Struct GroundIndex 

pub struct GroundIndex { /* private fields */ }

Precomputed, graph-invariant inputs to grounding — the per-node BM25F token fields and lowercased titles. Built ONCE per graph via GroundIndex::build; grounding many queries against one graph reuses it instead of rebuilding it every call.

Implementations

impl GroundIndex

pub fn build(graph: &Graph) -> Self

Precompute the ground inputs for graph with the FROZEN ranker calibration (one O(N) pass).

pub fn build_with_config(graph: &Graph, config: RankerConfig) -> Self

Precompute the ground inputs with an explicit RankerConfig — the injection seam for the dev-only parameter sweep. Production/eval callers use GroundIndex::build (frozen).

pub fn candidates(&self, terms: &[String]) -> Option<Vec<usize>>

Narrow the candidate set using the trigram index. Returns None if narrowing isn’t possible (short terms) — caller falls back to scanning all. Returns Some(indices) — the node indices that MIGHT match (superset; final scoring decides).

Trait Implementations

impl Clone for GroundIndex

fn clone(&self) -> GroundIndex

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.