| Mining topic-level influence in heterogeneous networks Recent countries visiting this post |  |
 | 8 | United States |
 | 4 | |
 | 4 | China |
 | 1 | Greece |
 | 1 | Italy |
 | 1 | Russian Federation |
| Mining topic-level influence in heterogeneous networks Recent countries visiting this post | |
| 8 | United States |
| 4 | |
| 4 | China |
| 1 | Greece |
| 1 | Italy |
| 1 | Russian Federation |