| 数据集 | 1 | 2 | 3 | 4 |
| Vehicle | 846 | 486 | — | — |
| Landsat | 6435 | — | — | — |
| Thyroid | 7200 | 7200 | 760 | 49 |
| Coil2000 | 9822 | 732 | 393 | 393 |
| Penbased | 10992 | 10992 | 7079 | 4001 |
| Letter | 20000 | 4473 | — | — |