Cascante-Bonilla, P., F. Tan, Y. Qi, and V. Ordonez. “Curriculum Labeling: Revisiting Pseudo-Labeling for Semi-Supervised Learning”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 35, no. 8, May 2021, pp. 6912-20, https://ojs.aaai.org/index.php/AAAI/article/view/16852.