Table 6.
Comparison table of average feature selection size and standard deviation between MSCSO and other optimization algorithms (Bold indicates better data performance).
| Dataset | Measures | MSCSO | SCSO | MFO | SSA | FVIM | AOA | SCA | PSO | DO | SFO |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Zoo | Mean | 5.95 | 6.2 | 6.15 | 7.05 | 6 | 6.2 | 7.1 | 7.15 | 5.95 | 8.15 |
| Std | 0.3940 | 0.6156 | 0.5871 | 0.7592 | 0.6489 | 0.8335 | 0.5525 | 0.4894 | 0.6048 | 2.1831 | |
| Wine | Mean | 3.65 | 3.8 | 3.9 | 4.55 | 3.9 | 3.65 | 4.3 | 4.25 | 3.85 | 5.15 |
| Std | 0.4894 | 0.6156 | 0.3078 | 0.6048 | 0.4472 | 0.4894 | 0.5712 | 0.6387 | 0.4894 | 1.0894 | |
| Vote | Mean | 4.3 | 4.8 | 4.4 | 4.95 | 4.6 | 4.9 | 4.75 | 4.85 | 4.45 | 4.8 |
| Std | 0.6569 | 1.1517 | 0.9403 | 1.2763 | 0.9947 | 1.0208 | 0.9665 | 0.8127 | 0.7592 | 1.3992 | |
| Lymphography | Mean | 8.25 | 8.45 | 8.9 | 9.45 | 9.1 | 9.25 | 8.5 | 9.1 | 8.75 | 9.15 |
| Std | 1.4824 | 0.9987 | 1.2937 | 1.0501 | 1.0208 | 1.1180 | 1.3955 | 1.0711 | 1.2085 | 1.4965 | |
| HeartEW | Mean | 4 | 4.85 | 4.25 | 5.75 | 4.25 | 4.95 | 5.85 | 6.1 | 4.95 | 5.35 |
| Std | 0.8584 | 1.2680 | 1.0195 | 1.4096 | 0.8507 | 1.7614 | 1.2680 | 1.5526 | 1.5035 | 1.1821 | |
| Sonar | Mean | 25.9 | 27.65 | 29.9 | 30.15 | 28.65 | 29.95 | 29.85 | 31 | 29.15 | 28.1 |
| Std | 1.4832 | 2.1095 | 2.2688 | 2.2308 | 2.4554 | 2.0894 | 2.1588 | 1.5560 | 1.8994 | 2.5526 | |
| SpectEW | Mean | 10.45 | 11.4 | 12.55 | 12.6 | 12.4 | 12.75 | 13.15 | 12.15 | 12.2 | 9.7 |
| Std | 2.2355 | 2.1619 | 2.2355 | 2.6238 | 2.3486 | 1.9160 | 2.1588 | 2.7961 | 2.0417 | 1.5927 | |
| Lung-Cancer | Mean | 23.9 | 26.1 | 28.2 | 29.45 | 27.65 | 26.9 | 28.8 | 30.05 | 27.25 | 25.55 |
| Std | 2.5319 | 2.9182 | 1.9084 | 2.4810 | 2.2775 | 3.1606 | 3.6935 | 2.1145 | 1.9160 | 3.0517 | |
| BreastEW | Mean | 8.85 | 9.35 | 10.1 | 10.65 | 9.9 | 10 | 10.45 | 10.95 | 9.7 | 10.9 |
| Std | 0.8127 | 0.8127 | 0.9119 | 1.5313 | 1.2096 | 1.1239 | 1.1910 | 0.9987 | 0.9787 | 1.1653 | |
| CongressEW | Mean | 2.65 | 3 | 3.15 | 4.2 | 3.15 | 3.1 | 4.25 | 4.45 | 2.95 | 4.65 |
| Std | 0.4894 | 0.7947 | 0.6708 | 1.0052 | 0.8127 | 0.5525 | 0.6387 | 0.8870 | 0.9445 | 1.6311 | |
| Clean1 | Mean | 89.65 | 95.8 | 97 | 99.7 | 99.1 | 95.35 | 94.5 | 102.6 | 95.6 | 80.15 |
| Std | 9.1495 | 10.2834 | 8.4043 | 10.4584 | 8.9731 | 8.7856 | 9.7306 | 5.4328 | 7.9763 | 6.8077 | |
| Exactly | Mean | 6.05 | 6.25 | 6.5 | 7.15 | 6.2 | 6.25 | 6.95 | 6.95 | 6.1 | 6.5 |
| Std | 0.2236 | 0.4443 | 0.5130 | 0.4894 | 0.4104 | 0.4443 | 0.3940 | 0.5104 | 0.3078 | 2.1643 | |
| Exactly2 | Mean | 1 | 1.25 | 1.35 | 1.85 | 1.25 | 1.15 | 2.15 | 2.2 | 1.05 | 2.45 |
| Std | 0 | 0.4443 | 0.4894 | 0.7452 | 0.4443 | 0.3663 | 0.5871 | 0.8944 | 0.2236 | 0.8256 | |
| M-of-n | Mean | 6.1 | 6.15 | 6.35 | 6.85 | 6.15 | 6.15 | 6.8 | 6.9 | 6.3 | 7.1 |
| Std | 0.3078 | 0.3663 | 0.4894 | 0.6708 | 0.3663 | 0.3663 | 0.6156 | 0.4472 | 0.4702 | 1.6827 | |
| VP | Mean | 52.25 | 55.6 | 58.8 | 58 | 59.1 | 59.75 | 57.25 | 67.3 | 57.65 | 54.25 |
| Std | 2.2449 | 3.6907 | 3.9815 | 4.3649 | 4.9407 | 4.3271 | 5.4374 | 2.9753 | 6.5154 | 5.4374 | |
| Avg. rank | 1.13 | 3.27 | 5.07 | 7.33 | 4.53 | 5.13 | 6.00 | 7.80 | 3.47 | 5.47 | |