Function budgeted_maxsim

nodedb-vector/src/multivec/scoring.rs:64–72

Budgeted MaxSim: only uses the first `budget` query vectors (Matryoshka ordering). When `budget` equals or exceeds `query.len()` this is equivalent to `maxsim`. Returns 0.0 if either side is empty or budget is 0.

(
    query: &[Vec<f32>],
    doc: &[Vec<f32>],
    budget: u8,
    metric: DistanceMetric,
)

///
/// Returns 0.0 if either side is empty or budget is 0.
pub fn budgeted_maxsim(
    query: &[Vec<f32>],
    doc: &[Vec<f32>],
    budget: u8,
    metric: DistanceMetric,
) -> f32 {
    let effective = (budget as usize).min(query.len());
    maxsim(&query[..effective], doc, metric)
}

// ---------------------------------------------------------------------------
// Tests