A Piecewise Type-2 Fuzzy Regression Model

Narges Shafaei Bajestani1, Ali Vahidian Kamyad1, Assef Zare2
1Department of Electrical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
2Department of Electrical Engineering, Gonabad Branch, Islamic Azad University, Gonabad, Iran

Tóm tắt

The type-2 fuzzy logic system permits us to model uncertainties existing in membership functions. Accordingly, this study aims to propose a linear and a piecewise framework for an interval type-2 fuzzy regression model based on the existing possibilistic models. In this model, vagueness is minimized, under the circumstances where the h-cut of observed value is included in predicted value. In this model both primary and secondary membership function of predicted value fit the observed value. Developing the proposed model to piecewise model makes it helpful in dealing with the fluctuating data. This model, without the additional complexities, demonstrates its ability compared to previous type-2 fuzzy models.

Tài liệu tham khảo

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