| Content-based retrieval for heterogeneous domains: domain adaptation by relative aggregation points Recent countries visiting this post |  |
 | 9 | United States |
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| Content-based retrieval for heterogeneous domains: domain adaptation by relative aggregation points Recent countries visiting this post | |
| 9 | United States |
| 8 | China |
| 3 | |
| 2 | Germany |
| 1 | United Kingdom |
| 1 | Italy |