| Set | Imbalance | SVM | C4.5 | MyC | RIPPER | ||||
---|---|---|---|---|---|---|---|---|---|---|
Data set | expansion | ratio | Sens | Spec | Sens | Spec | Sens | Spec | Sens | Spec |
Hepatobiliary | No | 0.5 | 0.99 | 0.03 | 0.99 | 0.03 | 0.99 | 0.07 | 0.99 | 0.04 |
 | Yes | 42 | 0.89 | 0.77 | 0.90 | 0.79 | 0.92 | 0.69 | 0.91 | 0.71 |
Acute renal failure | No | 16 | 0.62 | 0.92 | 0.69 | 0.88 | 0.69 | 0.90 | 0.71 | 0.89 |
 | Yes | 1363 | 0.39 | 0.98 | - | - | 0.45 | 0.99 | 0.41 | 0.98 |