Research Article
A Model of High-Dimensional Feature Reduction Based on Variable Precision Rough Set and Genetic Algorithm in Medical Image
Table 11
The statistical results of the second group for experiment 2 with the SVM classifier.
| | Experiment times | Accuracy (%) | Sensitivity (%) | Specificity (%) | Time (s) |
| | Reduction 1 | 1 | 93.00 | 86.50 | 99.50 | 22.8007 | | 2 | 95.75 | 97.00 | 94.50 | 23.7646 | | 3 | 97.00 | 96.00 | 98.00 | 23.3250 | | 4 | 97.50 | 98.50 | 96.50 | 24.4491 | | 5 | 99.25 | 100.00 | 98.50 | 24.4816 | | Average value | 96.50 | 95.60 | 97.40 | 23.7642 | | Reduction 2 | 1 | 93.75 | 88.00 | 99.50 | 25.2403 | | 2 | 96.25 | 97.50 | 95.00 | 26.5289 | | 3 | 98.00 | 97.00 | 99.00 | 26.5523 | | 4 | 98.00 | 99.00 | 97.00 | 26.8212 | | 5 | 99.50 | 100.00 | 99.00 | 27.5880 | | Average value | 97.10 | 96.30 | 97.90 | 26.5461 | | Reduction 3 | 1 | 92.75 | 87.50 | 98.00 | 18.0780 | | 2 | 96.75 | 97.50 | 96.00 | 19.2992 | | 3 | 97.00 | 96.00 | 98.00 | 18.7243 | | 4 | 97.75 | 99.50 | 96.00 | 20.8482 | | 5 | 98.75 | 100.00 | 97.50 | 20.3507 | | Average value | 96.60 | 96.10 | 97.10 | 19.4601 | | Reduction 4 | 1 | 92.00 | 86.50 | 97.50 | 25.7260 | | 2 | 97.00 | 97.50 | 96.50 | 27.3024 | | 3 | 97.75 | 96.50 | 99.00 | 27.2316 | | 4 | 97.50 | 99.00 | 96.00 | 28.1554 | | 5 | 99.00 | 100.00 | 98.00 | 29.1471 | | Average value | 96.65 | 95.90 | 97.40 | 27.5125 | | Reduction 5 | 1 | 92.75 | 87.50 | 98.00 | 14.3715 | | 2 | 96.75 | 96.00 | 97.50 | 15.2637 | | 3 | 97.50 | 98.00 | 97.00 | 15.8929 | | 4 | 97.75 | 99.00 | 96.50 | 16.2997 | | 5 | 99.50 | 100.00 | 99.00 | 16.6792 | | Average value | 96.85 | 96.10 | 97.60 | 15.7014 |
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