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Table 3 Facial expression recognition rate (%) using the JAFFE dataset with different subspace dimensionalities (case 1: no. training = 1)

From: Projective complex matrix factorization for facial expression recognition

No. base proCMF NMF proNMF conNMF weiNMF NeNMF PCA GSNMF uRNGE usRNGE sRNGE ssRNGE
20 71.33 68.11 50.00 45.53 63.36 66.85 51.05 68.11 22.38 31.68 27.62 60.77
30 71.19 70.84 56.01 49.09 68.32 61.05 57.34 70.07 22.10 60.77 33.78 62.31
40 71.47 71.68 57.83 48.60 68.95 63.28 58.74 69.23 28.18 64.27 39.79 60.28
50 70.14 71.12 60.21 52.17 69.02 61.82 57.34 69.09 32.66 63.50 43.15 62.73
60 69.65 69.79 57.34 46.36 72.38 63.71 57.34 70.28 36.78 64.41 47.41 61.82
70 70.07 26.15 60.56 27.34 69.16 62.52 57.34 70.98 42.24 71.40 51.19 70.77
80 69.09 16.01 62.03 27.90 23.50 62.87 NA 69.93 46.64 13.43 59.86 12.31
90 70.28 18.60 63.64 26.01 26.71 61.40 NA 70.91 49.37 13.15 64.55 15.38
100 70.56 52.94 61.54 35.59 15.25 63.36 NA 70.56 53.64 14.06 66.36 15.17
Ave. 70.42 51.69 58.80 39.84 52.96 62.98 57.62 69.91 37.11 44.07 48.19 46.84