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Confusion matrices for UM and Canadian data of ROI artifacts.
| UM (4 features/5–7 features) | Positive | Negative |
|---|---|---|
| Predicted positive | 26/25 | 10/5 |
| Predicted negative | 9/10 | 19/24 |
| Canada (5 features/7 features) | Positive | Negative |
| Predicted positive | 81/73 | 47/29 |
| Predicted negative | 24/32 | 192/210 |
