| Sparsity preserving projections with applications to face recognition Recent countries visiting this post |  |
 | 4 | United States |
 | 2 | |
 | 1 | Sweden |
 | 1 | Russian Federation |
 | 1 | Japan |
 | 1 | China |
| Sparsity preserving projections with applications to face recognition Recent countries visiting this post | |
| 4 | United States |
| 2 | |
| 1 | Sweden |
| 1 | Russian Federation |
| 1 | Japan |
| 1 | China |