scholarly journals Elliptic membership functions and the modeling uncertainty in type-2 fuzzy logic systems as applied to time series prediction

2017 ◽  
Author(s):  
Erdal Kayacan ◽  
Simon Coupland ◽  
Robert John ◽  
Mojtaba Ahmadieh Khanesar
Keyword(s):  
Time Series ◽  
Fuzzy Logic ◽  
Time Series Prediction ◽  
Membership Functions ◽  
Fuzzy Logic Systems ◽  
Modeling Uncertainty ◽  
Logic Systems

Design of back propagation optimized Nagar-Bardini structure-based interval type-2 fuzzy logic systems for fuzzy identification

2021 ◽  
pp. 014233122110066
Author(s):  
Yang Chen ◽  
Jiaxiu Yang
Keyword(s):  
Fuzzy Logic ◽  
Back Propagation ◽  
Membership Functions ◽  
Identification Problems ◽  
Fuzzy Logic Systems ◽  
Fuzzy Identification ◽  
Logic Systems ◽  
Academic Topic ◽  
Interval Type

In recent years, fuzzy identification based on system identification theory has become a hot academic topic. Interval type-2 fuzzy logic systems (IT2 FLSs) have become a rising technology. This paper designs a type of Nagar-Bardini (NB) structure-based singleton IT2 FLSs for fuzzy identification problems. The antecedents of primary membership functions of IT2 FLSs are chosen as Gaussian type-2 primary membership functions with uncertain standard deviations. Then, the back propagation algorithms are used to tune the parameters of IT2 FLSs according to the chain rule of derivation. Compared with the type-1 fuzzy logic systems, simulation studies show that the proposed IT2 FLSs can obtain better abilities of generalization for fuzzy identification problems.

Applications of type-2 fuzzy logic systems to forecasting of time-series

1999 ◽  
Vol 120 (1-4) ◽  
pp. 89-111 ◽  
Author(s):  
Nilesh N. Karnik ◽  
Jerry M. Mendel
Keyword(s):  
Time Series ◽  
Fuzzy Logic ◽  
Fuzzy Logic Systems ◽  
Logic Systems

Modeling the permeability of carbonate reservoir using type-2 fuzzy logic systems

2011 ◽  
Vol 62 (2) ◽  
pp. 147-163 ◽  
Author(s):  
Sunday Olusanya Olatunji ◽  
Ali Selamat ◽  
Abdulazeez Abdulraheem
Keyword(s):  
Fuzzy Logic ◽  
Carbonate Reservoir ◽  
Fuzzy Logic Systems ◽  
Logic Systems
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