Chen Y, Zhang J, Wang T, Liang Y. Trend-Aware Supervision: On Learning Invariance for Semi-supervised Facial Action Unit Intensity Estimation. AAAI [Internet]. 2024 Mar. 25 [cited 2026 May 13];38(1):483-91. Available from: https://ojs.aaai.org/index.php/AAAI/article/view/27803