2017-02-23 06:26:44 +08:00
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2017-02-23 06:26:44 +08:00
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2017-03-21 01:33:21 +08:00
< div class = "title" > /data/users/matthijs/github_faiss/faiss/IndexIVFPQ.h< / div > < / div >
2017-02-23 06:26:44 +08:00
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< div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > /**< / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "comment" > * Copyright (c) 2015-present, Facebook, Inc.< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > * All rights reserved.< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < span class = "comment" > *< / span > < / div >
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< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "comment" > * This source code is licensed under the BSD+Patents license found in the< / span > < / div >
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< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < span class = "comment" > * LICENSE file in the root directory of this source tree.< / span > < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "comment" > */< / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "comment" > // Copyright 2004-present Facebook. All Rights Reserved.< / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "comment" > // -*- c++ -*-< / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "preprocessor" > #ifndef FAISS_INDEX_IVFPQ_H< / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define FAISS_INDEX_IVFPQ_H< / span > < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "preprocessor" > #include < vector> < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "preprocessor" > #include " IndexIVF.h" < / span > < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "preprocessor" > #include " IndexPQ.h" < / span > < / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < / div >
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< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < / div >
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< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "keyword" > namespace < / span > faiss {< / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < / div >
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< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < / div >
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< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < span class = "comment" > /** Inverted file with Product Quantizer encoding. Each residual< / span > < / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "comment" > * vector is encoded as a product quantizer code.< / span > < / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < span class = "comment" > */< / span > < / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html" > 29< / a > < / span >   < span class = "keyword" > struct < / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html" > IndexIVFPQ< / a > : < a class = "code" href = "structfaiss_1_1IndexIVF.html" > IndexIVF< / a > {< / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > 30< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > by_residual< / a > ; < span class = "comment" > ///< Encode residual or plain vector?< / span > < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583" > 31< / a > < / span >   < span class = "comment" > < / span > < span class = "keywordtype" > int< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583" > use_precomputed_table< / a > ; < span class = "comment" > ///< if by_residual, build precompute tables< / span > < / div >
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< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > 32< / a > < / span >   < span class = "comment" > < / span > < a class = "code" href = "structfaiss_1_1ProductQuantizer.html" > ProductQuantizer< / a > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > pq< / a > ; < span class = "comment" > ///< produces the codes< / span > < / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#a9d5373633df7a9bec4de69400b9adeed" > 34< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a9d5373633df7a9bec4de69400b9adeed" > do_polysemous_training< / a > ; < span class = "comment" > ///< reorder PQ centroids after training?< / span > < / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#a2b14cbb5acb3fc28a4df8fde3f5567cd" > 35< / a > < / span >   < span class = "comment" > < / span > < a class = "code" href = "structfaiss_1_1PolysemousTraining.html" > PolysemousTraining< / a > *< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a2b14cbb5acb3fc28a4df8fde3f5567cd" > polysemous_training< / a > ; < span class = "comment" > ///< if NULL, use default< / span > < / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < span class = "comment" > // search-time parameters< / span > < / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#a7430fc4fa030c96497abced3b68358d4" > 38< / a > < / span >   < span class = "keywordtype" > size_t< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a7430fc4fa030c96497abced3b68358d4" > scan_table_threshold< / a > ; < span class = "comment" > ///< use table computation or on-the-fly?< / span > < / div >
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< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#a3093a0a3e128eafce6e0583b75e9662e" > 39< / a > < / span >   < span class = "comment" > < / span > < span class = "keywordtype" > int< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a3093a0a3e128eafce6e0583b75e9662e" > polysemous_ht< / a > ; < span class = "comment" > ///< Hamming thresh for polysemous filtering< / span > < / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < span class = "comment" > < / span > < / div >
2017-09-08 19:39:41 +08:00
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < span class = "comment" > < / span > < / div >
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< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "comment" > /// if use_precompute_table< / span > < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < span class = "comment" > /// size nlist * pq.M * pq.ksub< / span > < / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQ.html#a9b310195d610c3e326471b3758206b59" > 44< / a > < / span >   < span class = "comment" > < / span > std::vector < float> < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a9b310195d610c3e326471b3758206b59" > precomputed_table< / a > ;< / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html" > IndexIVFPQ< / a > (< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < a class = "code" href = "structfaiss_1_1Index.html" > Index< / a > * < a class = "code" href = "structfaiss_1_1Level1Quantizer.html#a3cf99e2ee92b8558a066f821efab95d5" > quantizer< / a > , < span class = "keywordtype" > size_t< / span > < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > , < span class = "keywordtype" > size_t< / span > < a class = "code" href = "structfaiss_1_1Level1Quantizer.html#a1c4fc9d874d9492ee0ea27a5be388fa7" > nlist< / a > ,< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "keywordtype" > size_t< / span > M, < span class = "keywordtype" > size_t< / span > nbits_per_idx);< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a981c2748bfbd9b018494f119279a0342" > add_with_ids< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x, < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > * xids = < span class = "keyword" > nullptr< / span > )< / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "comment" > /// same as add_core, also:< / span > < / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < span class = "comment" > /// - output 2nd level residuals if residuals_2 != NULL< / span > < / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < span class = "comment" > /// - use precomputed list numbers if precomputed_idx != NULL< / span > < / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#ac0cb8421b9885d691696d2ff4f76894b" > add_core_o< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x,< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > *xids, < span class = "keywordtype" > float< / span > *residuals_2,< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > *precomputed_idx = < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < span class = "comment" > /// trains the product quantizer< / span > < / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#af6565a5d8bab7be3df19c50d235bd662" > train_residual< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < span class = "comment" > /// same as train_residual, also output 2nd level residuals< / span > < / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a4e06f04853dcb424dc393de5f641e917" > train_residual_o< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x, < span class = "keywordtype" > float< / span > *residuals_2);< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a921c6640d3a16bb3608883d8e8948810" > reconstruct_from_offset< / a > (< span class = "keywordtype" > long< / span > list_no, < span class = "keywordtype" > long< / span > offset,< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < span class = "keywordtype" > float< / span > * recons) < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < span class = "comment" > /** Find exact duplicates in the dataset.< / span > < / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < span class = "comment" > * the duplicates are returned in pre-allocated arrays (see the< / span > < / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < span class = "comment" > * max sizes).< / span > < / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < span class = "comment" > * @params lims limits between groups of duplicates< / span > < / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < span class = "comment" > * (max size ntotal / 2 + 1)< / span > < / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < span class = "comment" > * @params ids ids[lims[i]] : ids[lims[i+1]-1] is a group of< / span > < / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < span class = "comment" > * duplicates (max size ntotal)< / span > < / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < span class = "comment" > * @return n number of groups found< / span > < / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < span class = "comment" > */< / span > < / div >
2018-02-23 23:44:31 +08:00
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < span class = "keywordtype" > size_t< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#aee355b57acde203a3caed46a93e16a3c" > find_duplicates< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > *ids, < span class = "keywordtype" > size_t< / span > *lims) < span class = "keyword" > const< / span > ;< / div >
2018-01-09 22:44:43 +08:00
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < span class = "comment" > // map a vector to a binary code knowning the index< / span > < / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < span class = "keywordtype" > void< / span > encode (< span class = "keywordtype" > long< / span > key, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x, uint8_t * code) < span class = "keyword" > const< / span > ;< / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < span class = "comment" > /** Encode multiple vectors< / span > < / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   < span class = "comment" > * @param n nb vectors to encode< / span > < / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   < span class = "comment" > * @param keys posting list ids for those vectors (size n)< / span > < / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   < span class = "comment" > * @param x vectors (size n * d)< / span > < / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < span class = "comment" > * @param codes output codes (size n * code_size)< / span > < / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < span class = "comment" > * @param compute_keys if false, assume keys are precomputed,< / span > < / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < span class = "comment" > * otherwise compute them< / span > < / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < span class = "comment" > */< / span > < / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a1ae6cdd996bbd398fa4e87646c8f3ba6" > encode_multiple< / a > (< span class = "keywordtype" > size_t< / span > n, < span class = "keywordtype" > long< / span > *keys,< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x, uint8_t * codes,< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   < span class = "keywordtype" > bool< / span > compute_keys = < span class = "keyword" > false< / span > ) < span class = "keyword" > const< / span > ;< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < span class = "comment" > /// inverse of encode_multiple< / span > < / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#ae1fb0cc3051dec8e322a78c443f8fc9a" > decode_multiple< / a > (< span class = "keywordtype" > size_t< / span > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > *keys,< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < span class = "keyword" > const< / span > uint8_t * xcodes, < span class = "keywordtype" > float< / span > * x) < span class = "keyword" > const< / span > ;< / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#a150a37cf3e8a7e37cb8dab1d5678bc02" > search_preassigned< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x, < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > k,< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > *< a class = "code" href = "structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c" > assign< / a > ,< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *centroid_dis,< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < span class = "keywordtype" > float< / span > *distances, < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > *labels,< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   < span class = "keywordtype" > bool< / span > store_pairs) < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < span class = "comment" > /// build precomputed table< / span > < / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html#ad99c215aeaf92e995cb97f4044c4d267" > precompute_table< / a > ();< / div >
2017-09-08 19:39:41 +08:00
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < / div >
2018-01-09 22:44:43 +08:00
