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Comparison of Sugeno and Mamdani Systems

Because it is a more compact and computationally efficient representation than a Mamdani system, the Sugeno system lends itself to the use of adaptive techniques for constructing fuzzy models. These adaptive techniques can be used to customize the membership functions so that the fuzzy system best models the data.

    Note   You can use the MATLAB® command-line function mam2sug to convert a Mamdani system into a Sugeno system (not necessarily with a single output) with constant output membership functions. It uses the centroid associated with all of the output membership functions of the Mamdani system.

The following are some final considerations about the two different methods.

Advantages of the Sugeno Method

  • It is computationally efficient.

  • It works well with linear techniques (e.g., PID control).

  • It works well with optimization and adaptive techniques.

  • It has guaranteed continuity of the output surface.

  • It is well suited to mathematical analysis.

Advantages of the Mamdani Method

  • It is intuitive.

  • It has widespread acceptance.

  • It is well suited to human input.

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