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Table 2 Comparison of the performance of the different ML methods

From: A comprehensive study on battery electric modeling approaches based on machine learning

ML method

RMSE

MAE

Tr. time

Test. time

Memory

Npar/

 

in [mV]

in [mV]

in [s]

in [s]

in [MB]

in [-]

MLR

48.0

37.7

0.02

<0.01

15.4

6

SVR

18.3

10.1

1676

51.0

2.82

28048

K-NN

37.9

22.3

0.50

7.10

17.2

2.2 Mio.

Decision Tree

14.6

8.34

1.89

0.01

2.56

29998

Random Forest

11.7

6.48

24.4

0.22

11.5

0.6 Mio.

AdaBoost

10.8

5.98

61.7

0.59

29.8

1.2 Mio.

GBR

10.4

5.29

6.92

3.29

31.3

43681

FFNN

5.57

3.51

69.7

0.15

3.51

5041

MergeFFNN

7.63

4.75

78.2

0.22

3.54

8011

MergeLSTM

8.45

5.66

1307

2.89

4.15

1201

LSTM

8.24

5.46

1793

4.87

4.15

1821

MergeCNN

7.39

4.73

194

0.68

3.76

5651

CNN

7.99

5.21

273

0.80

3.75

7511

  1. The number of parameters Npar for model parametrization is derived from the optimized model architecture