Chen, Kaixuan, Lina Yao, Dalin Zhang, Xiaojun Chang, Guodong Long, and Sen Wang. “Distributionally Robust Semi-Supervised Learning for People-Centric Sensing”. Proceedings of the AAAI Conference on Artificial Intelligence 33, no. 01 (July 17, 2019): 3321-3328. Accessed March 28, 2024. https://ojs.aaai.org/index.php/AAAI/article/view/4205.