Table 13.
Ablation study: contribution of each architectural and preprocessing component (hold-out set).
| Variant | CNN accuracy (%) |
CNN macro-F1 (%) |
CNN-KNN accuracy (%) | CNN-KNN macro-F1 (%) |
|---|---|---|---|---|
| Full model (multi-scale MICA) | 93.67 | 93.39 | 96.58 | 96.49 |
| No SE attention | 87.19 | 86.61 | 95.73 | 95.54 |
| MICA σ = 60 only | 87.33 | 86.88 | 94.73 | 94.53 |
| MICA σ = 30 only | 87.47 | 87.01 | 94.45 | 94.24 |
| MICA σ = 15 only | 87.69 | 87.30 | 94.38 | 94.16 |
| No MICA | 86.19 | 85.53 | 93.52 | 93.25 |
| No residual connection | 83.20 | 82.27 | 93.45 | 93.19 |
| Bare backbone (no SE, no residual) | 82.70 | 82.00 | 93.38 | 93.13 |
| No dilation | 85.77 | 85.04 | 93.31 | 93.06 |