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Authors: Juliano F. da Mota 1 ; Paulo H. Siqueira 2 ; Luzia V. de Souza 2 and Adriano Vitor 1

Affiliations: 1 Paraná State University and Paraná Federal University, Brazil ; 2 Paraná Federal University, Brazil

Keyword(s): Radial basis function neural networks, Evolutionary computation, Pattern classification.

Related Ontology Subjects/Areas/Topics: Artificial Intelligence ; Biomedical Engineering ; Biomedical Signal Processing ; Computational Intelligence ; Data Manipulation ; Health Engineering and Technology Applications ; Human-Computer Interaction ; Methodologies and Methods ; Neural Networks ; Neurocomputing ; Neurotechnology, Electronics and Informatics ; Pattern Recognition ; Physiological Computing Systems ; Sensor Networks ; Signal Processing ; Soft Computing ; Theory and Methods

Abstract: One of the issues of modeling a RBFNN - Radial Basis Function Neural Network consists of determining the weights of the output layer, usually represented by a rectangular matrix. The inconvenient characteristic at this stage it’s the calculation of the pseudo-inverse of the activation values matrix. This operation may become computationally expensive and cause rounding errors when the amount of variables is large or the activation values form an ill-conditioned matrix so that the model can misclassify the patterns. In our research, Genetic Algorithms for continuous variables determines the weights of the output layer of a RBNN and we’ve made a comparsion with the traditional method of pseudo-inversion. The proposed approach generates matrices of random normally distributed weights which are individuals of the population and applies the Michalewicz’s genetic operators until some stopping criteria is reached. We’ve tested four classification patterns databases and an overall mean accur acy lies in the range 91–98%, in the best case and 58–63%, in the worse case. (More)

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Paper citation in several formats:
F. da Mota, J.; H. Siqueira, P.; V. de Souza, L. and Vitor, A. (2012). TRAINING RADIAL BASIS FUNCTION NETWORKS BY GENETIC ALGORITHMS. In Proceedings of the 4th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART; ISBN 978-989-8425-95-9; ISSN 2184-433X, SciTePress, pages 373-379. DOI: 10.5220/0003751903730379

@conference{icaart12,
author={Juliano {F. da Mota}. and Paulo {H. Siqueira}. and Luzia {V. de Souza}. and Adriano Vitor.},
title={TRAINING RADIAL BASIS FUNCTION NETWORKS BY GENETIC ALGORITHMS},
booktitle={Proceedings of the 4th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART},
year={2012},
pages={373-379},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003751903730379},
isbn={978-989-8425-95-9},
issn={2184-433X},
}

TY - CONF

JO - Proceedings of the 4th International Conference on Agents and Artificial Intelligence - Volume 2: ICAART
TI - TRAINING RADIAL BASIS FUNCTION NETWORKS BY GENETIC ALGORITHMS
SN - 978-989-8425-95-9
IS - 2184-433X
AU - F. da Mota, J.
AU - H. Siqueira, P.
AU - V. de Souza, L.
AU - Vitor, A.
PY - 2012
SP - 373
EP - 379
DO - 10.5220/0003751903730379
PB - SciTePress