Table 3 Performance of de-identification on simulated data
Mutator type | True positives | False positives | False negatives | Precision | Recall |
|---|---|---|---|---|---|
Character substitution (3%) | 8 191 | 538 | 391 | 93.9 | 95.5 |
Character substitution (10%) | 7 740 | 447 | 826 | 94.6 | 90.4 |
Character substitution (20%) | 6 969 | 271 | 1 537 | 96.3 | 82 |
Address Alias Substitution | 8 171 | 486 | 455 | 94.4 | 94.8 |
Address Token Removal | 2 761 | 99 | 237 | 96.6 | 92.1 |
OCR (3% char. sub. 3% white space | 8 464 | 160 | 1555 | 98.2 | 84.5 |
OCR (10% char. sub. 10% white space | 5 327 | 180 | 7282 | 96.8 | 42.3 |
OCR (20% char. sub. 20% white space | 1 802 | 151 | 14719 | 92.3 | 11.0 |