Rapid Identification of Pork Adulterated in the Beef and Mutton by Infrared Spectroscopy

Table 2

Data set preprocessing and transformation on the model building.

Preprocessing methods	R^2cal	RMSEC	R^2cv	RMSECV	Predicted accuracy (%)
Original spectrum	0.98	0.09	0.99	0.11	91.7
Second derivation	0.94	0.03	0.99	0.2	3
First derivation	0.97	0.03	0.99	0.16	33
Normalization	0.99	0.06	0.99	0.08	100
Savitzky-Golay	0.98	0.09	0.99	0.11	90
MSC	0.97	0.12	0.98	0.14	98.3
SNV	0.97	0.11	0.98	0.13	98.3