#include <MetaIndexes.h>

Inheritance diagram for faiss::IndexSplitVectors:

Public Member Functions
	IndexSplitVectors (idx_t d, bool threaded=false)
	sum of dimensions seen so far

void	add_sub_index (Index *)

void	sync_with_sub_indexes ()

virtual void	add (idx_t n, const float *x) override

virtual void	search (idx_t n, const float x, idx_t k, float distances, idx_t *labels) const override

virtual void	train (idx_t n, const float *x) override

virtual void	reset () override
	removes all elements from the database.

virtual void	set_typename () override

Public Member Functions inherited from faiss::Index
	Index (idx_t d=0, MetricType metric=METRIC_INNER_PRODUCT)

virtual void	add_with_ids (idx_t n, const float x, const long xids)

virtual void	range_search (idx_t n, const float x, float radius, RangeSearchResult result) const

void	assign (idx_t n, const float x, idx_t labels, idx_t k=1)

virtual long	remove_ids (const IDSelector &sel)

virtual void	reconstruct (idx_t key, float *recons) const

virtual void	reconstruct_n (idx_t i0, idx_t ni, float *recons) const

void	compute_residual (const float x, float residual, idx_t key) const

void	display () const

virtual std::string	get_typename () const

Public Attributes
bool	own_fields

bool	threaded

std::vector< Index * >	sub_indexes

idx_t	sum_d

Public Attributes inherited from faiss::Index
std::string	index_typename

int	d
	vector dimension

idx_t	ntotal
	total nb of indexed vectors

bool	verbose
	verbosity level

bool	is_trained
	set if the Index does not require training, or if training is done already

MetricType	metric_type
	type of metric this index uses for search

Additional Inherited Members
Public Types inherited from faiss::Index
typedef long	idx_t
	all indices are this type

Detailed Description

splits input vectors in segments and assigns each segment to a sub-index used to distribute a MultiIndexQuantizer

Definition at line 109 of file MetaIndexes.h.

Member Function Documentation

void faiss::IndexSplitVectors::add	(	idx_t	n,
		const float *	x
	)

overridevirtual

Add n vectors of dimension d to the index.

Vectors are implicitly assigned labels ntotal .. ntotal + n - 1 This function slices the input vectors in chuncks smaller than blocksize_add and calls add_core.

Parameters

x	input matrix, size n * d

Implements faiss::Index.

Definition at line 499 of file MetaIndexes.cpp.

void faiss::IndexSplitVectors::search	(	idx_t	n,
		const float *	x,
		idx_t	k,
		float *	distances,
		idx_t *	labels
	)		const

overridevirtual

query n vectors of dimension d to the index.

return at most k vectors. If there are not enough results for a query, the result array is padded with -1s.

Parameters

x	input vectors to search, size n * d
labels	output labels of the NNs, size n*k
distances	output pairwise distances, size n*k

Implements faiss::Index.

Definition at line 544 of file MetaIndexes.cpp.

void faiss::IndexSplitVectors::train	(	idx_t	n,
		const float *	x
	)

overridevirtual

Perform training on a representative set of vectors

Parameters

n	nb of training vectors
x	training vecors, size n * d

Reimplemented from faiss::Index.

Definition at line 599 of file MetaIndexes.cpp.

The documentation for this struct was generated from the following files:

/data/users/matthijs/github_faiss/faiss/MetaIndexes.h
/data/users/matthijs/github_faiss/faiss/MetaIndexes.cpp

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation