Learning Quadratic Discriminant Function for Handwritten Character Classification.

Cheng-Lin Liu Hiroshi Sako Hiromichi Fujisawa Learning Quadratic Discriminant Function for Handwritten Character Classification. 44-47 2002 ICPR (4) http://doi.ieeecomputersociety.org/10.1109/ICPR.2002.1047396 db/conf/icpr/icpr2002-4.html#LiuSF02