Mathematical Problems in Engineering / 2014 / Article / Tab 1

Research Article

Neighborhood Preserving Convex Nonnegative Matrix Factorization

Table 1

Face recognition accuracy on the ORL data set. The number in brackets is the corresponding projection dimensionality.

Method 2 Train 3 Train 4 Train

Baseline 69.32% 77.56% 83.48%
PCA 69.32% (79) 77.56% (118) 83.48% (152)
LDA 72.80% (25) 83.79% (39) 90.13% (39)
NPE 73.19% (36) 84.29% (54) 91.06% (73)
NMF 70.87% (97) 78.98% (81) 84.48% (95)
LNMF 71.73% (178) 81.09% (168) 86.31% (195)
CNMF 72.23% (138) 83.58% (143) 89.56% (111)
NCPNMF 77.31% (143) 86.73% (153) 93.35% (145)