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Leave-one-school-out evaluation
| Held-out school | Test N (samples) | Fusion accuracy (%) | IMU-only accuracy (%) | Scale-only accuracy (%) |
|---|---|---|---|---|
| A | 1,520 | 89.2 ± 0.5 | 80.1 ± 0.7 | 77.3 ± 0.8 |
| B | 1,392 | 88.4 ± 0.6 | 79.4 ± 0.8 | 76.8 ± 0.9 |
| C | 1,008 | 86.7 ± 0.7 | 78.5 ± 0.9 | 75.6 ± 1.0 |
| Mean across folds | — | 88.1 ± 1.3 | 79.3 ± 0.8 | 76.6 ± 0.9 |
Per-fold accuracy is reported as mean ± SD over ten random seeds; the bottom row reports the mean across the three fold means together with the standard deviation across folds
