SAE-IF: A hybrid sparse autoencoder–isolation forest framework for real-time credit-card fraud detection and sustainable digital-economy protection. Journal of the Nigerian Society of Physical Sciences, [S. l.], v. 8, n. 3, p. 3401, 2026. DOI: 10.46481/jnsps.2026.3401. Disponível em: https://journal.nsps.org.ng/index.php/jnsps/article/view/3401. Acesso em: 31 jul. 2026.