Stage 18: R1/R2 falsified by frozen gates; fair-comparison protocol; G wiring
Clause mode moved maud pool +0.023 (needed +0.05) and cost contractnli -0.072; phrase bigrams strongly negative (lexR4 0.406->0.249) - both recorded falsified. Fair500 chunk-matched row shows raw BM25 at/below the paper's embedding baselines: the stack's edge is pool+rerank+ contract, not the retriever. Locked three-mode scoring protocol (answered-only 0.505 / forced 0.4375 / zero-credit 0.4236) for all future headline reports incl. the one-shot Stage 19 holdout. Runner gains --stitch (post-rerank same-doc span merge, baseline unstitched). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012AgUm5EcRKbT3duVFMbrQD
| Repository | eliziff/Beaver |
|---|---|
| Author | Eli Ziff <eliasziff@gmail.com> |
| Authored | |
| Parents | 1b002e3b |
| Stats | 3 files changed , +182 , -2 |
| Part of | Legal grounding and retrieval research |
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