IDOWU, G. A., and J. E. OWOLABI. “ENSEMBLE-BASED FRAUD DETECTION IN NIGERIAN BANKING: A SYNTHETIC DATA BENCHMARK AND COST-SENSITIVE ANALYSIS GBOLAHAN ADENIRAN IDOWU∗ AND JOSIAH ENDURANCE OWOLABI ABSTRACT. Fraud Detection in Nigerian Banking Is Critically Hampered by a Scarcity of Authen”. Unilag Journal of Mathematics and Applications, Vol. 6, no. 1, Mar. 2026, pp. 107 -29, https://lagjma.unilag.edu.ng/article/view/2874.