Learning spatial weighting via quadratic programming for facial expression analysis. - Chia-Te Liao; Hui-Ju Chuang; Chih-Hsueh Duan; Shang-Hong Lai (CVPR Workshops, 2010)

Learning expression kernels for facial expression intensity estimation. - Chia-Te Liao; Hui-Ju Chuang; Shang-Hong Lai (ICASSP, 2012)

Learning spatial weighting for facial expression analysis via constrained quadratic programming. - Chia-Te Liao; Hui-Ju Chuang; Chih-Hsueh Duan; Shang-Hong Lai (Pattern Recognit., 2013)