Multilayer Perceptron and Evolutionary Radial Basis Function Neural Network Models for Discrimination of HIV-1 Genomes

2018 ◽  
Vol 115 (11) ◽  
pp. 2063 ◽  
Author(s):  
Ashok Kumar Dwivedi ◽  
Usha Chouhan
2011 ◽  
Vol 403-408 ◽  
pp. 3587-3593
Author(s):  
T.V.K. Hanumantha Rao ◽  
Saurabh Mishra ◽  
Sudhir Kumar Singh

In this paper, the artificial neural network method was used for Electrocardiogram (ECG) pattern analysis. The analysis of the ECG can benefit from the wide availability of computing technology as far as features and performances as well. This paper presents some results achieved by carrying out the classification tasks by integrating the most common features of ECG analysis. Four types of ECG patterns were chosen from the MIT-BIH database to be recognized, including normal sinus rhythm, long term atrial fibrillation, sudden cardiac death and congestive heart failure. The R-R interval features were performed as the characteristic representation of the original ECG signals to be fed into the neural network models. Two types of artificial neural network models, SOM (Self- Organizing maps) and RBF (Radial Basis Function) networks were separately trained and tested for ECG pattern recognition and experimental results of the different models have been compared. The trade-off between the time consuming training of artificial neural networks and their performance is also explored. The Radial Basis Function network exhibited the best performance and reached an overall accuracy of 93% and the Kohonen Self- Organizing map network reached an overall accuracy of 87.5%.


2020 ◽  
Vol 13 (1) ◽  
pp. 60-76
Author(s):  
Rhyan Ximenes De Brito ◽  
Carlos Alexandre Rolim Fernandes ◽  
Márcio André Baima Amora

As Redes Neurais Artificiais tem-se destacado na resolução de problemas em diversas áreas. Nesse sentido realizou-se um estudo com a implementação e análise das redes Multilayer Perceptron (MLP) e Radial Basis Function Neural Network (RBF), objetivando comparar resultados baseados no treinamento, teste e classificação de crianças com ou sem autismo. A metodologia foi implementada com base em 292 amostras de indivíduos de um banco de dados público, através da ferramenta Matlab R2015a, dividas em 10 partes com validação cruzada. Os resultados foram analisados considerando as características e os comportamentos diferentes das redes implementadas, obtendo-se uma medida da qualidade atingida.


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