Comparison of Machine Learning Classification Methods for Determining the Geographical Origin of Raw Milk Using Vibrational Spectroscopy

Table 2

Statistical parameters obtained by the PCA-LDA method.

Confusion matrix			Actual				Sensitivity (%)	Specificity (%)	% CCR
			R1	R2	R3	R4
Raw		R1	24	0	0	0	100	100	99.5
		R2	0	24	0	0	100	100
		R3	0	0	28	1	100	100
		R4	0	0	0	24	100	98.7
Detrend polynomial 1	Predicted	R1	24	0	0	0	100	100	100
		R2	0	24	0	0	100	100
		R3	0	0	28	0	100	100
		R4	0	0	0	25	100	100
Detrend polynomial 2		R1	24	0	0	0	100	100	98.5
		R2	0	24	0	0	100	100
		R3	0	0	28	3	100	100
		R4	0	0	0	22	100	96.2