Symeon Nikitidis, Anastasios Tefas, Ioannis Pitas. Using subclasses in discriminant non-negative subspace learning for facial expression recognition. In Proceedings of the 19th European Signal Processing Conference, EUSIPCO 2011, Barcelona, Spain, August 29 - Sept. 2, 2011. pages 1964-1968, IEEE, 2011. [doi]
Abstract is missing.