LUO, Ruihan; WANG, Nanxi; ZHU, Xiaotong. Fraud Detection and Risk Assessment of Online Payment Transactions on E-Commerce Platforms Based on LLM and GCN Frameworks. European Journal of Business, Economics & Management, [S. l.], v. 1, n. 5, p. 1–9, 2025. DOI: 10.71222/15dz2d22. Disponível em: https://pinnaclepubs.com/index.php/EJBEM/article/view/367. Acesso em: 22 nov. 2025.