Methodology for Estimating the Cost of Construction Equipment Based on the Analysis of Important Characteristics Using Machine Learning Methods

Table 9

Accuracy assessment of the random forest model.

Random forest
Type of heavy machinery	Accuracy estimate
	R2_score	MAE	MSE	RMSE
Bulldozers	0.82	2788	18105025	4255
Loaders	0.86	2334	14907321	3861
Excavators	0.77	2964	21418384	4628