Struct IvfPqConfig 

pub struct IvfPqConfig {
    pub nclusters: usize,
    pub nsubvectors: usize,
    pub nbits: usize,
    pub nprobe: usize,
    pub metric: DistanceMetric,
    pub max_kmeans_iterations: usize,
    pub kmeans_tolerance: f32,
}

IVF-PQ configuration

Fields

nclusters: usize

Number of clusters (partitions) for IVF Typical values: 256, 1024, 4096 More clusters = faster search but more memory

nsubvectors: usize

Number of sub-vectors for product quantization Typical values: 8, 16, 32, 64 More sub-vectors = better accuracy but more memory

nbits: usize

Number of bits per sub-vector quantizer Typical value: 8 (256 centroids per sub-quantizer)

nprobe: usize

Number of clusters to probe during search Typical values: 1, 4, 16, 64 More probes = better recall but slower search

metric: DistanceMetric

Distance metric for clustering and search

max_kmeans_iterations: usize

Max iterations for k-means clustering

kmeans_tolerance: f32

Convergence threshold for k-means

Implementations

impl IvfPqConfig

pub fn with_nclusters(self, nclusters: usize) -> Self

pub fn with_nsubvectors(self, nsubvectors: usize) -> Self

pub fn with_nbits(self, nbits: usize) -> Self

pub fn with_nprobe(self, nprobe: usize) -> Self

pub fn with_metric(self, metric: DistanceMetric) -> Self

Trait Implementations

impl Clone for IvfPqConfig

fn clone(&self) -> IvfPqConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IvfPqConfig

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

Formats the value using the given formatter.

impl Default for IvfPqConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for IvfPqConfig

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for IvfPqConfig

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

where __S: Serializer,

Serialize this value into the given Serde serializer.