Enum HashAlgorithm 

pub enum HashAlgorithm {
    FnvModular,
    JLProjection {
        seed: u64,
    },
}

Hash algorithm selection for the HashEmbedder.

Variants

FnvModular

FNV-1a with modular projection. Default. Deterministic, fast, simple.

Each token hashes to a single dimension index, accumulating a sign derived from the hash’s high bit.

JLProjection

Johnson-Lindenstrauss random hyperplane projection.

Each token’s contribution is spread across all dimensions using an xorshift64 PRNG seeded from the token hash. Provides formal distance-preservation guarantees from the JL lemma.

Fields

seed: u64

Seed for the xorshift64 PRNG (combined with token hash).

Trait Implementations

impl Clone for HashAlgorithm

fn clone(&self) -> HashAlgorithm

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HashAlgorithm

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

Formats the value using the given formatter.

impl PartialEq for HashAlgorithm

fn eq(&self, other: &HashAlgorithm) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for HashAlgorithm

impl Eq for HashAlgorithm

impl StructuralPartialEq for HashAlgorithm