Zhou, S., J. Jia, Z. Wu, Z. Yang, Y. Wang, W. Chen, F. Meng, S. Huang, J. Shen, and X. Wang. “Inferring Emotion from Large-Scale Internet Voice Data: A Semi-Supervised Curriculum Augmentation Based Deep Learning Approach”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 35, no. 7, May 2021, pp. 6039-47, https://ojs.aaai.org/index.php/AAAI/article/view/16753.