Struct ProductQuantizerConfig 

pub struct ProductQuantizerConfig {
    pub dim: usize,
    pub num_subvectors: usize,
    pub bits_per_subvector: usize,
}

Product Quantization configuration

Fields

dim: usize

Original vector dimension

num_subvectors: usize

Number of subvectors

bits_per_subvector: usize

Bits per subvector (number of centroids = 2^bits)

Implementations

impl ProductQuantizerConfig

pub fn default_for_dim(dim: usize) -> Self

Create a default PQ config for given dimension

Uses 8 subvectors with 8 bits (256 centroids) each by default.

pub fn subvector_dim(&self) -> usize

Dimension of each subvector

pub fn num_centroids(&self) -> usize

Number of centroids per subvector

pub fn compressed_size(&self) -> usize

Compressed size in bytes

Trait Implementations

impl Clone for ProductQuantizerConfig

fn clone(&self) -> ProductQuantizerConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProductQuantizerConfig

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ProductQuantizerConfig

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ProductQuantizerConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.