Table 3.

The best accuracy (%) of different methods on the Cohn-Kanade database.

Method	PCA	LDA	KPCA	KLDA	KIsomap	KDIsomap
Dimension	55	6	60	6	40	30
Accuracy	92.43 ± 3.3	90.18 ± 3.0	92.59 ± 3.6	93.32 ± 3.0	75.81 ± 4.2	94.88 ± 3.1