Table 2 Prediction performance of the dry matter intake-based (DMI-B) models (CH4 yield; g/kg DMI) developed using conventional method and four machine learning methods.

From: Methane prediction equations including genera of rumen bacteria as predictor variables improve prediction accuracy

 

Conventional

glmmLasso

LASSO

SCAD

RF-B

RMSPE

2.12

1.99

1.89

1.92

1.99

Reduction of RMSPE (%)

–

6.22

11.12

9.66

6.50

MAE

1.65

1.51

1.43

1.48

1.52

Reduction of MAE (%)

–

8.21

13.31

9.97

7.36

CCC

0.28

0.46

0.57

0.51

0.48

Increase of CCC (%)

–

68.73

106.18

84.36

73.09

  1. See the notes of Table 1.
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