NegBio: a high-performance tool for negation and uncertainty detection in radiology reports
Table 4: Evaluation results on BioScope and PK using NegEx and NegBio. Performance is measured by precision (P), recall (R), and F1-score (F) on negations.
['Method', 'BioScope P', 'BioScope R', 'BioScope F', 'PK P', 'PK R', 'PK F']
On BioScope, we observed that, the overall performance of NegBio was higher than that of NegEx with a substantial 25.5% increase in precision and 13.6% increase in F1-score. On PK, NegBio also achieved slightly higher precision (2.7%) and F1-scores (0.2%).