| Automatic video annotation via Hierarchical Topic Trajectory Model considering cross-modal correlations Recent countries visiting this post |  |
 | 6 | United States |
 | 3 | |
 | 1 | Russian Federation |
| Automatic video annotation via Hierarchical Topic Trajectory Model considering cross-modal correlations Recent countries visiting this post | |
| 6 | United States |
| 3 | |
| 1 | Russian Federation |