| Image tag refinement towards low-rank, content-tag prior and error sparsity Recent countries visiting this post |  |
 | 9 | United States |
 | 2 | China |
 | 1 |
| Image tag refinement towards low-rank, content-tag prior and error sparsity Recent countries visiting this post | |
| 9 | United States |
| 2 | China |
| 1 |