corpus: EN collection wave (measure-only, G008)#492
Merged
Conversation
Wave 2 of the approved corpus-expansion plan. Measure-only: no detector
threshold change, no src/features change.
Manifest artifacts/rebaseline-2025/manifest.en.scored.public.jsonl (330 rows,
hash-only): 200 natural-human controls from HAP-E (browndw/human-ai-parallel-corpus,
MIT; balanced academic-summary/blog) + 120 ai-like positives across 3 model
families (gpt 40 / claude 40 / gemini 40) + 5 lightly-edited-ai + 5
heavily-edited-ai (one light + one heavy per register). Raw text stays in the
gitignored private workspace; only hashes/metadata/scores are committed.
Reports (docs/benchmarks/):
- rebaseline-en-latest.{md,json}: accuracy 85.8%, recall 86.9%, FP 15.0%
(EN detection notably stronger than KO).
- rebaseline-low-fpr-en-latest.{md,json}: B4 TPR@1%/5%FPR for en and
en x register. academic-summary/blog supported (blog TPR 88.5% at 5% FPR);
other registers honestly report no_negatives (HAP-E maps only 2 registers).
Overall TPR at low FPR still collapses to 0% (high-scoring human controls).
- rebaseline-audit-en-latest.md: operator audit; 0 mislabeled, 0 too-easy.
Heavy human edits evade detection in 4/5 registers.
Verify: npm test 766/766; npm run benchmark 100% / ROC-AUC 1.000 / PR-AUC 1.000;
benchmark:report, benchmark:robustness, check:no-private-assets, lint all pass.
Contributor
|
The latest updates on your projects. Learn more about Vercel for GitHub.
|
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
Wave 2 of the approved corpus-expansion plan. Measure-only: no detector threshold change, no
src/featureschange.Manifest
artifacts/rebaseline-2025/manifest.en.scored.public.jsonl— 330 hash-only rows:ai-likeacross 3 families (gpt 40 / claude 40 / gemini 40)lightly-edited-ai+ 5heavily-edited-ai(light+heavy per register)Raw text stays gitignored; only hashes/metadata/scores committed.
Findings
no_negatives(HAP-E maps only 2 registers). Overall low-FPR TPR still 0% (high-scoring human controls).Verification
npm test766/766npm run benchmark100% / ROC-AUC 1.000 / PR-AUC 1.000benchmark:report,benchmark:robustness,check:no-private-assets,lintall pass