Struct ScalarQuantizer 

pub struct ScalarQuantizer { /* private fields */ }

Scalar quantizer for compressing float32 vectors

Implementations

impl ScalarQuantizer

pub fn new(config: QuantizationConfig) -> Self

Create a new scalar quantizer

pub fn fit(&mut self, vectors: &[Vec<f32>]) -> Result<()>

Fit quantizer to training data

Computes per-dimension min/max values for quantization.

pub fn quantize(&self, vector: &[f32]) -> Vec<u8>

Quantize a float32 vector to uint8/int8

pub fn dequantize(&self, quantized: &[u8]) -> Vec<f32>

Dequantize a uint8/int8 vector back to float32

pub fn quantize_batch(&self, vectors: &[Vec<f32>]) -> Vec<Vec<u8>>

Quantize multiple vectors

pub fn dequantize_batch(&self, quantized: &[Vec<u8>]) -> Vec<Vec<f32>>

Dequantize multiple vectors

pub fn quantized_distance(&self, a: &[u8], b: &[u8]) -> f32

Compute approximate distance between quantized vectors

This is faster than dequantizing and computing distance on float32. Uses SIMD-optimized Manhattan distance for maximum performance.

pub fn compression_ratio(&self) -> f32

Get compression ratio

pub fn memory_savings(&self) -> f32

Get memory savings percentage

pub fn is_fitted(&self) -> bool

Check if quantizer is fitted

pub fn dimensions(&self) -> usize

Get number of dimensions

Trait Implementations

impl Clone for ScalarQuantizer

fn clone(&self) -> ScalarQuantizer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScalarQuantizer

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ScalarQuantizer

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ScalarQuantizer

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.