Portable optical spectroscopy and machine learning techniques for quantification of the biochemical content of raw food materials

Table 1 PLSR accuracy on pomegranate TSS by means of the best combinations of pre-processing techniques in the season 2020

Parameter	STD. DEV	Pre-processing combination	RMSE	R²	RPD	LVs
TSS 2020
Calibration	2.70	Log, 2nd Der, SNV	0.98	0.87	2.77	2
Calibration	2.70	1st Der, SNV	1.00	0.86	2.72	3
Validation	2.48	Log, 2nd Der, SNV	1.06	0.81	2.34	2
Validation	2.48	1st Der, SNV	1.09	0.80	2.27	3

ISSN: 2662-4044