5th International Conference on Fuzzy Systems and Knowledge Discovery (FSKD'08) , 2008-10-18

Title : ( Enhanced Interval Type-2 Fuzzy Logic Systems with Improved the Output Processing Using Uncertainty Bounds )

Authors: Babak Rezaee Khabooshan ,

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It is known that type-2 fuzzy sets let us to model and to minimize the effects of uncertainties in rule-based fuzzy logic system (FLS). While a type-2 FLS has the capability to model more complex relationships, the output of a type-2 fuzzy inference engine needs to be type-reduced. As type-reduction is very computationally intensive, type-2 FLSs may not be suitable for certain real-time applications. This paper aims at developing more computationally efficient output processing consists of type-reduction followed by defuzzification. The type-reduced set is approximated by linear combinations of the inner- and outer-bound sets for the type-reduced set and also the crisp output of type-2 FLS is computed by another. Parameters of these functions are determined during the training phase. By this approach type-2 FLSs can handle such uncertainties in a better way because they provide us with more parameters and more design degrees of freedom. Simulation is presented to demonstrate that the proposed type-reducing and defuzzification algorithms have lower computational cost and better performances than the Karnik-Mendel and Wu-Mendel algorithms.

Keywords

, Interval Type, 2 Fuzzy Logic Systems;Output Processing; Uncertainty
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@inproceedings{paperid:1035838,
author = {Rezaee Khabooshan, Babak},
title = {Enhanced Interval Type-2 Fuzzy Logic Systems with Improved the Output Processing Using Uncertainty Bounds},
booktitle = {5th International Conference on Fuzzy Systems and Knowledge Discovery (FSKD'08)},
year = {2008},
location = {Jinan},
keywords = {Interval Type-2 Fuzzy Logic Systems;Output Processing; Uncertainty Bounds},
}

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%0 Conference Proceedings
%T Enhanced Interval Type-2 Fuzzy Logic Systems with Improved the Output Processing Using Uncertainty Bounds
%A Rezaee Khabooshan, Babak
%J 5th International Conference on Fuzzy Systems and Knowledge Discovery (FSKD'08)
%D 2008

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