MAULANA, I.; MERLINA, N. ARRHYTHMIA DETECTION FROM IMBALANCED ECG DATA USING CNN, FOCAL LOSS, AND RR INTERVAL FEATURES WITH INTER-PATIENT EVALUATION. Jurnal Riset Informatika, [S. l.], v. 8, n. 4, p. 591–600, 2026. DOI: 10.34288/jri.v8i4.514. Disponível em: https://ejournal.kresnamediapublisher.com/index.php/jri/article/view/514. Acesso em: 6 oct. 2026.