Heidari, Marzi, and Yuhong Guo. “Bi-Level Optimization for Semi-Supervised Learning With Pseudo-Labeling”. Proceedings of the AAAI Conference on Artificial Intelligence 39, no. 16 (April 11, 2025): 17168–17176. Accessed May 13, 2026. https://ojs.aaai.org/index.php/AAAI/article/view/33887.