Rapid and Nondestructive On-Site Classification Method for Consumer-Grade Plastics Based on Portable NIR Spectrometer and Machine Learning

Table 4

Performance of classification models for white commercial plastic samples.

PCA (n)			Calibration	Prediction
			ACC (%)	ACC (%)	Precision (%)		Sensitivity (%)		F1-score (100)
					Micro	Macro	Micro	Macro	Micro	Macro
SVM	MSC	3	100	99.58	99.58	99.59	99.58	99.58	99.58	99.58
	SNV	2	100	93.44	93.44	95.31	93.44	93.44	93.44	93.16
	D1	3	99.89	100	100	100	100	100	100	100
	SG	3	99.28	99.58	99.58	99.59	99.58	99.58	99.58	99.58
KNN	MSC	3	100	99.58	99.58	99.59	99.58	99.58	99.58	99.58
	SNV	2	100	99.95	99.95	99.96	99.95	99.95	99.95	99.95
	D1	3	100	99.58	99.58	99.59	99.58	99.58	99.58	99.58
	SG	3	100	99.58	99.58	99.59	99.58	99.58	99.58	99.58
BPNN	MSC	2	100	98.80	98.80	98.89	98.80	98.80	98.80	98.80
	SNV	2	91.52	97.12	97.12	97.60	97.12	97.12	97.122	97.15
	D1	2	99.83	99.94	99.94	99.94	99.94	99.94	99.94	99.94
	SG	2	99.77	99.17	99.17	99.22	99.17	99.17	99.17	99.17