Table 4 The hyperparameters of each model and a comparison of the evaluation metrics

From: The impact of spatial perception at agricultural heritage sites on tourists’ carbon reduction behavior

  

TB

CB

RB

EPB

Hyperparameter

max_depth

3

3

3

3

 

learning_rate

0.02

0.01

0.02

0.02

 

min_child_weight

1

3

2

4

 

colsample_bytree

0.7

0.8

0.7

0.7

 

alpha

0

0

0

0

 

subsample

0.8

0.8

0.8

0.8

 

lambda

1

1

1

0

 

random_state

30

30

30

30

Evaluation metrics

R2

0.901

0.9137

0.941

0.913

 

RMSE

0.145

0.125

0.120

0.120

 

MAPE

0.026

0.017

0.021

0.032

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