Hybrid Metric K-Nearest Neighbor Algorithm and Applications

Table 3

Parameters for hydraulic system condition monitoring dataset.

Target item name	Conditions	Instances
Cooler condition	Close to total failure	732
	Reduced efficiency	732
	Full efficiency	741
Valve condition	Optimal switching behavior	1125
	Small lag	360
	Severe lag	360
	Close to total failure	360
Internal pump leakage	No leakage	1221
	Weak leakage	492
	Severe leakage	492
Hydraulic accumulator	Optimal pressure	599
	Slightly reduced pressure	399
	Severely reduced pressure	399
	Close to total failure	808
Stable flag	Conditions were stable	1449
	Static conditions might not have been reached yet	756