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html" > IndexIVFPQ< / a > ();< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   < / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   };< / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   < / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < span class = "comment" > /// statistics are robust to internal threading, but not if< / span > < / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < span class = "comment" > /// IndexIVFPQ::search_preassigned is called by multiple threads< / span > < / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQStats.html" > 118< / a > < / span >   < span class = "comment" > < / span > < span class = "keyword" > struct < / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQStats.html" > IndexIVFPQStats< / a > {< / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < span class = "keywordtype" > size_t< / span > nq; < span class = "comment" > // nb of queries run< / span > < / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < span class = "keywordtype" > size_t< / span > nlist; < span class = "comment" > // nb of inverted lists scanned< / span > < / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < span class = "keywordtype" > size_t< / span > ncode; < span class = "comment" > // nb of codes visited< / span > < / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < span class = "keywordtype" > size_t< / span > nrefine; < span class = "comment" > // nb of refines (IVFPQR)< / span > < / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   < span class = "keywordtype" > size_t< / span > n_hamming_pass;< / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   < span class = "comment" > // nb of passed Hamming distance tests (for polysemous)< / span > < / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < span class = "comment" > // timings measured with the CPU RTC< / span > < / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   < span class = "comment" > // on all threads< / span > < / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   < span class = "keywordtype" > size_t< / span > assign_cycles;< / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   < span class = "keywordtype" > size_t< / span > search_cycles;< / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   < span class = "keywordtype" > size_t< / span > refine_cycles; < span class = "comment" > // only for IVFPQR< / span > < / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   < / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   < span class = "comment" > // single thread (double-counted with search_cycles)< / span > < / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   < span class = "keywordtype" > size_t< / span > init_query_cycles;< / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   < span class = "keywordtype" > size_t< / span > init_list_cycles;< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   < span class = "keywordtype" > size_t< / span > scan_cycles;< / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   < span class = "keywordtype" > size_t< / span > heap_cycles;< / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   < / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQStats.html" > IndexIVFPQStats< / a > () {reset (); }< / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   < span class = "keywordtype" > void< / span > reset ();< / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   };< / div >
2017-09-08 19:39:41 +08:00
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   < / div >
2018-01-09 22:44:43 +08:00
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   < span class = "comment" > // global var that collects them all< / span > < / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   < span class = "keyword" > extern< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQStats.html" > IndexIVFPQStats< / a > indexIVFPQ_stats;< / div >
2017-11-22 21:00:42 +08:00
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   < / div >
2018-01-09 22:44:43 +08:00
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   < / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   < span class = "comment" > /** Index with an additional level of PQ refinement */< / span > < / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQR.html" > 149< / a > < / span >   < span class = "keyword" > struct < / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html" > IndexIVFPQR< / a > : < a class = "code" href = "structfaiss_1_1IndexIVFPQ.html" > IndexIVFPQ< / a > {< / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > 150< / a > < / span >   < a class = "code" href = "structfaiss_1_1ProductQuantizer.html" > ProductQuantizer< / a > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > refine_pq< / a > ; < span class = "comment" > ///< 3rd level quantizer< / span > < / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQR.html#a588bd0b733c8db18eaeb7bc287afd16e" > 151< / a > < / span >   < span class = "comment" > < / span > std::vector < uint8_t> < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a588bd0b733c8db18eaeb7bc287afd16e" > refine_codes< / a > ; < span class = "comment" > ///< corresponding codes< / span > < / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   < span class = "comment" > < / span > < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   < span class = "comment" > /// factor between k requested in search and the k requested from the IVFPQ< / span > < / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexIVFPQR.html#a0b02a4151ceacc070352f8b15cc0ee0b" > 154< / a > < / span >   < span class = "comment" > < / span > < span class = "keywordtype" > float< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a0b02a4151ceacc070352f8b15cc0ee0b" > k_factor< / a > ;< / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   < / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html" > IndexIVFPQR< / a > (< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   < a class = "code" href = "structfaiss_1_1Index.html" > Index< / a > * < a class = "code" href = "structfaiss_1_1Level1Quantizer.html#a3cf99e2ee92b8558a066f821efab95d5" > quantizer< / a > , < span class = "keywordtype" > size_t< / span > < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > , < span class = "keywordtype" > size_t< / span > < a class = "code" href = "structfaiss_1_1Level1Quantizer.html#a1c4fc9d874d9492ee0ea27a5be388fa7" > nlist< / a > ,< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   < span class = "keywordtype" > size_t< / span > M, < span class = "keywordtype" > size_t< / span > nbits_per_idx,< / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   < span class = "keywordtype" > size_t< / span > M_refine, < span class = "keywordtype" > size_t< / span > nbits_per_idx_refine);< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   < / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#ae0e979a014a9defe2254e9543657b075" > reset< / a > () < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   < / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   < span class = "keywordtype" > long< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#acc5eeeeb8ac8d2581ef07947932d9f6c" > remove_ids< / a > (< span class = "keyword" > const< / span > < a class = "code" href = "structfaiss_1_1IDSelector.html" > IDSelector< / a > & sel) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   < span class = "comment" > /// trains the two product quantizers< / span > < / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a68ed7cae5bec89fcdcb6a1d2addbd5a8" > train_residual< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   < / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a4b6154a5194d574d037ba78c137a2fa5" > add_with_ids< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x, < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > * xids) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   < span class = "comment" > /// same as add_with_ids, but optionally use the precomputed list ids< / span > < / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a186b746f22b65ddf416b1e821b0866ec" > add_core< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x, < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > *xids,< / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > long< / span > *precomputed_idx = < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   < / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a83aa33ae77eb80f6564992e250abcf41" > reconstruct_from_offset< / a > (< span class = "keywordtype" > long< / span > list_no, < span class = "keywordtype" > long< / span > offset,< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   < span class = "keywordtype" > float< / span > * recons) < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   < / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a31a1fec2a88b410ea96ce5be7d527be9" > merge_from< / a > (< a class = "code" href = "structfaiss_1_1IndexIVF.html" > IndexIVF< / a > & other, < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > add_id) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   < / div >
2017-11-22 21:00:42 +08:00
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   < / div >
2018-01-09 22:44:43 +08:00
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html#a0397b7717f673383f1f03898334d5086" > search_preassigned< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x, < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > k,< / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > *< a class = "code" href = "structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c" > assign< / a > ,< / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *centroid_dis,< / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   < span class = "keywordtype" > float< / span > *distances, < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > *labels,< / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   < span class = "keywordtype" > bool< / span > store_pairs) < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   < / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   < a class = "code" href = "structfaiss_1_1IndexIVFPQR.html" > IndexIVFPQR< / a > ();< / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   };< / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   < / div >
2018-02-23 23:44:31 +08:00
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   < / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   < span class = "comment" > /** Same as an IndexIVFPQ without the inverted lists: codes are stored sequentially< / span > < / div >
< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   < span class = "comment" > * The class is mainly inteded to store encoded vectors that can be< / span > < / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > 194< / span >   < span class = "comment" > * accessed randomly, the search function is not implemented.< / span > < / div >
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   < span class = "comment" > */< / span > < / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1Index2Layer.html" > 196< / a > < / span >   < span class = "keyword" > struct < / span > < a class = "code" href = "structfaiss_1_1Index2Layer.html" > Index2Layer< / a > : < a class = "code" href = "structfaiss_1_1Index.html" > Index< / a > {< span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   < span class = "comment" > /// first level quantizer< / span > < / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1Index2Layer.html#a5f2d70740af90b8c7ac946d58ec947aa" > 198< / a > < / span >   < span class = "comment" > < / span > < a class = "code" href = "structfaiss_1_1Level1Quantizer.html" > Level1Quantizer< / a > < a class = "code" href = "structfaiss_1_1Index2Layer.html#a5f2d70740af90b8c7ac946d58ec947aa" > q1< / a > ;< / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   < span class = "comment" > /// second level quantizer is always a PQ< / span > < / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1Index2Layer.html#ab90d1de73cbc705a347cfc852ded6006" > 201< / a > < / span >   < span class = "comment" > < / span > < a class = "code" href = "structfaiss_1_1ProductQuantizer.html" > ProductQuantizer< / a > < a class = "code" href = "structfaiss_1_1Index2Layer.html#ab90d1de73cbc705a347cfc852ded6006" > pq< / a > ;< / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   < span class = "comment" > /// Codes. Size ntotal * code_size.< / span > < / div >
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1Index2Layer.html#a8e6bcfa690ac5ab1636b3d89b144f2d9" > 204< / a > < / span >   < span class = "comment" > < / span > std::vector< uint8_t> < a class = "code" href = "structfaiss_1_1Index2Layer.html#a8e6bcfa690ac5ab1636b3d89b144f2d9" > codes< / a > ;< / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   < span class = "comment" > /// size of the code for the first level (ceil(log8(q1.nlist)))< / span > < / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1Index2Layer.html#a735b2b6cc50e4186776a8213d2679837" > 207< / a > < / span >   < span class = "comment" > < / span > < span class = "keywordtype" > size_t< / span > < a class = "code" href = "structfaiss_1_1Index2Layer.html#a735b2b6cc50e4186776a8213d2679837" > code_size_1< / a > ;< / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   < span class = "comment" > /// size of the code for the second level< / span > < / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1Index2Layer.html#ad47e3c6493d54c2b83f1120b480d20f3" > 210< / a > < / span >   < span class = "comment" > < / span > < span class = "keywordtype" > size_t< / span > < a class = "code" href = "structfaiss_1_1Index2Layer.html#ad47e3c6493d54c2b83f1120b480d20f3" > code_size_2< / a > ;< / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   < span class = "comment" > /// code_size_1 + code_size_2< / span > < / div >
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1Index2Layer.html#a66403863c8ec987ed83b4d7ef4064fe9" > 213< / a > < / span >   < span class = "comment" > < / span > < span class = "keywordtype" > size_t< / span > < a class = "code" href = "structfaiss_1_1Index2Layer.html#a66403863c8ec987ed83b4d7ef4064fe9" > code_size< / a > ;< / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   < / div >
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   < a class = "code" href = "structfaiss_1_1Index2Layer.html" > Index2Layer< / a > (< a class = "code" href = "structfaiss_1_1Index.html" > Index< / a > * quantizer, < span class = "keywordtype" > size_t< / span > nlist,< / div >
