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

Table 8

Evaluation of the accuracy of the decision tree model.

Decision tree
Type of heavy machinery	Accuracy estimate
	R2_score	MAE	MSE	RMSE
Bulldozers	0.76	2941	26102569	5109
Loaders	0.78	2788	24810361	4981
Excavators	0.68	3167	32936121	5739