Research Article
Constructing Better Classifier Ensemble Based on Weighted Accuracy and Diversity Measure
Table 5
The classification correct rate (%) of subensembles selected by candidate measures and GA using a pairwise t-test at a 95% significance level.
| | Dataset | WAD | Kappa-Error | GenDiv | Acc-Only | Div-Only | No-Selection |
| | Hepatitis | 85.31 ± 1.5 | 81.09 ± 1.65 (5.98) | 78.21 ± 1.1 (12.07) | 79.2 ± 0.82 (11.3) | 86.25 ± 0.97 (−1.67) | 80.76 ± 2.14 (5.5) | | Autos | 79.67 ± 0.92 | 81.13 ± 0.23 (−4.87) | 74.66 ± 0.86 (12.58) | 79.86 ± 2.52 (−0.23) | 77.48 ± 0.52 (6.55) | 75.61 ± 3.25 (3.8) | | Heart-statlog | 85.5 ± 2.14 | 83.47 ± 0.5 (2.92) | 83.67 ± 1.01 (2.44) | 83.25 ± 2.26 (2.28) | 79.84 ± 2.28 (5.72) | 81.3 ± 0.94 (5.68) | | Ionosphere | 93.86 ± 1.27 | 92.07 ± 1.94 (2.44) | 95.19 ± 1.42 (−2.21) | 93.58 ± 0.88 (0.57) | 92.06 ± 2.1 (2.31) | 91.72 ± 1.75 (3.12) | | Credit-a | 88.63 ± 1.29 | 86.82 ± 0.98 (3.53) | 86.37 ± 2.69 (2.39) | 86.81 ± 0.6 (4.04) | 84.03 ± 0.54 (10.4) | 85.62 ± 2.34 (3.56) | | Diabetes | 83.78 ± 0.87 | 83.77 ± 0.4 (0.03) | 79.75 ± 2.66 (4.55) | 75.86 ± 0.78 (21.43) | 72.77 ± 2.42 (13.53) | 77.54 ± 2.43 (7.64) | | Vehicle | 78.67 ± 0.69 | 74.7 ± 1.24 (8.84) | 74.65 ± 1.29 (8.68) | 70.28 ± 2.31 (11) | 71.45 ± 1.01 (18.66) | 74.76 ± 1.87 (6.2) | | Car | 94.81 ± 1.16 | 92.71 ± 0.71 (4.88) | 95.05 ± 0.61 (−0.58) | 89.97 ± 0.4 (12.47) | 95.18 ± 2.6 (−0.42) | 93.7 ± 2.01 (1.51) | | cmc | 70.34 ± 1.43 | 54.41 ± 1.24 (26.61) | 71.87 ± 0.33 (−3.3) | 64 ± 2.09 (7.91) | 59.19 ± 2.86 (11.02) | 53.31 ± 1.4 (26.91) | | Segment | 98.58 ± 1.76 | 97.58 ± 2.79 (0.95) | 97.78 ± 0.33 (1.41) | 98.67 ± 0.49 (−0.16) | 93.77 ± 1.13 (7.27) | 97.49 ± 0.46 (1.89) | | kr-vs-kp | 97.09 ± 0.35 | 96.07 ± 1.91 (1.66) | 96.04 ± 2.39 (1.37) | 91.66 ± 2.52 (6.74) | 93.13 ± 1.05 (11.31) | 95.28 ± 0.65 (7.75) | | Hypothyroid | 93.22 ± 0.68 | 90.28 ± 1.35 (6.15) | 89.45 ± 1.73 (6.41) | 89.84 ± 1.9 (5.29) | 88.98 ± 1.65 (7.51) | 90.4 ± 0.69 (9.2) | | Waveform | 86.06 ± 1.42 | 86.08 ± 0.4 (−0.05) | 83.68 ± 0.36 (5.13) | 80.42 ± 1.72 (7.99) | 84.05 ± 0.28 (4.39) | 83.6 ± 1.58 (3.66) | | Page-blocks | 95.8 ± 1.22 | 92.92 ± 1.79 (4.2) | 96.16 ± 0.21 (−0.92) | 95.92 ± 2.51 (−0.14) | 91.67 ± 2.4 (4.85) | 93.57 ± 1.77 (3.28) | | Nursery | 95.02 ± 0.99 | 93.45 ± 2.46 (1.87) | 92.56 ± 1.51 (4.3) | 93.41 ± 1.73 (2.55) | 95.52 ± 1.66 (−0.82) | 92.41 ± 1.56 (4.46) |
| | Absolute w/l/t | | 13/2/0 | 11/4/0 | 12/3/0 | 12/3/0 | 15/0/0 | | Significant w/l/t | | 9/1/5 | 9/2/4 | 11/0/4 | 12/0/3 | 13/0/2 |
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