27319947468
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Ran 11 Jun 2026 02:34AM UTC

Jobs 1

Files 7

Run time 1min

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Committed 11 Jun 2026 02:33AM UTC coverage: 85.137%. Remained the same

Build # 27319947468

Build Type

push

github

Committed by

freeeve

Commit Message

feat(rust): RRSB BM25 impact sidecar — additive lexical scoring for the term index

New .rrb format and bm25 module (terms feature): one quantized impact byte
per (term, doc) with the document-length norm folded in at build time, keyed
by each term's posting-region head_off so the .rrt is untouched and a
resolved query term addresses its impacts directly. Reader holds the header
plus an RRS-style sparse entry index; rerank fetches one coalesced
entry-stripe wave and one coalesced impact-byte wave, scoring
sum(idf x dequantized impact) with df from posting cardinality and N from
the header. A candidate's byte address is posting.rank(doc)-1, so the
posting bitmap the term search already fetched is the addressing structure.

search_bm25 intersects the query postings, takes the first m candidates in
static-rank order, and returns the top k by BM25. TermIndex gains
query_postings (full postings keyed by head_off) and dict_terms (the
build-side dictionary scan write_impacts joins against, keeping head_off
keys byte-true to the on-disk layout; tokenizer mismatch fails loudly).

Tests include brute-force BM25 equivalence over a 200-doc corpus, candidate
window bounding, and rerank promoting high-tf docs over static rank.

Coverage Stats

653 of 767 relevant lines covered (85.14%)

11.67 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	27319947468.1	11 Jun 2026 02:34AM UTC	7	85.14	GitHub Action Run

freeeve / roaringrange / 27319947468
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