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feat: retain best checkpoints and support alternate output roots

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crosstyan
2026-03-11 01:14:05 +08:00
parent 63e2ed1097
commit a0150c791f
14 changed files with 852 additions and 9 deletions
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docs/scoliosis_reproducibility_audit.md
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@@ -164,6 +164,7 @@ Conclusion:
- on the same split, `body-only + plain CE` improved that further to `83.16 Acc / 68.24 Prec / 80.02 Rec / 68.47 F1` at `7000`
- a later explicit rerun of the `body-only + plain CE` `7000` full-test eval reproduced that same `83.16 / 68.24 / 80.02 / 68.47` result
- adding back limited head context via `head-lite` did not improve the full-test score; its `7000` checkpoint reached only `78.07 Acc / 65.42 Prec / 80.50 Rec / 62.08 F1`
- the first practical DRF bridge on the same `1:1:2` body-only recipe peaked early and still underperformed the plain skeleton baseline; its best retained `2000` checkpoint reached only `80.21 Acc / 58.92 Prec / 59.23 Rec / 57.84 F1` on the full test set
### Not reproducible with current evidence
@@ -179,6 +180,10 @@ Conclusion:
- the `1:1:8` class ratio is not just a nuisance; it appears to be a major driver of the current skeleton/DRF failure mode
- on the easier `1:1:2` split, weighted CE is not currently the winning recipe; the best local full-test result so far came from plain CE
- `head-lite` may help the small fixed proxy subset, but that gain did not transfer to the full `TEST_SET`, so `body-only + plain CE` remains the best practical skeleton recipe
- DRF currently looks worse than the plain skeleton baseline not because the skeleton path is dead, but because the additional prior branch is not yet providing a selective or stable complement. The current local evidence points to three likely causes:
- the body-only skeleton baseline already captures most of the useful torso signal on `1:1:2`, so PAV may be largely redundant in this setting
- the current PGA/PAV path appears weakly selective in local diagnostics, so the prior is not clearly emphasizing a few clinically relevant parts
- DRF peaks very early and then degrades, which suggests the added branch is making optimization less stable without improving the final decision boundary
## Recommended standard for future work in this repo