Struct ProductQuantized 

pub struct ProductQuantized {
    pub codes: Vec<u8>,
    pub codebooks: Vec<Vec<Vec<f32>>>,
}

Product quantization (8-16x compression)

Fields

codes: Vec<u8>

Quantized codes (one per subspace)

codebooks: Vec<Vec<Vec<f32>>>

Codebooks for each subspace

Implementations

impl ProductQuantized

pub fn train( vectors: &[Vec<f32>], num_subspaces: usize, codebook_size: usize, iterations: usize, ) -> Result<Self>

Train product quantization on a set of vectors

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

Quantize a vector using trained codebooks

Trait Implementations

impl Clone for ProductQuantized

fn clone(&self) -> ProductQuantized

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProductQuantized

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ProductQuantized

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ProductQuantized

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

where __S: Serializer,

Serialize this value into the given Serde serializer.