| List-wise learning to rank with matrix factorization for collaborative filtering Recent countries visiting this post |  |
 | 8 | United States |
 | 3 | Hong Kong |
 | 2 | |
 | 1 | Russian Federation |
 | 1 | Japan |
 | 1 | China |
| List-wise learning to rank with matrix factorization for collaborative filtering Recent countries visiting this post | |
| 8 | United States |
| 3 | Hong Kong |
| 2 | |
| 1 | Russian Federation |
| 1 | Japan |
| 1 | China |