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The statistics of used datasets. Pos.%: positive sample ratio.
| Pretrain | # Images | # Reports | # Classes |
|---|---|---|---|
| MIMIC-CXR | 377,111 | 201,063 | – |
| CheXpert | 223,415 | – | 14 |
| Evaluation | # Train (Pos.%) | # Test (Pos.%) | # Classes |
| CheXpert-5x200 | 1,000 (−) | 1,000 (−) | 5 |
| MIMIC-5x200 | 1,000 (−) | 1,000 (−) | 5 |
| COVID | 2,162(19%) | 3,000 (49%) | 2 |
| RSNA | 8,486 (50%) | 3,538 (50%) | 2 |
