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TwoStageIndex

ruvector_matryoshka

Struct TwoStageIndex 

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pub struct TwoStageIndex { /* private fields */ }
Expand description

Coarse HNSW at coarse_dim, then full-dim rerank of the candidate set.

Distance ops breakdown:

  • Graph traversal: O(ef × M) comparisons at coarse_dim dims
  • Rerank: O(candidates) comparisons at full_dim dims

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impl Searcher for TwoStageIndex

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fn build(config: &MatryoshkaConfig, vectors: &[Vec<f32>]) -> Self

Build an index over the provided full-dim vectors.
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fn search(&self, query: &[f32], k: usize, ef: usize) -> Vec<usize>

Return approximate top-k full-dim nearest-neighbour node ids.
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fn name(&self) -> &'static str

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