative/Shift UP-Filters of UP-Algebras with Approximations

Akarachai Satirad , Ronnason Chinram , Pongpun Julath , and Aiyared Iampan
International Journal of Fuzzy Logic and Intelligent Systems 2023; 23(1): 56-78 https://doi.org/10.5391/IJFIS.2023.23.1.56
*Keywords : UP-algebra, Pythagorean fuzzy implicative UP-filter, Pythagorean fuzzy comparative UP-filter, Pythagorean fuzzy shift UP-filter

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Original Article
1 873 333

Conormal Product for Intutionistic Anti-Fuzzy Graphs

K. Kalaiarasi , L. Mahalakshmi, Nasreen Kausar, and A. B. M. Saiful Islam
International Journal of Fuzzy Logic and Intelligent Systems 2023; 23(1): 79-90 https://doi.org/10.5391/IJFIS.2023.23.1.79
*Keywords : Conormal product of IFGs, Conormal product of IAFGs, Conormal product of complete IAFGs, Conormal product of regular IAFGs, Conormal product of strong IAFGs

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Original Article
2 654 218

Type-2 Fuzzy Stochastic Transportation Problem with Gamma Distribution

Babita Chaini and Narmada Ranarahu
International Journal of Fuzzy Logic and Intelligent Systems 2023; 23(1): 91-105 https://doi.org/10.5391/IJFIS.2023.23.1.91
*Keywords : Stochastic programming, Fuzzy stochastic transportation problem, Fuzzy gamma random variables, Optimization techniques, Type 2 fuzzy set

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