Research Article
Knowledge Mining from Clinical Datasets Using Rough Sets and Backpropagation Neural Network
Table 11
Accuracy of reducts for (a) hepatitis, (b) breast cancer, and (c) heart disease.
(a) Hepatitis accuracy (%) |
| Reduct | (80–20) | (70–30) | (60–40) |
| | 95.2 | 93.9 | 91.2 | | 96.6 | 92.5 | 93.2 | | 93.9 | 91.2 | 92.5 | | 95.2 | 91.8 | 91.2 | | 93.9 | 91.8 | 94.6 | | 95.9 | 94.6 | 91.8 | | 95.2 | 93.2 | 91.2 | | 95.2 | 92.5 | 91.8 | | 97.3 | 95.9 | 93.9 | All features | 87.8 | 87.1 | 86.4 |
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(b) Breast cancer accuracy (%) |
| Reduct | (80–20) | (70–30) | (60–40) |
| | 98.6 | 98.3 | 97.6 | | 97.6 | 97.4 | 97.4 | | 98.4 | 98.0 | 97.6 | | 98.4 | 98.1 | 97.4 | | 98.0 | 97.9 | 97.6 | | 98.0 | 98.0 | 97.9 | | 97.9 | 97.7 | 97.1 | | 98.4 | 98.0 | 97.3 | | 98.0 | 97.7 | 97.6 | All features | 97.7 | 97.7 | 97.4 |
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(c) Heart Disease Accuracy |
| Reduct | (80–20) | (70–30) | (60–40) |
| | 79.6 | 78.1 | 77.4 | | 81.1 | 81.1 | 80.4 | | 84.8 | 84.8 | 84.4 | | 85.9 | 83.0 | 83.3 | | 88.9 | 84.8 | 84.1 | | 90.4 | 88.1 | 87.8 | | 88.1 | 87.0 | 85.9 | | 86.3 | 85.2 | 83.3 | | 88.5 | 85.6 | 84.8 | All features | 84.4 | 84.1 | 84.8 |
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