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   < span class = "keywordtype" > int< / span > M, < a class = "code" href = "namespacefaiss.html#afd12191c638da74760ff397cf319752c" > MetricType< / a > metric = METRIC_L2);< / div >
< div class = "line" > < a name = "l00217" > < / a > < span class = "lineno" > 217< / span >   < / div >
< div class = "line" > < a name = "l00218" > < / a > < span class = "lineno" > 218< / span >   < a class = "code" href = "structfaiss_1_1Index2Layer.html" > Index2Layer< / a > ();< / div >
< div class = "line" > < a name = "l00219" > < / a > < span class = "lineno" > 219< / span >   ~< a class = "code" href = "structfaiss_1_1Index2Layer.html" > Index2Layer< / a > ();< / div >
< div class = "line" > < a name = "l00220" > < / a > < span class = "lineno" > 220< / span >   < / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1Index2Layer.html#a48cbf519590313f1c6a3dc89c8d0678c" > train< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   < / div >
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1Index2Layer.html#a0aa69e64a2b216a01f99366e8ca4dc7b" > add< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00224" > < / a > < span class = "lineno" > 224< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   < span class = "comment" > /// not implemented< / span > < / div >
< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1Index2Layer.html#a5961efc2e19d9a6e5224f477b6d1b226" > search< / a > (< / div >
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n,< / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x,< / div >
< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > k,< / div >
< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   < span class = "keywordtype" > float< / span > * distances,< / div >
< div class = "line" > < a name = "l00231" > < / a > < span class = "lineno" > 231< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > * labels) < span class = "keyword" > const override< / span > ;< / div >
2018-01-09 22:44:43 +08:00
< div class = "line" > < a name = "l00232" > < / a > < span class = "lineno" > 232< / span >   < / div >
2018-02-23 23:44:31 +08:00
< div class = "line" > < a name = "l00233" > < / a > < span class = "lineno" > 233< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1Index2Layer.html#a226daedaa05c0e0bb3a0afb78d5aa120" > reconstruct_n< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > i0, < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > ni, < span class = "keywordtype" > float< / span > * recons) < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   < / div >
< div class = "line" > < a name = "l00235" > < / a > < span class = "lineno" > 235< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1Index2Layer.html#af2e505c14e62234eb251fcb37ef012d2" > reconstruct< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > key, < span class = "keywordtype" > float< / span > * recons) < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a name = "l00236" > < / a > < span class = "lineno" > 236< / span >   < / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1Index2Layer.html#a12e446dbca14688c37e038c98972ef4e" > reset< / a > () < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > 238< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00239" > < / a > < span class = "lineno" > 239< / span >   < span class = "comment" > /// transfer the flat codes to an IVFPQ index< / span > < / div >
< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > 240< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1Index2Layer.html#a8692273ff51ab7f34748c3d5b3295216" > transfer_to_IVFPQ< / a > (< a class = "code" href = "structfaiss_1_1IndexIVFPQ.html" > IndexIVFPQ< / a > & other) < span class = "keyword" > const< / span > ;< / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   < / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   };< / div >
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   < / div >
< div class = "line" > < a name = "l00244" > < / a > < span class = "lineno" > 244< / span >   < / div >
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / span >   < / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   } < span class = "comment" > // namespace faiss< / span > < / div >
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   < / div >
< div class = "line" > < a name = "l00248" > < / a > < span class = "lineno" > 248< / span >   < / div >
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   < / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   < / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   < / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > 252< / span >   < span class = "preprocessor" > #endif< / span > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVF_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVF.html" > faiss::IndexIVF< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8h_source.html#l00166" > IndexIVF.h:166< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_ad99c215aeaf92e995cb97f4044c4d267" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#ad99c215aeaf92e995cb97f4044c4d267" > faiss::IndexIVFPQ::precompute_table< / a > < / div > < div class = "ttdeci" > void precompute_table()< / div > < div class = "ttdoc" > build precomputed table < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00355" > IndexIVFPQ.cpp:355< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a31a1fec2a88b410ea96ce5be7d527be9" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a31a1fec2a88b410ea96ce5be7d527be9" > faiss::IndexIVFPQR::merge_from< / a > < / div > < div class = "ttdeci" > void merge_from(IndexIVF & other, idx_t add_id) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01259" > IndexIVFPQ.cpp:1259< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index2Layer_html_a8692273ff51ab7f34748c3d5b3295216" > < div class = "ttname" > < a href = "structfaiss_1_1Index2Layer.html#a8692273ff51ab7f34748c3d5b3295216" > faiss::Index2Layer::transfer_to_IVFPQ< / a > < / div > < div class = "ttdeci" > void transfer_to_IVFPQ(IndexIVFPQ & other) const < / div > < div class = "ttdoc" > transfer the flat codes to an IVFPQ index < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01425" > IndexIVFPQ.cpp:1425< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index2Layer_html_ad47e3c6493d54c2b83f1120b480d20f3" > < div class = "ttname" > < a href = "structfaiss_1_1Index2Layer.html#ad47e3c6493d54c2b83f1120b480d20f3" > faiss::Index2Layer::code_size_2< / a > < / div > < div class = "ttdeci" > size_t code_size_2< / div > < div class = "ttdoc" > size of the code for the second level < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00210" > IndexIVFPQ.h:210< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a83aa33ae77eb80f6564992e250abcf41" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a83aa33ae77eb80f6564992e250abcf41" > faiss::IndexIVFPQR::reconstruct_from_offset< / a > < / div > < div class = "ttdeci" > void reconstruct_from_offset(long list_no, long offset, float *recons) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01244" > IndexIVFPQ.cpp:1244< / a > < / div > < / div >
