Skip to main content

Advertisement

Table 5 Simulation results for dataset D 4

From: Unsupervised Bayesian linear unmixing of gene expression microarrays

(a) R= 2
  uBLU PCA NMF BFRM GB-GMF
MSE r 2 (×1 0 2 ) 0.02 N/A 5.12 N/A N/A
  1.61 0.01 3.59 15.35 18.69
  0.05 0.44 N/A 14.42 19.20
GMSE r 2 (×1 0 1 ) 0.28 N/A 3.23 N/A N/A
  0.87 0.02 2.65 0.33 1.62
  0.69 0.76 N/A 0.50 1.30
SAD r 2 (×1 0 1 ) 0.34 N/A 4.25 N/A N/A
  3.08 0.17 3.71 14.90 14.89
  0.51 0.68 N/A 15.59 15.70
GSAD (×10−2) 4.97 5.24 5.25 157.09 156.19
RE (×10−4) 4.49 4.88 4.89 19.34 8.48
Time (s) 1.61×103 0.02 1.36 35.29 0.40×103
(b) R = 3
  uBLU PCA NMF BFRM GB-GMF
MSE r 2 (×1 0 2 ) 0.02 0.01 6.18 18.38 21.63
  1.61 0.01 4.79 16.10 19.55
  0.05 0.09 4.21 15.04 19.85
GMSE r 2 (×1 0 1 ) 0.28 0.05 1.67 1.44 1.29
  0.87 0.05 1.01 0.37 1.75
  0.69 0.05 0.94 0.26 1.17
SAD r 2 (×1 0 1 ) 0.34 0.27 4.12 15.21 15.65
  3.08 0.17 4.09 15.26 15.90
  0.51 0.32 4.16 16.07 15.36
GSAD (×10−2) 4.97 4.95 4.99 157.08 154.80
RE (×10−4) 4.49 4.34 4.36 25.00 8.48
Time (s) 1.61×103 0.10 1.78 41.05 0.55×103
(c) R = 4
  uBLU PCA NMF BFRM GB-GMF
MSE r 2 (×1 0 2 ) 0.02 0.01 6.98 17.51 21.60
  1.61 0.01 7.30 15.07 19.03
  0.05 0.07 4.27 14.55 19.14
GMSE r 2 (×1 0 1 ) 0.28 0.22 0.65 0.75 1.29
  0.87 0.51 0.91 0.77 1.18
  0.69 0.05 0.56 0.56 1.33
SAD r 2 (×1 0 1 ) 0.34 0.27 4.41 15.61 15.51
  3.08 0.19 4.81 16.31 14.77
  0.51 0.33 4.00 15.84 15.26
GSAD (×10−2) 4.97 4.91 4.94 156.76 162.63
RE (×10−4) 4.49 4.30 4.33 13.48 8.29
Time (s) 1.61×103 0.16 1.56 48.22 0.70×103
  1. MSEs, GMSEs, SADs, GSADs, REs and computational times between the proposed uBLU algorithm and PCA, NMF, BFRM and GB-GMF methods.