Banca de DEFESA: FERNANDA PEREIRA DOS SANTOS RODRIGUES
Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.STUDENT : FERNANDA PEREIRA DOS SANTOS RODRIGUES
DATE: 15/02/2022
TIME: 14:00
LOCAL: Videoconferência
TITLE:
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KEY WORDS:
Evolving Systems, Fuzzy Systems, Forecasting, System Identification.
PAGES: 66
BIG AREA: Outra
AREA: Multidisciplinar
SUMMARY:
This work introduces an evolving fuzzy approach constructed based on a non-supervised recursive clustering algorithm with participatory learning and multivariate Gaussian membership functions. From this approach, four models are introduced, called eFLS (evolving Fuzzy with Multivariable Gaussian Participatory Learning and Weighted Recursive Least Squares), eFMI (evolving Fuzzy with Multivariable Gaussian Participatory Learning and Multi-Innovations Recursive Weighted Least Squares), eFCE (evolving Fuzzy with Multivariable Gaussian Participatory Learning and Recursive Maximum Correntropy) and eFTLS (evolving Fuzzy with Multivariable Gaussian Participatory Learning and Recursive Weighted Total Least Squares). In the proposed approach, clusters are created using a compatibility measure and an alert mechanism. The compatibility measure is computed by Euclidian or Mahalanobis distance according to the number of samples in the cluster. Inactive clusters are excluded by an age and population based-method. Redundant clusters are merged whenever is a noticeable overlap between two clusters. The consequent parameters are updated by a recursive algorithm of Weighted Least Squares, Multi-Innovations Weighted Least Squares, Maximum Correntropy, or Weighted Total Least Squares. Finally, the performance of the models is evaluated and compared with alternative state-of-the-art models in time series forecasting and non-linear system identification problems. Computational experiments and comparisons suggest that the proposed models have superior or comparable performance to alternative models.
BANKING MEMBERS:
Presidente - ALISSON MARQUES DA SILVA
Interna - ELISANGELA MARTINS DE SA
Interno - FLAVIO VINICIUS CRUZEIRO MARTINS