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Table 2 Overview of RMSE, mean calculation time (Calc. [s]), its standard deviation (StD.), and the models’ speed-up factor (SUF) relative to the simulation model (Sim). Bold values mark the best of the respective column

From: Evaluating different machine learning techniques as surrogate for low voltage grids

  CIGRELV     LV-rural3    
  RMSE Calc. [s] StD. SUF RMSE Calc. [s] StD. SUF
Sim - 1354.45 46.45 1.00 - 6388.01 375.63 1.00
RE LR 7.57e-05 486.64 13.21 2.78 2.91e-05 846.36 13.19 7.55
RC LR 7.57e-05 407.48 16.35 3.32 2.91e-05 678.38 10.50 9.42
RE RF 8.80e-04 3275.52 62.04 0.41 5.36e-04 9234.81 46.19 0.69
k-NN 1.34e-03 362.26 16.26 3.74 4.55e-04 745.28 2.58 8.57
ANN 2.08e-04 394.39 9.45 3.43 7.75e-05 363.11 8.71 17.59
LSTM 2.19e-03 1333.35 13.13 1.02 1.13e-03 406.46 5.10 15.72