Table 4.
Performance of the negation detection of medical concepts in the two domains.
| Chest X-ray | Discharge letter | |
|---|---|---|
| Documents | 100 | 50 |
| Negations | 619 | 397 |
| TP | 608 | 366 |
| FP | 1 | 1 |
| FN | 11 | 31 |
| Precision | 0.998 | 0.997 |
| Recall | 0.982 | 0.922 |
| F1 | 0.990 | 0.958 |
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