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) |
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