| Optimal k-Anonymity with Flexible Generalization Schemes through Bottom-up Searching Recent countries visiting this post |  |
 | 5 | United States |
 | 1 | Germany |
 | 1 | Japan |
| Optimal k-Anonymity with Flexible Generalization Schemes through Bottom-up Searching Recent countries visiting this post | |
| 5 | United States |
| 1 | Germany |
| 1 | Japan |