Bridging Data Silos in Corporate Governance: A Hierarchical Stacking Ensemble With Federated Dynamic Aggregation. - Masum, Abdul Kadar Muhammad; Azad, Md. Abul Kalam; Bhuiyan, Md. Tofael Ahmed; Rahman, Md. Abdur; Sarwar, Nadeem (Applied Computational Intelligence & Soft Computing, 2026)