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Function Approximation Using Probabilistic Fuzzy Systems

Author

Listed:
  • van den Berg, J.H.
  • Kaymak, U.
  • Almeida e Santos Nogueira, R.J.

Abstract

We consider function approximation by fuzzy systems. Fuzzy systems are typically used for approximating deterministic functions, in which the stochastic uncertainty is ignored. We propose probabilistic fuzzy systems in which the probabilistic nature of uncertainty is taken into account. Furthermore, these systems take also fuzzy uncertainty into account by their fuzzy partitioning of input and output spaces. We discuss an additive reasoning scheme for probabilistic fuzzy systems that leads to the estimation of conditional probability densities, and prove how such fuzzy systems compute the expected value of this conditional density function. We show that some of the most commonly used fuzzy systems can compute the same expected output value and we derive how their parameters should be selected in order to achieve this goal.

Suggested Citation

  • van den Berg, J.H. & Kaymak, U. & Almeida e Santos Nogueira, R.J., 2011. "Function Approximation Using Probabilistic Fuzzy Systems," ERIM Report Series Research in Management ERS-2011-026-LIS, Erasmus Research Institute of Management (ERIM), ERIM is the joint research institute of the Rotterdam School of Management, Erasmus University and the Erasmus School of Economics (ESE) at Erasmus University Rotterdam.
  • Handle: RePEc:ems:eureri:30923
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    File URL: https://repub.eur.nl/pub/30923/ERS-2011-026-LIS.pdf
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    References listed on IDEAS

    as
    1. van den Berg, J.H. & van den Bergh, W.-M. & Kaymak, U., 2001. "Probabilistic and Statistical Fuzzy Set Foundations of Competitive Exception Learning," ERIM Report Series Research in Management ERS-2001-40-LIS, Erasmus Research Institute of Management (ERIM), ERIM is the joint research institute of the Rotterdam School of Management, Erasmus University and the Erasmus School of Economics (ESE) at Erasmus University Rotterdam.
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    More about this item

    Keywords

    additive reasoning; function approximation; fuzzy partitioning; fuzzy set; probabilistic fuzzy system;
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