LIANG, Yanan. Adaptive Dynamic Portfolio Optimization via a PPO-DQN Hierarchical Reinforcement Learning Framework. Informatica, [S. l.], v. 49, n. 27, 2025. DOI: 10.31449/inf.v49i27.9966. Disponível em: https://www.informatica.si/index.php/informatica/article/view/9966. Acesso em: 24 jan. 2026.