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

Table 2

The results of comparison experiments on sub Extended Yale B face database.

Algorithms	Accuracy	Cputime (seconds)
SDAE	0.5714	212 s
LeNet-5	0.3524	1327 s
sift	0.4048	34477 s
UFLDL_CNN1	0.5857	>533 s
UFLDL_CNN2	0.6047	>2417 s
LPP	0.6143	20 s
Kernel PCA	0.4476	39 s
Algorithm 1 (F1)	0.719	292 s
Algorithm 1 (F2)	0.5619	274 s
Algorithm 2 (F3)	0.7429	148 s