Detection of the Soluble Solid Contents from Fresh Jujubes during Different Maturation Periods Using NIR Hyperspectral Imaging and an Artificial Bee Colony

Table 2

Results of the GS-LS-SVM models for the prediction of SSC in different maturation stages of jujube samples over the full spectral range.

Prediction set	γ	σ^2	Rc^2	RMSEC (%)	Rp^2	RMSEP (%)	Slope	Bias	RPD
Immature	1.21 ∗ 10^4	1.21 ∗ 10^3	0.95	1.35	0.85	0.86	1.03	0.14	2.30
White-mature					0.83	0.64	1.08	0.06	2.03
Crisp-mature					0.84	1.50	0.79	0.60	2.31
Full-mature					0.81	1.21	0.82	−0.33	2.26
Overall					0.98	1.10	0.97	−0.08	7.85