Struct SparseBuildParams 

pub struct SparseBuildParams {
    pub postings_per_term: usize,
    pub block_fraction: f32,
    pub summary_energy: f32,
    pub transpose_budget: usize,
    pub seed: u64,
    pub half_values: bool,
}

Build-time parameters.

Fields

postings_per_term: usize

Postings kept per coordinate (the largest values); usize::MAX keeps every posting.

block_fraction: f32

Blocks per kept list as a fraction of its length (at least one block).

summary_energy: f32

Fraction of a summary’s mass its kept coordinates must carry; 1 keeps all of them.

transpose_budget: usize

Postings transposed at once during the build (bounds the build’s working memory).

seed: u64

Seed of the centroid sample.

half_values: bool

Store forward values as half floats (2 bytes, relative error below 2^-11); scores are then exact inner products with the rounded values.

Implementations

impl SparseBuildParams

pub fn exact() -> Self

Parameters under which a search with SparseSearchParams::exact is exact.

Trait Implementations

impl Clone for SparseBuildParams

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SparseBuildParams

impl Debug for SparseBuildParams

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

Formats the value using the given formatter.

impl Default for SparseBuildParams

fn default() -> Self

Returns the “default value” for a type.