Zhu, Qiuming, Haoran Kou, Linyi Qian, Chunqi Shi, Xianyi Wu, and Ziwei Zhou. “Physics-Informed Koopman Neural Estimation of the Heston Model from High-Frequency Observations”. Proceedings of the AAAI Conference on Artificial Intelligence 40, no. 34 (March 14, 2026): 29142–29149. Accessed May 10, 2026. https://ojs.aaai.org/index.php/AAAI/article/view/40152.