Table 5.

Optimal number of PCs and resulting overall classification accuracy for ten PCA-BNN secondary classifiers

NN unit	Optimal number of PCs	OCA (%)
PCA-BNN1:(2:4:2)-NOR/CYST	2	100
PCA-BNN2:(2:4:2)-NOR/HEM	2	100
PCA-BNN3:(6:4:2) -NOR/HCC	6	98.7
PCA-BNN4:(5:4:2)- NOR/MET	5	96.4
PCA-BNN5:(2:4:2)-CYST/HEM	2	100
PCA-BNN6:(2:4:2)-CYST/HCC	2	98.4
PCA-BNN7:(2:4:2)-CYST/MET	2	95.7
PCA-BNN8:(2:4:2)- HEM/HCC	2	98.5
PCA-BNN9:(3:4:2)-HEM/MET	3	92.0
PCA-BNN10:(2:4:5)–HCC/MET	3	97.6