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

Table 3

Performance of classification models for transparent commercial plastic samples.

PCA (n)			Calibration	Prediction
			ACC (%)	ACC (%)	Precision (%)		Sensitivity (%)		F1-score (100)
					Micro	Macro	Micro	Macro	Micro	Macro
SVM	MSC	3	100	84.37	84.37	85.90	84.37	84.37	84.37	83.80
	SNV	2	100	100	100	100	100	100	100	100
	D1	3	100	100	100	100	100	100	100	100
	SG	5	99.70	98.75	98.75	98.80	98.75	98.75	98.75	98.74
KNN	MSC	3	100	84.37	84.37	85.90	84.37	84.37	84.37	83.80
	SNV	2	100	100	100	100	100	100	100	100
	D1	3	100	100	100	100	100	100	100	100
	SG	5	99.48	98.73	98.73	98.79	98.73	98.73	98.73	98.73
BPNN	MSC	2	100	86.25	86.25	89.10	86.25	86.25	86.25	85.51
	SNV	2	100	100	100	100	100	100	100	100
	D1	2	100	100	100	100	100	100	100	100
	SG	2	98.50	100	100	100	100	100	100	100