ScreenProof / robustness /README.md
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Add eval-2026-11-10 robustness analyses; preserve original dataset splits
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Frozen-prediction robustness analyses

Post-hoc exclusion sensitivity, not new ground truth or retraining. IoU 0.5; 10,000 paired whole-cluster resamples. All predictions and rules are frozen for this analysis.

subset pages base clusters ProofJudge F1 Argon F1 delta 95% CI
unfiltered 2871 486 0.478 0.360 [+0.088, +0.148]
published 2765 469 0.481 0.372 [+0.079, +0.140]
audit_excluded 2680 460 0.489 0.377 [+0.080, +0.141]
structural_quarantine 2581 460 0.506 0.395 [+0.078, +0.143]
convention_sensitivity 1766 457 0.627 0.397 [+0.187, +0.271]

Exclusions are cumulative after published: author-audit exclusions; drop/reorder; component transplants and local-icon. Entire records are quarantined, never relabelled clean. The last subset changes task coverage and is not a replacement benchmark.

Base clusters merge source generator + base page across general/local/multi/negative variants; requirement clusters further merge generator/design language/theme. Real pages use URL/page identity, then hostname/app. Neither grouping corrects test-informed selection.

Published-pool diagnostics

model F1 clean flagged scoring errors normalized kind right / matched known aspect right / matched known
rolejudge-v7f-r128soup-cut 0.481 7.4% 0 839/848 267/304
gemini-4-argon 0.372 17.8% 0 709/853 282/504
claude-opus-5-5-medium 0.308 78.3% 0 898/1064 283/611
gpt-6.1-sol 0.300 36.6% 3 710/805 196/395
rolejudge-v7f-r128soup 0.455 51.6% 0 1038/1058 385/443
rolejudge-v7f-2500-cut 0.405 6.9% 0 679/688 182/223
qwen3.5-9b-base 0.043 87.8% 282 428/603 214/408

Kind maps the consistency-prompt label inconsistent to the stored label brand; no other alias is mapped. Kind/aspect accuracy is conditional on matched boxes with known labels. It is not explanation correctness. Errors follow the existing scorer (non-dict answer), not a strict schema validator.

Requirement-cluster intervals

{ "clusters": 121, "min_size": 1, "max_size": 414, "vs": { "gemini-4-argon": { "delta": 0.10899280004942724, "ci95": [ 0.04467793849992695, 0.17696848361181572 ] }, "claude-opus-5-5-medium": { "delta": 0.1730305063027215, "ci95": [ 0.14083593515714832, 0.20652628574165327 ] }, "gpt-6.1-sol": { "delta": 0.1808314426852562, "ci95": [ 0.13080445467071503, 0.22946292326254902 ] }, "rolejudge-v7f-r128soup": { "delta": 0.02514385754245596, "ci95": [ 0.005967370588310595, 0.04313225869484571 ] }, "rolejudge-v7f-2500-cut": { "delta": 0.07576445358264244, "ci95": [ 0.03961699314203121, 0.10928092511103336 ] }, "qwen3.5-9b-base": { "delta": 0.4375702111145328, "ci95": [ 0.3703972864951111, 0.4854255803273521 ] } } }

Public reproduction

Run python robustness.py --data-dir . --output recomputed.json (Python + NumPy). records.jsonl contains per-record sufficient statistics for frozen predictions, opaque cluster IDs and exclusion flags. Original release IDs (ct-*) are preserved. The 106 excluded-* records have counts only; their screenshots are not added to the original dataset. This reproduces statistical reanalysis, not model inference. The original Parquet splits and their labels remain unchanged.

The historical implementation recorded in results.json belongs to the paper workspace; the portable command above requires only files in this release. No independent blind human validation or new training-data ablation is claimed.