Liu, Mengpu, Mengying Zhu, Xiuyuan Wang, Guofang Ma, Jianwei Yin, and Xiaolin Zheng. “ECHO-GL: Earnings Calls-Driven Heterogeneous Graph Learning for Stock Movement Prediction”. Proceedings of the AAAI Conference on Artificial Intelligence 38, no. 12 (March 24, 2024): 13972-13980. Accessed May 8, 2024. https://ojs.aaai.org/index.php/AAAI/article/view/29305.