Fraud detection in Nigerian financial card transactions using a graph attention network. Proceedings of the Nigerian Society of Physical Sciences, [S. l.], v. 3, p. 295, 2026. DOI: 10.61298/pnspsc.2026.3.295. Disponível em: https://flayoophl.com/journals/index.php/pnspsc/article/view/295. Acesso em: 10 jun. 2026.