A Multiple Classifiers System for Anomaly Detection in Credit Card Data With Unbalanced and Overlapped Classes. - Suraya Nurain Kalid; Keng Hoong Ng; Gee-Kok Tong; Kok-Chin Khor (IEEE Access, 2020)

Mitigating unbalanced and overlapped classes in credit card fraud data with enhanced stacking classifiers system. - Nur Amirah Ishak; Keng Hoong Ng; Gee-Kok Tong; Suraya Nurain Kalid; Kok-Chin Khor (F1000Research, 2022)

Detecting Frauds and Payment Defaults on Credit Card Data Inherited With Imbalanced Class Distribution and Overlapping Class Problems: A Systematic Review. - Suraya Nurain Kalid; Kok-Chin Khor; Keng Hoong Ng; Gee-Kok Tong (IEEE Access, 2024)