Liang Huang Yong Ma Yoshihisa Ijiri Shihong Lao Masato Kawade Yuming Zhao An Adaptive Nonparametric Discriminant Analysis Method and Its Application to Face Recognition. 680-689 2007 conf/accv/2007-2 ACCV (2) http://dx.doi.org/10.1007/978-3-540-76390-1_67 db/conf/accv/accv2007-2.html#HuangMILKZ07