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RankHooks

scc_engine::ranking

Struct RankHooks 

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pub struct RankHooks {
    pub seed_providers: Vec<SeedProvider>,
    pub features: Vec<RankFeatureFn>,
    pub rerankers: Vec<RerankerFn>,
    pub edge_weights: Vec<EdgeWeightFn>,
    pub similarities: Vec<SimilarityFn>,
    pub candidates: Vec<CandidateProvider>,
    pub profiles: BTreeMap<String, BlendWeights>,
}

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§seed_providers: Vec<SeedProvider>§features: Vec<RankFeatureFn>§rerankers: Vec<RerankerFn>§edge_weights: Vec<EdgeWeightFn>§similarities: Vec<SimilarityFn>

Pairwise item similarity for MMR diversification. First provider returning a nonzero value wins (deterministic chain order); the built-in default (same-group => 1.0) runs last.

§candidates: Vec<CandidateProvider>

Extra candidate providers (spec 18): merged with the lexical base by canonical id, max score wins. Deterministic chain order.

§profiles: BTreeMap<String, BlendWeights>

Named blend profiles: profile name -> per-feature weight overrides for the linear blend (feature keys: task_ppr, global_ppr, lexical, semantic, confidence, criticality, change_risk, novelty). Missing keys keep default weights. Applied inside the same linear math; recorded in reasons.

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impl Default for RankHooks

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fn default() -> Self

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