mirror of
https://github.com/facebookresearch/faiss.git
synced 2025-06-03 21:54:02 +08:00
c0052c1533
Summary: Pull Request resolved: https://github.com/facebookresearch/faiss/pull/2132 This diff adds the class IndexFlatCodes that becomes the parent of all "flat" encodings. IndexPQ IndexFlat IndexAdditiveQuantizer IndexScalarQuantizer IndexLSH Index2Layer The other changes are: - for IndexFlat, there is no vector<float> with the data anymore. It is replaced with a `get_xb()` function. This broke quite a few external codes, that this diff also attempts to fix. - I/O functions needed to be adapted. This is done without changing the I/O format for any index. - added a small contrib function to get the data from the IndexFlat - the functionality has been made uniform, for example remove_ids and add are now in the parent class. Eventually, we may support generic storage for flat indexes, similar to `InvertedLists`, eg to memmap the data, but this will again require a big change. Reviewed By: wickedfoo Differential Revision: D32646769 fbshipit-source-id: 04a1659173fd51b130ae45d345176b72183cae40
46 lines
1.0 KiB
C
46 lines
1.0 KiB
C
/**
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*/
|
|
|
|
// Copyright 2004-present Facebook. All Rights Reserved.
|
|
// -*- c++ -*-
|
|
|
|
#ifndef INDEX_LSH_C_H
|
|
#define INDEX_LSH_C_H
|
|
|
|
#include "Clustering_c.h"
|
|
#include "Index_c.h"
|
|
#include "faiss_c.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/** The sign of each vector component is put in a binary signature */
|
|
FAISS_DECLARE_CLASS_INHERITED(IndexLSH, Index)
|
|
FAISS_DECLARE_DESTRUCTOR(IndexLSH)
|
|
FAISS_DECLARE_INDEX_DOWNCAST(IndexLSH)
|
|
|
|
FAISS_DECLARE_GETTER(IndexLSH, int, nbits)
|
|
FAISS_DECLARE_GETTER(IndexLSH, int, code_size)
|
|
FAISS_DECLARE_GETTER(IndexLSH, int, rotate_data)
|
|
FAISS_DECLARE_GETTER(IndexLSH, int, train_thresholds)
|
|
|
|
int faiss_IndexLSH_new(FaissIndexLSH** p_index, idx_t d, int nbits);
|
|
|
|
int faiss_IndexLSH_new_with_options(
|
|
FaissIndexLSH** p_index,
|
|
idx_t d,
|
|
int nbits,
|
|
int rotate_data,
|
|
int train_thresholds);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|