An Improved EMD-Based Dissimilarity Metric for Unsupervised Linear Subspace Learning

Table 9

The recognition rates on slight rotation AR face database over “F1” and “F2” features; recognition rates (dimensionality).

Face database	Algorithms	G4/P9	G5/P8	G6/P7	G7/P6	G8/P5
Slight rotation	Baseline (F1)	0.1724 (19800)	0.1925 (19800)	0.2086 (19800)	0.2161 (19800)	0.2280 (19800)
	LPP (F1)	0.3450 (80)	0.3856 (95)	0.4281 (115)	0.4264 (125)	0.4520 (140)
	Algorithm 1 (F1)	0.5383 (65)	0.6085 (95)	0.6619 (110)	0.6883 (125)	0.7070 (80)
Slight rotation	Baseline (F2)	0.5769 (240)	0.6325 (240)	0.6748 (240)	0.6861 (240)	0.7143 (240)
	LPP (F2)	0.5385 (75)	0.5844 (90)	0.6171 (105)	0.6286 (110)	0.6670 (120)
	Algorithm 1 (F2)	0.6393 (80)	0.6856 (95)	0.7343 (100)	0.7528 (105)	0.7870 (115)