AUHead: Realistic Emotional Talking Head Generation via Action Units Control - Lyu, Jiayi; Qu, Leigang; Zhang, Wenjing; Jiang, Hanyu; Liu, Kai; Zhou, Zhenglin; Xia, Xiaobo; Xue, Jian; Chua, Tat-Seng (International Conference on Learning Representations, 2026)