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Comprehensive analysis of a new fuzzy rule interpolation method

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2 Author(s)
D. Tikk ; Dept. of Telecommun. & Telematics, Budapest Univ. of Technol. & Econ., Hungary ; P. Baranyi

The first published result in fuzzy rule interpolation was the α-cut based fuzzy rule interpolation, termed as KH fuzzy rule interpolation, originally devoted for complexity reduction. A modified version of the KH approach has been presented by Yam et al. (1999), which eliminates the subnormality problem while at the same time intending to maintain the advantageous computational properties of the original method. This paper presents a comprehensive analysis of the new method, which includes detailed comparison with the original KH fuzzy rule interpolation method concerning the explicit functions of the methods, preservation of piecewise linearity, and stability. The fuzziness of the conclusion with respect to the fuzziness of the observation is also investigated in comparison with several interpolation techniques. All these comparisons shows that the new method preserves the advantageous properties of the KH method and alleviates its most significant disadvantage, the problem of subnormality

Published in:

IEEE Transactions on Fuzzy Systems  (Volume:8 ,  Issue: 3 )