2018-01-09 22:44:43 +08:00
< div class = "ttc" id = "structfaiss_1_1Level1Quantizer_html" > < div class = "ttname" > < a href = "structfaiss_1_1Level1Quantizer.html" > faiss::Level1Quantizer< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8h_source.html#l00032" > IndexIVF.h:32< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a0397b7717f673383f1f03898334d5086" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a0397b7717f673383f1f03898334d5086" > faiss::IndexIVFPQR::search_preassigned< / a > < / div > < div class = "ttdeci" > void search_preassigned(idx_t n, const float *x, idx_t k, const idx_t *assign, const float *centroid_dis, float *distances, idx_t *labels, bool store_pairs) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01159" > IndexIVFPQ.cpp:1159< / a > < / div > < / div >
2018-01-09 22:44:43 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html" > faiss::IndexIVFPQR< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00149" > IndexIVFPQ.h:149< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a4a80540e7cdfb3e43712ffb93e083a7c" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a4a80540e7cdfb3e43712ffb93e083a7c" > faiss::IndexIVFPQR::refine_pq< / a > < / div > < div class = "ttdeci" > ProductQuantizer refine_pq< / div > < div class = "ttdoc" > 3rd level quantizer < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00150" > IndexIVFPQ.h:150< / a > < / div > < / div >
2017-09-08 19:39:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a2b14cbb5acb3fc28a4df8fde3f5567cd" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a2b14cbb5acb3fc28a4df8fde3f5567cd" > faiss::IndexIVFPQ::polysemous_training< / a > < / div > < div class = "ttdeci" > PolysemousTraining * polysemous_training< / div > < div class = "ttdoc" > if NULL, use default < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00035" > IndexIVFPQ.h:35< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1Index2Layer_html_a226daedaa05c0e0bb3a0afb78d5aa120" > < div class = "ttname" > < a href = "structfaiss_1_1Index2Layer.html#a226daedaa05c0e0bb3a0afb78d5aa120" > faiss::Index2Layer::reconstruct_n< / a > < / div > < div class = "ttdeci" > void reconstruct_n(idx_t i0, idx_t ni, float *recons) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01405" > IndexIVFPQ.cpp:1405< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index2Layer_html_a66403863c8ec987ed83b4d7ef4064fe9" > < div class = "ttname" > < a href = "structfaiss_1_1Index2Layer.html#a66403863c8ec987ed83b4d7ef4064fe9" > faiss::Index2Layer::code_size< / a > < / div > < div class = "ttdeci" > size_t code_size< / div > < div class = "ttdoc" > code_size_1 + code_size_2 < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00213" > IndexIVFPQ.h:213< / a > < / div > < / div >
2018-01-09 22:44:43 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQStats_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQStats.html" > faiss::IndexIVFPQStats< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00118" > IndexIVFPQ.h:118< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1Index2Layer_html_a12e446dbca14688c37e038c98972ef4e" > < div class = "ttname" > < a href = "structfaiss_1_1Index2Layer.html#a12e446dbca14688c37e038c98972ef4e" > faiss::Index2Layer::reset< / a > < / div > < div class = "ttdeci" > void reset() override< / div > < div class = "ttdoc" > removes all elements from the database. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01452" > IndexIVFPQ.cpp:1452< / a > < / div > < / div >
2018-01-09 22:44:43 +08:00
< div class = "ttc" id = "structfaiss_1_1Index_html_a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a8bc5d8d1cd0dd7b34b3c98a9f76b4a9c" > faiss::Index::assign< / a > < / div > < div class = "ttdeci" > void assign(idx_t n, const float *x, idx_t *labels, idx_t k=1)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8cpp_source.html#l00034" > Index.cpp:34< / a > < / div > < / div >
2017-07-18 17:43:35 +08:00
< div class = "ttc" id = "structfaiss_1_1IDSelector_html" > < div class = "ttname" > < a href = "structfaiss_1_1IDSelector.html" > faiss::IDSelector< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "AuxIndexStructures_8h_source.html#l00052" > AuxIndexStructures.h:52< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_ae1fb0cc3051dec8e322a78c443f8fc9a" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#ae1fb0cc3051dec8e322a78c443f8fc9a" > faiss::IndexIVFPQ::decode_multiple< / a > < / div > < div class = "ttdeci" > void decode_multiple(size_t n, const long *keys, const uint8_t *xcodes, float *x) const < / div > < div class = "ttdoc" > inverse of encode_multiple < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00174" > IndexIVFPQ.cpp:174< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a4e06f04853dcb424dc393de5f641e917" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a4e06f04853dcb424dc393de5f641e917" > faiss::IndexIVFPQ::train_residual_o< / a > < / div > < div class = "ttdeci" > void train_residual_o(idx_t n, const float *x, float *residuals_2)< / div > < div class = "ttdoc" > same as train_residual, also output 2nd level residuals < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00072" > IndexIVFPQ.cpp:72< / a > < / div > < / div >
2017-09-08 19:39:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a9d5373633df7a9bec4de69400b9adeed" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a9d5373633df7a9bec4de69400b9adeed" > faiss::IndexIVFPQ::do_polysemous_training< / a > < / div > < div class = "ttdeci" > bool do_polysemous_training< / div > < div class = "ttdoc" > reorder PQ centroids after training? < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00034" > IndexIVFPQ.h:34< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a7430fc4fa030c96497abced3b68358d4" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a7430fc4fa030c96497abced3b68358d4" > faiss::IndexIVFPQ::scan_table_threshold< / a > < / div > < div class = "ttdeci" > size_t scan_table_threshold< / div > < div class = "ttdoc" > use table computation or on-the-fly? < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00038" > IndexIVFPQ.h:38< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a68ed7cae5bec89fcdcb6a1d2addbd5a8" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a68ed7cae5bec89fcdcb6a1d2addbd5a8" > faiss::IndexIVFPQR::train_residual< / a > < / div > < div class = "ttdeci" > void train_residual(idx_t n, const float *x) override< / div > < div class = "ttdoc" > trains the two product quantizers < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01116" > IndexIVFPQ.cpp:1116< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a186b746f22b65ddf416b1e821b0866ec" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a186b746f22b65ddf416b1e821b0866ec" > faiss::IndexIVFPQR::add_core< / a > < / div > < div class = "ttdeci" > void add_core(idx_t n, const float *x, const long *xids, const long *precomputed_idx=nullptr)< / div > < div class = "ttdoc" > same as add_with_ids, but optionally use the precomputed list ids < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01140" > IndexIVFPQ.cpp:1140< / a > < / div > < / div >
