PANJAITAN, Febriyanti; CE, Win; RAMADHAN, M. Fajar; WINARNIE; OKTAFIANDI, Hery. Machine Learning Classification of SCD, CHF, and NSR Using 15-Minute ECG-Derived HRV Features. Journal of Information Systems and Informatics, [S. l.], v. 8, n. 2, p. 2275–2299, 2026. DOI: 10.63158/journalisi.v8i2.1557. Disponível em: https://journal-isi.org.adsii.or.id/index.php/isi/article/view/1557. Acesso em: 26 apr. 2026.