CLASSIFICATION OF ARRHYTHMIA BY USING DEEP LEARNING WITH 2-D ECG SPECTRAL IMAGE REPRESENTATION. International Journal of AI Electronics and Nexus Energy, [S. l.], v. 2, n. 3, p. 303–309, 2026. DOI: 10.64751/0yg75r94. Disponível em: https://zesterapublications.com/journals/index.php/ijaene/article/view/928. Acesso em: 26 sep. 2026.