2018-01-09 22:44:43 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a9b310195d610c3e326471b3758206b59" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a9b310195d610c3e326471b3758206b59" > faiss::IndexIVFPQ::precomputed_table< / a > < / div > < div class = "ttdeci" > std::vector< float > precomputed_table< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00044" > IndexIVFPQ.h:44< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1Index2Layer_html_a5f2d70740af90b8c7ac946d58ec947aa" > < div class = "ttname" > < a href = "structfaiss_1_1Index2Layer.html#a5f2d70740af90b8c7ac946d58ec947aa" > faiss::Index2Layer::q1< / a > < / div > < div class = "ttdeci" > Level1Quantizer q1< / div > < div class = "ttdoc" > first level quantizer < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00198" > IndexIVFPQ.h:198< / a > < / div > < / div >
2018-01-09 22:44:43 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a3093a0a3e128eafce6e0583b75e9662e" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a3093a0a3e128eafce6e0583b75e9662e" > faiss::IndexIVFPQ::polysemous_ht< / a > < / div > < div class = "ttdeci" > int polysemous_ht< / div > < div class = "ttdoc" > Hamming thresh for polysemous filtering. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00039" > IndexIVFPQ.h:39< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_ae0e979a014a9defe2254e9543657b075" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#ae0e979a014a9defe2254e9543657b075" > faiss::IndexIVFPQR::reset< / a > < / div > < div class = "ttdeci" > void reset() override< / div > < div class = "ttdoc" > removes all elements from the database. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01107" > IndexIVFPQ.cpp:1107< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index2Layer_html_a8e6bcfa690ac5ab1636b3d89b144f2d9" > < div class = "ttname" > < a href = "structfaiss_1_1Index2Layer.html#a8e6bcfa690ac5ab1636b3d89b144f2d9" > faiss::Index2Layer::codes< / a > < / div > < div class = "ttdeci" > std::vector< uint8_t > codes< / div > < div class = "ttdoc" > Codes. Size ntotal * code_size. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00204" > IndexIVFPQ.h:204< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a981c2748bfbd9b018494f119279a0342" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a981c2748bfbd9b018494f119279a0342" > faiss::IndexIVFPQ::add_with_ids< / a > < / div > < div class = "ttdeci" > void add_with_ids(idx_t n, const float *x, const long *xids=nullptr) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00197" > IndexIVFPQ.cpp:197< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index2Layer_html" > < div class = "ttname" > < a href = "structfaiss_1_1Index2Layer.html" > faiss::Index2Layer< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00196" > IndexIVFPQ.h:196< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1Index_html_a2a002388d2c081c2dbab8508dcefe73d" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > faiss::Index::d< / a > < / div > < div class = "ttdeci" > int d< / div > < div class = "ttdoc" > vector dimension < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00064" > Index.h:64< / a > < / div > < / div >
2018-01-09 22:44:43 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a588bd0b733c8db18eaeb7bc287afd16e" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a588bd0b733c8db18eaeb7bc287afd16e" > faiss::IndexIVFPQR::refine_codes< / a > < / div > < div class = "ttdeci" > std::vector< uint8_t > refine_codes< / div > < div class = "ttdoc" > corresponding codes < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00151" > IndexIVFPQ.h:151< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_af6565a5d8bab7be3df19c50d235bd662" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#af6565a5d8bab7be3df19c50d235bd662" > faiss::IndexIVFPQ::train_residual< / a > < / div > < div class = "ttdeci" > void train_residual(idx_t n, const float *x) override< / div > < div class = "ttdoc" > trains the product quantizer < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00066" > IndexIVFPQ.cpp:66< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a921c6640d3a16bb3608883d8e8948810" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a921c6640d3a16bb3608883d8e8948810" > faiss::IndexIVFPQ::reconstruct_from_offset< / a > < / div > < div class = "ttdeci" > void reconstruct_from_offset(long list_no, long offset, float *recons) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00302" > IndexIVFPQ.cpp:302< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html" > faiss::IndexIVFPQ< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00029" > IndexIVFPQ.h:29< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a1ae6cdd996bbd398fa4e87646c8f3ba6" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a1ae6cdd996bbd398fa4e87646c8f3ba6" > faiss::IndexIVFPQ::encode_multiple< / a > < / div > < div class = "ttdeci" > void encode_multiple(size_t n, long *keys, const float *x, uint8_t *codes, bool compute_keys=false) const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00155" > IndexIVFPQ.cpp:155< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1Index_html_a040c6aed1f224f3ea7bf58eebc0c31a4" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > faiss::Index::idx_t< / a > < / div > < div class = "ttdeci" > long idx_t< / div > < div class = "ttdoc" > all indices are this type < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00062" > Index.h:62< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1Index2Layer_html_a48cbf519590313f1c6a3dc89c8d0678c" > < div class = "ttname" > < a href = "structfaiss_1_1Index2Layer.html#a48cbf519590313f1c6a3dc89c8d0678c" > faiss::Index2Layer::train< / a > < / div > < div class = "ttdeci" > void train(idx_t n, const float *x) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01308" > IndexIVFPQ.cpp:1308< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1PolysemousTraining_html" > < div class = "ttname" > < a href = "structfaiss_1_1PolysemousTraining.html" > faiss::PolysemousTraining< / a > < / div > < div class = "ttdoc" > optimizes the order of indices in a ProductQuantizer < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "PolysemousTraining_8h_source.html#l00125" > PolysemousTraining.h:125< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1Index2Layer_html_a0aa69e64a2b216a01f99366e8ca4dc7b" > < div class = "ttname" > < a href = "structfaiss_1_1Index2Layer.html#a0aa69e64a2b216a01f99366e8ca4dc7b" > faiss::Index2Layer::add< / a > < / div > < div class = "ttdeci" > void add(idx_t n, const float *x) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01346" > IndexIVFPQ.cpp:1346< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index2Layer_html_a5961efc2e19d9a6e5224f477b6d1b226" > < div class = "ttname" > < a href = "structfaiss_1_1Index2Layer.html#a5961efc2e19d9a6e5224f477b6d1b226" > faiss::Index2Layer::search< / a > < / div > < div class = "ttdeci" > void search(idx_t n, const float *x, idx_t k, float *distances, idx_t *labels) const override< / div > < div class = "ttdoc" > not implemented < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01394" > IndexIVFPQ.cpp:1394< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_afd13b471df293ae5a6e895704c69a4c3" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#afd13b471df293ae5a6e895704c69a4c3" > faiss::IndexIVFPQ::by_residual< / a > < / div > < div class = "ttdeci" > bool by_residual< / div > < div class = "ttdoc" > Encode residual or plain vector? < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00030" > IndexIVFPQ.h:30< / a > < / div > < / div >
