pub struct DistanceTable {
pub distances: Vec<f32>,
pub num_subspaces: usize,
pub num_centroids: usize,
}Expand description
Precomputed distance table for fast asymmetric distance computation
Fields§
§distances: Vec<f32>M × K table of squared distances
num_subspaces: usizeNumber of subspaces
num_centroids: usizeNumber of centroids per subspace
Implementations§
Source§impl DistanceTable
impl DistanceTable
Sourcepub fn build(
codebook: &PQCodebook,
query: &[f32],
centroid: Option<&[f32]>,
) -> Self
pub fn build( codebook: &PQCodebook, query: &[f32], centroid: Option<&[f32]>, ) -> Self
Build distance table for a query vector
Sourcepub fn compute_distance(&self, codes: &[u8]) -> f32
pub fn compute_distance(&self, codes: &[u8]) -> f32
Compute approximate distance using PQ codes
Trait Implementations§
Source§impl Clone for DistanceTable
impl Clone for DistanceTable
Source§fn clone(&self) -> DistanceTable
fn clone(&self) -> DistanceTable
Returns a duplicate of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreAuto Trait Implementations§
impl Freeze for DistanceTable
impl RefUnwindSafe for DistanceTable
impl Send for DistanceTable
impl Sync for DistanceTable
impl Unpin for DistanceTable
impl UnwindSafe for DistanceTable
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§impl<T> Pointable for T
impl<T> Pointable for T
Source§impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
Source§fn to_subset(&self) -> Option<SS>
fn to_subset(&self) -> Option<SS>
The inverse inclusion map: attempts to construct
self from the equivalent element of its
superset. Read moreSource§fn is_in_subset(&self) -> bool
fn is_in_subset(&self) -> bool
Checks if
self is actually part of its subset T (and can be converted to it).Source§fn to_subset_unchecked(&self) -> SS
fn to_subset_unchecked(&self) -> SS
Use with care! Same as
self.to_subset but without any property checks. Always succeeds.Source§fn from_subset(element: &SS) -> SP
fn from_subset(element: &SS) -> SP
The inclusion map: converts
self to the equivalent element of its superset.