METHOD FOR OBTAINING THE PARAMETERS OF MEMBERSHIP FUNCTIONS OF FUZZY SETS BASED ON REAL DATA FOR AUTOMATED INFORMATION PROCESSING SYSTEMS
https://doi.org/10.21822/2073-6185-2019-46-3-79-86
Abstract
Objectives Development of a method for selecting the type of accessory function and obtaining its parameters to allow subjective personal influences in automated information processing to be excluded.
Method. Existing methods for constructing membership functions were analysed. The research was based on the methods of fuzzy logic and data analysis.
Results. A method for obtaining the parameters of membership functions of fuzzy sets using real data is suggested. It is proposed to use the data obtained from the object under study to determine the kernel of the fuzzy number, as well as derive theoretical information about the object for the carrier. Triangular, trapezoidal, bell-shaped and Gaussian membership functions are considered. The appearance of the membership function can be defined using the criterion of the relations of the kernel to the carrier of a fuzzy set. The results of calculations for obtaining the membership functions based on data on the power consumption of electric motors of different types are given.
Conclusion. The developed method can be used both in decision support systems as well as in automated systems for controlling technological processes. If necessary, the values of the criterion proposed in the article can be revised to take the values included in the set of measured real data into account or to simplify the procedure of automated processing. Further research will use the described method to obtain the terms of linguistic variables.
About the Authors
E. E. Bisyanov
Donbas State Technical University
Ukraine
Ukraine
Dr. Sci. (Economy), Cand. Sci. (Technical), Prof., Prof., Department of Specialized Computer Systems
16 Lenin Ave., LNR, Alchevsk 94204
A. A. Gutnik
Donbas State Technical University
Ukraine
Ukraine
Graduate Student Department of Specialized Computer Systems
16 Lenin Ave., LNR, Alchevsk 94204
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For citations:
Bisyanov E.E., Gutnik A.A. METHOD FOR OBTAINING THE PARAMETERS OF MEMBERSHIP FUNCTIONS OF FUZZY SETS BASED ON REAL DATA FOR AUTOMATED INFORMATION PROCESSING SYSTEMS. Herald of Dagestan State Technical University. Technical Sciences. 2019;46(3):79-86. (In Russ.) https://doi.org/10.21822/2073-6185-2019-46-3-79-86
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