Explorando Redes Neurais de Grafos para Classificação de Arritmias

  • Rafael F. Oliveira UFOP
  • Vander L. S. Freitas UFOP
  • Gladston J. P. Moreira UFOP
  • Eduardo J. S. Luz UFOP

Resumo


Arritmia cardíaca é uma condição de risco e seu diagnóstico precoce é de fundamental importância. Por isso, a automação do processo de identificação de arritmia é desejável. Neste contexto, um modelo de classificação automática de arritmias em sinais de eletrocardiograma (ECG) é proposto baseado em Graph Neural Network (GNN) e o batimento cardíaco representado por meio de um grafo via algoritmo Visibility Graph (VG). São avaliados três modelos de redes GNN: uma rede convolutional de grafos com duas camadas (GCN-2L), outra com três camadas (GCN-3L) e GraphSAGE (GraphSAGE-4L). Sob o paradigma interpatient, o modelo GraphSAGE-4L apresentou o melhor desempenho, obtendo F1-score médio de 0,86 para as classes N, S e V.

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Publicado
07/06/2022
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OLIVEIRA, Rafael F.; FREITAS, Vander L. S.; MOREIRA, Gladston J. P.; LUZ, Eduardo J. S.. Explorando Redes Neurais de Grafos para Classificação de Arritmias. In: SIMPÓSIO BRASILEIRO DE COMPUTAÇÃO APLICADA À SAÚDE (SBCAS), 22. , 2022, Teresina. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2022 . p. 178-189. ISSN 2763-8952. DOI: https://doi.org/10.5753/sbcas.2022.222510.