Prototype of the Near-Infrared Spectroscopy Expert System for Particleboard Identification

Table 2

The results of the discrimination success rate at the first level of expert system.

Discrimination algorithm	Spectra preprocessing
	No preprocessing	Normalization	SNV	EMSC	1^st derivative	2^nd derivative
PLS-DA	99.1	99.1	98.2	98.2	98.2	100
SVM	99.1	63.2	100	100	93.9	63.2
KNN [3]	93.0	96.5	97.4	96.5	97.4	98.2
SIMCA	94.7	99.1	99.1	98.2	99.1	100