- Tytuł:
- A new approach to nonlinear modelling of dynamic systems based on fuzzy rules
- Autorzy:
-
Bartczuk, Ł.
Przybył, A.
Cpałka, K. - Powiązania:
- https://bibliotekanauki.pl/articles/330372.pdf
- Data publikacji:
- 2016
- Wydawca:
- Uniwersytet Zielonogórski. Oficyna Wydawnicza
- Tematy:
-
nonlinear modelling
dynamic system
fuzzy system
interpretability of fuzzy system
evolutionary algorithm
modelowanie nieliniowe
układ dynamiczny
system rozmyty
algorytm ewolucyjny - Opis:
- For many practical weakly nonlinear systems we have their approximated linear model. Its parameters are known or can be determined by one of typical identification procedures. The model obtained using these methods well describes the main features of the system’s dynamics. However, usually it has a low accuracy, which can be a result of the omission of many secondary phenomena in its description. In this paper we propose a new approach to the modelling of weakly nonlinear dynamic systems. In this approach we assume that the model of the weakly nonlinear system is composed of two parts: a linear term and a separate nonlinear correction term. The elements of the correction term are described by fuzzy rules which are designed in such a way as to minimize the inaccuracy resulting from the use of an approximate linear model. This gives us very rich possibilities for exploring and interpreting the operation of the modelled system. An important advantage of the proposed approach is a set of new interpretability criteria of the knowledge represented by fuzzy rules. Taking them into account in the process of automatic model selection allows us to reach a compromise between the accuracy of modelling and the readability of fuzzy rules.
- Źródło:
-
International Journal of Applied Mathematics and Computer Science; 2016, 26, 3; 603-621
1641-876X
2083-8492 - Pojawia się w:
- International Journal of Applied Mathematics and Computer Science
- Dostawca treści:
- Biblioteka Nauki
Artykuł