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. 2022 Nov 19;22(22):8958. doi: 10.3390/s22228958

Table 4.

Parameter selection through grid search.

RF XGB ANN
Model
Parameters
Considered
Range
Optimum
Value
Model
Parameters
Considered
Range
Optimum
Value
Model
Parameters
Considered
Range
Optimum
Value
Minimum
sample leaf
(1, 2, 3) 3 Maximum
depth
1 to 20 15 Number of epochs (20, 50, 100, 200, 250] 200
Minimum
sample split
(2, 4, 8, 16) 8 Gamma 0.1 to 1 1 Batch size (32, 64, 128, 256) 32
Number of
estimator
(20, 30, 50, 100, 150, 200, 250) 150 Number of
estimator
50 to 1000 500 Learning rate (0.001, 0.01, 0.1, 0.2, 0.3) 0.2
Maximum
features
(3, 5, 7, 9) 3 Learning
rate
0.1 to 1 0.1 Momentum (0.0, 0.2, 0.4, 0.6, 0.8, 0.9) 0.9