| Applying Data Mining to Pseudo-Relevance Feedback for High Performance Text Retrieval Recent countries visiting this post |  |
 | 7 | United States |
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| Applying Data Mining to Pseudo-Relevance Feedback for High Performance Text Retrieval Recent countries visiting this post | |
| 7 | United States |
| 3 | |
| 1 | Australia |
| 1 | Japan |