Properties of fuzzy controllers: a case study

Authors

  • Viviane Leite Dias de Mattos Universidade Federal do Rio Grande
  • Leonardo da Costa Coelho

DOI:

https://doi.org/10.14808/sci.plena.2015.081306

Keywords:

quality, satisfaction, fuzzy logic, experimental design.

Abstract

This study was done to evaluate the influence of using different membership functions and different defuzzification methods in the measurement of a construct by fuzzy controllers. They are particularly suitable for measuring complex or ill-defined variables. An 2x3 full factorial experiment consider the triangular membership functions and the gaussian membership functions for fuzzification and the centroid method, the maximum method and the mean of maximum method for defuzzification. The study used 14 instruments, randomly selected at the validation sample of the model, which were analyzed in the six experimental conditions. They weren’t found evidence of the influence of these factors on the results. A complementary analysis with Cronbach coefficient identifies the mean of maximum method and the triangular membership function to obtain more reliable results.

Author Biography

Viviane Leite Dias de Mattos, Universidade Federal do Rio Grande

Possui graduação em Engenharia Civil pela Universidade Católica de Pelotas (1978), especialização em Matemática pela Universidade Federal de Pelotas (1983), especialização em Engenharia de Produção pela Universidade Federal de Santa Catarina (1995), mestrado em Engenharia de Produção pela Universidade Federal de Santa Catarina (1997) e doutorado em Engenharia de Produção pela Universidade Federal de Santa Catarina (2004). Atualmente é professora adjunta da Universidade Federal do Rio Grande, pertencendo ao Instituto de Matemática, Estatística e Física, onde leciona disciplinas de Estatística. Tem experiência na área de Probabilidade e Estatística, com ênfase em Garantia de Controle de Qualidade, atuando principalmente nos seguintes temas: qualidade, probabilidade e estatística, controle de processos, projeto de experimentos e lógica fuzzy.

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Published

2015-08-31

How to Cite

Mattos, V. L. D. de, & Coelho, L. da C. (2015). Properties of fuzzy controllers: a case study. Scientia Plena, 11(8). https://doi.org/10.14808/sci.plena.2015.081306

Issue

Vol. 11 No. 8 (2015): August/Agosto 2015

Section

VI Conferência Sul em Modelagem Computacional

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