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

Table 3

Description of the dataset.

Type of heavy machinery	Number of records		Main characteristics (make, model, power, year of manufacture, number of hours worked, weight, and geo-location)
	Before processing	After processing
Bulldozers	57676	36159	Load capacity, chassis type, cab type, bucket capacity
Loaders	58348	32648	Lifting height, load capacity
Excavators	37260	16152	Lifting capacity, cab type, bucket volume