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Table 3 Performance of each method of OPLSR a, OPLSR b, FDR, and Lasso is shown with respect to each parameter (q-value for FDR, λ for Lasso, and αf for the other two). The precision and the number of selected variables were denoted by P and N, respectively. The boldfaced numbers indicate the ones which outperformed the others

From: Feature selection using distributions of orthogonal PLS regression vectors in spectral data

Method

MSE

Q2

P

N

OPLSRa

αf=0.01

12,332

0.86

0.871

11.0

 

αf=0.05

8,989

0.89

0.701

16.2

 

αf=0.10

6,829

0.91

0.640

22.7

OPLSRb

αf=0.01

10,896

0.88

0.915

11.7

 

αf=0.05

8,704

0.91

0.860

28.3

 

αf=0.10

7,081

0.92

0.818

41.2

FDR

q=0.01

33,038

0.64

0.750

9.0

 

q=0.05

12,123

0.86

0.714

36.6

 

q=0.10

11,194

0.85

0.536

40.1

Lasso

λ=0.01

7,120

0.91

0.545

6.6

 

λ=0.10

10,796

0.89

0.477

4.0

 

λ=0.50

14,028

0.81

0.496

2.2