Wang, Rundong, Hongxin Wei, Bo An, Zhouyan Feng, and Jun Yao. “Commission Fee Is Not Enough: A Hierarchical Reinforced Framework for Portfolio Management”. Proceedings of the AAAI Conference on Artificial Intelligence 35, no. 1 (May 18, 2021): 626-633. Accessed April 18, 2024. https://ojs.aaai.org/index.php/AAAI/article/view/16142.