Module hybrid 

Hybrid semantic + keyword search with Reciprocal Rank Fusion (RRF).

HybridIndex wraps a SearchIndex (dense vector search) and a Bm25Index (BM25 keyword search) and fuses their ranked results via Reciprocal Rank Fusion so that chunks appearing high in either list bubble to the top of the combined ranking.

Structs

HybridIndex

Combined semantic + keyword search index with RRF fusion.

ParseSearchModeError

Error returned when a SearchMode string cannot be parsed.

Enums

SearchMode

Controls which retrieval strategy is used during search.

Functions

boost_with_pagerank

Apply a multiplicative PageRank boost to search results.

boost_with_pagerank_results

boost_with_pagerank variant that operates on SearchResult directly, for callers that don’t have the raw (usize, f32) pair at hand.

pagerank_boost_factor

Sigmoid-shaped multiplicative boost factor for a single PageRank percentile in the corpus (not the raw rank value).

pagerank_lookup

Build a normalized PageRank lookup table from a [RepoGraph].

rrf_fuse

Reciprocal Rank Fusion of two ranked lists.