Searcher on an Annoy index. More...

#include <knncolle_annoy.hpp>

Inheritance diagram for knncolle_annoy::AnnoySearcher< Index_, Data_, Distance_, AnnoyDistance_, AnnoyIndex_, AnnoyData_, AnnoyRng_, AnnoyThreadPolicy_ >:

Public Member Functions
void	search (Index_ i, Index_ k, std::vector< Index_ > output_indices, std::vector< Distance_ > output_distances)

void	search (const Data_ query, Index_ k, std::vector< Index_ > output_indices, std::vector< Distance_ > *output_distances)

Public Member Functions inherited from knncolle::Searcher< Index_, Data_, Distance_ >
virtual bool	can_search_all () const

virtual Index_	search_all (Index_ i, Distance_ distance, std::vector< Index_ > output_indices, std::vector< Distance_ > output_distances)

virtual Index_	search_all (const Data_ query, Distance_ distance, std::vector< Index_ > output_indices, std::vector< Distance_ > *output_distances)

Detailed Description

template<typename Index_, typename Data_, typename Distance_, class AnnoyDistance_, typename AnnoyIndex_ = Index_, typename AnnoyData_ = float, class AnnoyRng_ = Annoy::Kiss64Random, class AnnoyThreadPolicy_ = Annoy::AnnoyIndexSingleThreadedBuildPolicy>
class knncolle_annoy::AnnoySearcher< Index_, Data_, Distance_, AnnoyDistance_, AnnoyIndex_, AnnoyData_, AnnoyRng_, AnnoyThreadPolicy_ >

Searcher on an Annoy index.

Instances of this class are usually constructed using AnnoyPrebuilt::initialize().

Template Parameters

Index_	Integer type for the observation indices.
Data_	Numeric type for the input and query data.
Distance_	Floating-point type for the distances.
AnnoyDistance_	An Annoy-compatible class to compute the distance between vectors, e.g., `Annoy::Euclidean`, `Annoy::Manhattan`. Note that this is not the same as `knncolle::DistanceMetric`.
AnnoyIndex_	Integer type for the observation indices in the Annoy index.
AnnoyData_	Floating-point type for data in the Annoy index. This defaults to a `float` instead of a `double` to sacrifice some accuracy for performance.
AnnoyRng_	An Annoy class for random number generation.
AnnoyThreadPolicy_	An Annoy class for the threadedness of Annoy index building.

Member Function Documentation

◆ search() [1/2]

template<typename Index_ , typename Data_ , typename Distance_ , class AnnoyDistance_ , typename AnnoyIndex_ = Index_, typename AnnoyData_ = float, class AnnoyRng_ = Annoy::Kiss64Random, class AnnoyThreadPolicy_ = Annoy::AnnoyIndexSingleThreadedBuildPolicy>

void knncolle_annoy::AnnoySearcher< Index_, Data_, Distance_, AnnoyDistance_, AnnoyIndex_, AnnoyData_, AnnoyRng_, AnnoyThreadPolicy_ >::search	(	const Data_ *	query,
		Index_	k,
		std::vector< Index_ > *	output_indices,
		std::vector< Distance_ > *	output_distances )

inlinevirtual

Implements knncolle::Searcher< Index_, Data_, Distance_ >.

◆ search() [2/2]