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Evaluation of SNoW and Stat De-id on authentic discharge summaries. Highest F-measures are in bold. The F-measure differences from Stat De-id in PHI and in non-PHI are significant at α = 0.05.
| Method | Class | Precision | Recall | F-measure |
|---|---|---|---|---|
| Stat De-id | PHI | 98.40% | 93.75% | 96.02% |
| SNoW | PHI | 96.36% | 91.03% | 93.62%* |
| Stat De-id | Non-PHI | 99.90% | 99.98% | 99.94% |
| SNoW | Non-PHI | 99.86% | 99.95% | 99.90%* |
