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

Table 1

The results of comparison experiments on subAR face database.

Algorithms	Accuracy	Cputime
SDAE	0.7444	177 s
LeNet-5	0.5944	1061 s
sift	0.85	1401
UFLDL_CNN1	0.7055	>437 s
UFLDL_CNN2	0.7166	>1940 s
LPP	0.4833	11 s
Kernel PCA	0.7667	27 s
Algorithm 1 (F1)	0.7278	118 s
Algorithm 1 (F2)	0.8222	110 s
Algorithm 2 (F3)	0.9444	59 s