Struct IndexConfig 

pub struct IndexConfig {
    pub num_tables: usize,
    pub bits_per_table: usize,
    pub multiprobe: bool,
    pub seed: u64,
}

Tuning for SaeCandidateIndex::build. All fields are explicit so the index never reads global state; no CLI flags.

Fields

num_tables: usize

Number of independent LSH tables. More tables → higher recall, more work.

bits_per_table: usize

Random hyperplanes per table (signature bit-width). More bits → finer buckets (fewer collisions, lower recall per table).

multiprobe: bool

Whether to also probe Hamming-distance-1 neighbouring buckets per table (multi-probe LSH). Cheap and a large recall win; kept on by default.

seed: u64

Master seed for all hyperplane banks.

Implementations

impl IndexConfig

pub fn auto(sketch_dim: usize, num_atoms: usize, seed: u64) -> Self

A default configuration sized for a sketch of dimension sketch_dim and roughly num_atoms atoms. Chooses bits_per_table ≈ log2(num_atoms) (capped by the sketch dimension) so the expected bucket occupancy is a small constant, and a handful of tables for recall — both grow only logarithmically in num_atoms, keeping queries sublinear.

Trait Implementations

impl Clone for IndexConfig

fn clone(&self) -> IndexConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for IndexConfig

impl Debug for IndexConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.