Table 2.
Number of paired samples for human-machine rating.
| Human review/machine review | Level 1 | Level 2 | Level 3 | Level 4 |
|---|---|---|---|---|
| Level 1 | 157 | 62 | 47 | 2 |
| Level 2 | 27 | 214 | 48 | 25 |
| Level 3 | 1 | 34 | 216 | 58 |
| Level 4 | 2 | 4 | 28 | 123 |
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