HAFIZ MUHAMMAD USMAN; SAJEELA NOOR; MUHAMMAD ZUNNURAIN HUSSAIN; MUHAMMAD ZULKIFL HASAN. GRAPH-AUGMENTED HYBRID PORTFOLIO RISK MANAGEMENT USING GRAPH NEURAL NETWORKS, HIERARCHICAL RISK PARITY, AND REINFORCEMENT LEARNING WITH XGBOOST-BASED CRASH ANTICIPATION. Spectrum of Engineering Sciences, [S. l.], v. 3, n. 9, p. 391–409, 2025. Disponível em: https://sesjournal.org/index.php/1/article/view/1017. Acesso em: 25 sep. 2025.