Table 6.
Sensitivity and specificity of various classifiers trained on the acute renal failure data set for difference percentages of over-sampling
|
Over-sampling |
SVM |
MyC |
RIPPER |
C4.5 |
Imbalance |
||||
|---|---|---|---|---|---|---|---|---|---|
| (%) | Sens. | Spec. | Sens. | Spec. | Sens. | Spec. | Sens. | Spec. | ratio |
| 0 |
0.62 |
0.92 |
0.69 |
0.90 |
0.75 |
0.89 |
0.69 |
0.88 |
16 |
| 100 |
0.66 |
0.86 |
0.78 |
0.80 |
0.81 |
0.76 |
0.74 |
0.75 |
8 |
| 200 |
0.71 |
0.81 |
0.84 |
0.71 |
0.84 |
0.65 |
0.77 |
0.67 |
5 |
| 300 |
0.74 |
0.77 |
0.89 |
0.59 |
0.88 |
0.65 |
0.80 |
0.65 |
4 |
| 400 |
0.76 |
0.73 |
0.89 |
0.51 |
0.86 |
0.64 |
0.81 |
0.61 |
3 |
| 500 |
0.77 |
0.69 |
0.89 |
0.48 |
0.84 |
0.64 |
0.82 |
0.60 |
3 |
| 600 |
0.78 |
0.66 |
0.91 |
0.48 |
0.89 |
0.59 |
0.82 |
0.60 |
2 |
| 700 |
0.82 |
0.60 |
0.92 |
0.43 |
0.89 |
0.54 |
0.82 |
0.60 |
2 |
| 800 |
0.82 |
0.57 |
0.94 |
0.37 |
0.86 |
0.60 |
0.82 |
0.61 |
2 |
| 900 |
0.83 |
0.55 |
0.93 |
0.36 |
0.89 |
0.53 |
0.83 |
0.61 |
2 |
| 1000 | 0.84 | 0.54 | 0.95 | 0.36 | 0.88 | 0.54 | 0.83 | 0.61 | 1 |