From: Modeling and mining term association for improving biomedical information retrieval performance
k 1 | b | Indices | Genomics 2007 | Genomics 2006 | Genomics 2005 | Genomics 2004 | HARD 2004 | ||||
---|---|---|---|---|---|---|---|---|---|---|---|
 |  |  | document | passage | passage2 | document | passage | document | document | document | passage |
0.4 | 2.0 | word | 0.1584 | 0.0675 | 0.0267 | 0.2662 | 0.0532 | - | - | - | - |
 |  | sentence | 0.1368 | 0.0406 | 0.0154 | 0.2378 | 0.0398 | - | - | - | - |
 |  | paragraph | 0.1086 | 0.0170 | 0.0094 | 0.2036 | 0.0192 | 0.1964 | 0.2952 | 0.2449 | 0.2635 |
 |  | BEST | 0.1584 | 0.0675 | 0.0267 | 0.2662 | 0.0532 | 0.1964 | 0.2952 | 0.2449 | 0.2635 |
0.5 | 1.3 | word | 0.2108 | 0.0963 | 0.0364 | 0.3140 | 0.0718 | - | - | - | - |
 |  | sentence | 0.1805 | 0.0700 | 0.0350 | 0.3030 | 0.0550 | - | - | - | - |
 |  | paragraph | 0.1588 | 0.0452 | 0.0333 | 0.3109 | 0.0369 | 0.2602 | 0.3404 | 0.2802 | 0.2985 |
 |  | BEST | 0.2108 | 0.0963 | 0.0364 | 0.3140 | 0.0718 | 0.2602 | 0.3404 | 0.2802 | 0.2985 |
1.0 | 1.0 | word | 0.1556 | 0.0434 | 0.0328 | 0.3097 | 0.0659 | - | - | - | - |
 |  | sentence | 0.1809 | 0.0758 | 0.0350 | 0.2918 | 0.0521 | - | - | - | - |
 |  | paragraph | 0.1902 | 0.0893 | 0.0327 | 0.2916 | 0.0337 | 0.2547 | 0.3425 | 0.2522 | 0.2718 |
 |  | BEST | 0.1902 | 0.0893 | 0.0350 | 0.3097 | 0.0659 | 0.2547 | 0.3425 | 0.2522 | 0.2718 |
1.2 | 0.75 | word | 0.1809 | 0.0780 | 0.0295 | 0.3045 | 0.0651 | - | - | - | - |
 |  | sentence | 0.1987 | 0.0814 | 0.0394 | 0.3202 | 0.0522 | - | - | - | - |
 |  | paragraph | 0.2013 | 0.0648 | 0.0578 | 0.3381 | 0.0362 | 0.2874 | 0.3584 | 0.2617 | 0.2758 |
 |  | BEST | 0.2013 | 0.0814 | 0.0578 | 0.3381 | 0.0651 | 0.2874 | 0.3584 | 0.2617 | 0.2758 |
2.0 | 0.4 | word | 0.1953 | 0.0844 | 0.0317 | 0.3152 | 0.0637 | - | - | - | - |
 |  | sentence | 0.2084 | 0.0758 | 0.0401 | 0.3529 | 0.0490 | - | - | - | - |
 |  | paragraph | 0.2025 | 0.0633 | 0.0641 | 0.3476 | 0.0362 | 0.2779 | 0.3483 | 0.2810 | 0.2895 |
 |  | BEST | 0.2084 | 0.0844 | 0.0641 | 0.3529 | 0.0637 | 0.2779 | 0.3483 | 0.2810 | 0.2895 |