2017-09-08 19:39:41 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a007303be116c8da65b6d058e3fc77d16" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16" > faiss::IndexIVFPQ::pq< / a > < / div > < div class = "ttdeci" > ProductQuantizer pq< / div > < div class = "ttdoc" > produces the codes < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00032" > IndexIVFPQ.h:32< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1Index2Layer_html_a735b2b6cc50e4186776a8213d2679837" > < div class = "ttname" > < a href = "structfaiss_1_1Index2Layer.html#a735b2b6cc50e4186776a8213d2679837" > faiss::Index2Layer::code_size_1< / a > < / div > < div class = "ttdeci" > size_t code_size_1< / div > < div class = "ttdoc" > size of the code for the first level (ceil(log8(q1.nlist))) < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00207" > IndexIVFPQ.h:207< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1Index_html" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html" > faiss::Index< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00060" > Index.h:60< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_ac0cb8421b9885d691696d2ff4f76894b" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#ac0cb8421b9885d691696d2ff4f76894b" > faiss::IndexIVFPQ::add_core_o< / a > < / div > < div class = "ttdeci" > void add_core_o(idx_t n, const float *x, const long *xids, float *residuals_2, const long *precomputed_idx=nullptr)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00203" > IndexIVFPQ.cpp:203< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_acc5eeeeb8ac8d2581ef07947932d9f6c" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#acc5eeeeb8ac8d2581ef07947932d9f6c" > faiss::IndexIVFPQR::remove_ids< / a > < / div > < div class = "ttdeci" > long remove_ids(const IDSelector & sel) override< / div > < div class = "ttdoc" > Dataset manipulation functions. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01272" > IndexIVFPQ.cpp:1272< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a150a37cf3e8a7e37cb8dab1d5678bc02" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a150a37cf3e8a7e37cb8dab1d5678bc02" > faiss::IndexIVFPQ::search_preassigned< / a > < / div > < div class = "ttdeci" > void search_preassigned(idx_t n, const float *x, idx_t k, const idx_t *assign, const float *centroid_dis, float *distances, idx_t *labels, bool store_pairs) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l00930" > IndexIVFPQ.cpp:930< / a > < / div > < / div >
2018-01-09 22:44:43 +08:00
< div class = "ttc" id = "structfaiss_1_1Level1Quantizer_html_a3cf99e2ee92b8558a066f821efab95d5" > < div class = "ttname" > < a href = "structfaiss_1_1Level1Quantizer.html#a3cf99e2ee92b8558a066f821efab95d5" > faiss::Level1Quantizer::quantizer< / a > < / div > < div class = "ttdeci" > Index * quantizer< / div > < div class = "ttdoc" > quantizer that maps vectors to inverted lists < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8h_source.html#l00033" > IndexIVF.h:33< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1ProductQuantizer_html" > < div class = "ttname" > < a href = "structfaiss_1_1ProductQuantizer.html" > faiss::ProductQuantizer< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "ProductQuantizer_8h_source.html#l00025" > ProductQuantizer.h:25< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1Index2Layer_html_ab90d1de73cbc705a347cfc852ded6006" > < div class = "ttname" > < a href = "structfaiss_1_1Index2Layer.html#ab90d1de73cbc705a347cfc852ded6006" > faiss::Index2Layer::pq< / a > < / div > < div class = "ttdeci" > ProductQuantizer pq< / div > < div class = "ttdoc" > second level quantizer is always a PQ < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00201" > IndexIVFPQ.h:201< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a4b6154a5194d574d037ba78c137a2fa5" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a4b6154a5194d574d037ba78c137a2fa5" > faiss::IndexIVFPQR::add_with_ids< / a > < / div > < div class = "ttdeci" > void add_with_ids(idx_t n, const float *x, const long *xids) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01136" > IndexIVFPQ.cpp:1136< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index2Layer_html_af2e505c14e62234eb251fcb37ef012d2" > < div class = "ttname" > < a href = "structfaiss_1_1Index2Layer.html#af2e505c14e62234eb251fcb37ef012d2" > faiss::Index2Layer::reconstruct< / a > < / div > < div class = "ttdeci" > void reconstruct(idx_t key, float *recons) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01447" > IndexIVFPQ.cpp:1447< / a > < / div > < / div >
2018-01-09 22:44:43 +08:00
< div class = "ttc" id = "structfaiss_1_1Level1Quantizer_html_a1c4fc9d874d9492ee0ea27a5be388fa7" > < div class = "ttname" > < a href = "structfaiss_1_1Level1Quantizer.html#a1c4fc9d874d9492ee0ea27a5be388fa7" > faiss::Level1Quantizer::nlist< / a > < / div > < div class = "ttdeci" > size_t nlist< / div > < div class = "ttdoc" > number of possible key values < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVF_8h_source.html#l00034" > IndexIVF.h:34< / a > < / div > < / div >
2018-02-23 23:44:31 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_aee355b57acde203a3caed46a93e16a3c" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#aee355b57acde203a3caed46a93e16a3c" > faiss::IndexIVFPQ::find_duplicates< / a > < / div > < div class = "ttdeci" > size_t find_duplicates(idx_t *ids, size_t *lims) const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8cpp_source.html#l01051" > IndexIVFPQ.cpp:1051< / a > < / div > < / div >
2018-01-09 22:44:43 +08:00
< div class = "ttc" id = "namespacefaiss_html_afd12191c638da74760ff397cf319752c" > < div class = "ttname" > < a href = "namespacefaiss.html#afd12191c638da74760ff397cf319752c" > faiss::MetricType< / a > < / div > < div class = "ttdeci" > MetricType< / div > < div class = "ttdoc" > Some algorithms support both an inner product version and a L2 search version. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00043" > Index.h:43< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQR_html_a0b02a4151ceacc070352f8b15cc0ee0b" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQR.html#a0b02a4151ceacc070352f8b15cc0ee0b" > faiss::IndexIVFPQR::k_factor< / a > < / div > < div class = "ttdeci" > float k_factor< / div > < div class = "ttdoc" > factor between k requested in search and the k requested from the IVFPQ < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00154" > IndexIVFPQ.h:154< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexIVFPQ_html_a1c66ff073c18a1edbe8444c24d870583" > < div class = "ttname" > < a href = "structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583" > faiss::IndexIVFPQ::use_precomputed_table< / a > < / div > < div class = "ttdeci" > int use_precomputed_table< / div > < div class = "ttdoc" > if by_residual, build precompute tables < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexIVFPQ_8h_source.html#l00031" > IndexIVFPQ.h:31< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
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