Research Article
An Efficient Cost-Sensitive Feature Selection Using Chaos Genetic Algorithm for Class Imbalance Problem
Table 2
Operation cost metrics.
| Feature level | Lev. 1 features | Lev. 2 features | Lev. 3 features | Lev. 4 features |
| Relative magnitudes | 1 | 5 | 10 | 100 |
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