Research Article
δ-Cut Decision-Theoretic Rough Set Approach: Model and Attribute Reductions
Table 9
The comparison between decision-monotonicity criterion based reducts and cost based reducts (Zoo).
| | Approximation qualities | Run times (s) | Algorithm 1 | Algorithm 2 | Algorithm 1 | Algorithm 2 |
| 0.1 | 0.4257 ± 0.0000 | 0.2644 ± 0.2690 | 0.0938 ± 0.0163 | 4.2872 ± 0.4856 | 0.2 | 0.4257 ± 0.0000 | 0.2911 ± 0.3063 | 0.0915 ± 0.0053 | 4.4342 ± 0.1583 | 0.3 | 0.4257 ± 0.0000 | 0.3762 ± 0.2777 | 0.0961 ± 0.0032 | 4.7973 ± 0.4250 | 0.4 | 0.4257 ± 0.0000 | 0.3257 ± 0.2638 | 0.0877 ± 0.0065 | 4.4749 ± 0.4790 | 0.5 | 0.0257 ± 0.0337 | 0.3277 ± 0.3271 | 0.2077 ± 0.1580 | 4.1559 ± 0.3482 | 0.6 | 0.3614 ± 0.0365 | 0.7129 ± 0.0417 | 0.3875 ± 0.0067 | 4.4908 ± 0.5544 | 0.7 | 0.6683 ± 0.0857 | 0.8554 ± 0.0896 | 0.3477 ± 0.0757 | 5.2780 ± 1.1886 | 0.8 | 0.7792 ± 0.0871 | 0.9564 ± 0.0344 | 0.3747 ± 0.0244 | 6.6658 ± 1.6919 | 0.9 | 0.9406 ± 0.0000 | 1.0000 ± 0.0000 | 0.3857 ± 0.0048 | 6.4638 ± 1.4479 | 1.0 | 1.0000 ± 0.0000 | 1.0000 ± 0.0000 | 0.3799 ± 0.0143 | 6.5578 ± 1.8033 |
| Mean values | 0.5478 ± 0.0243 | 0.6110 ± 0.1610 | 0.2452 ± 0.0315 | 5.1806 ± 0.8582 |
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