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Distribution list of ROI sample datasets.
| ROI dataset | Number of nodules | Number of nonnodules |
|---|---|---|
| Original training samples | 75 | 454 |
|
| ||
| Balanced training samples by SMOTE method | 375 | 454 |
|
| ||
| Balanced training samples by RU-SMOTE method | 225 | 227 |
|
| ||
| Testing data | 75 | 454 |
