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

Table 6

The recognition rates on complex geometric distortion AR face database over “F1” and “F2” features; recognition rates (dimensionality).

Face database	Algorithms	G4/P9	G5/P8	G6/P7	G7/P6	G8/P5
Complex geometric distortion	Baseline (F1)	0.1570 (19800)	0.1735 (19800)	0.1871 (19800)	0.1919 (19800)	0.2037 (19800)
	LPP (F1)	0.2739 (80)	0.3094 (95)	0.3317 (115)	0.3389 (130)	0.3437 (140)
	Algorithm 1 (F1)	0.4159 (80)	0.4781 (95)	0.5212 (115)	0.5461 (125)	0.5663 (115)
Complex geometric distortion	Baseline (F2)	0.4867 (240)	0.5435 (240)	0.5814 (240)	0.6011 (240)	0.6283 (240)
	LPP (F2)	0.4443 (80)	0.5038 (85)	0.5279 (105)	0.5636 (115)	0.5840 (105)
	Algorithm 1 (F2)	0.4813 (80)	0.5265 (95)	0.5533 (105)	0.5894 (115)	0.6177 (115)