Struct AhCodebook 

pub struct AhCodebook { /* private fields */ }

Implementations

impl AhCodebook

pub fn train( residuals: &[f32], points: usize, dimension: usize, dimensions_per_block: usize, iterations: usize, seed: u64, ) -> ScannResult<Self>

pub fn from_artifact( dimension: usize, artifact: &ScannAhCodebook, ) -> ScannResult<Self>

pub fn from_artifact_ref( dimension: usize, artifact: ScannAhCodebookRef<'_>, ) -> ScannResult<Self>

Decode only the small AH codebook from a borrowed global-artifact view. Routing centroid planes remain mmap-backed in the executable model.

pub fn to_artifact(&self) -> ScannAhCodebook

pub fn dimension(&self) -> usize

pub fn dimensions_per_block(&self) -> usize

pub fn blocks(&self) -> usize

pub fn code_bytes(&self) -> usize

pub fn estimated_memory_bytes(&self) -> usize

pub fn encode( &self, residual: &[f32], original: &[f32], anisotropic_threshold: f32, codes: &mut [u8], ) -> ScannResult<()>

Encode one residual with ScaNN’s anisotropic direction-aware objective. Codes are unpacked nibbles to make streaming FastScan transposition cheap.

pub fn encode_with_scratch( &self, residual: &[f32], original: &[f32], anisotropic_threshold: f32, codes: &mut [u8], scratch: &mut AhEncodeScratch, ) -> ScannResult<()>

pub fn encode_packed( &self, residual: &[f32], original: &[f32], anisotropic_threshold: f32, output: &mut [u8], ) -> ScannResult<()>

pub fn query_dot_product(&self, query: &[f32]) -> ScannResult<AhQuery>

Trait Implementations

impl Clone for AhCodebook

fn clone(&self) -> AhCodebook

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AhCodebook

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

Formats the value using the given formatter.

impl PartialEq for AhCodebook

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for AhCodebook