| Hydra: a hybrid recommender system [cross-linked rating and content information] Recent countries visiting this post | ![Hydra: a hybrid recommender system [cross-linked rating and content information]](/files/imagecache/hydra_a_hybrid_recommender_system_cross_linked_rating_and_content_information_CIKM_2009.jpg "Hydra: a hybrid recommender system [cross-linked rating and content information]") |
 | 7 | United States |
 | 2 | |
 | 1 | Poland |
| Hydra: a hybrid recommender system [cross-linked rating and content information] Recent countries visiting this post | |
| 7 | United States |
| 2 | |
| 1 | Poland |