Stage 18 R2: phrase-bigram FTS terms + four-arm retrieval ablation
passageQueryPhrases pairs adjacent content words from the ORIGINAL
query (pairing the stopword-filtered stream would fabricate phrases);
searchPassages gains phrases option, additive OR phrase terms. Ablate
script gains --stage18: {chars,clause} x {plain,phrases} at
t1600/o120/w16 over all 776 gold tests, per-source lexR4 + poolR48,
JSONL receipts. 16/16 unit tests.
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 | 8abce3be |
| Stats | 3 files changed , +200 , -43 |
| Part of | Legal grounding and retrieval research |
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