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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 INDEX_FLAT_H< / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define INDEX_FLAT_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 >   < span class = "preprocessor" > #include < vector> < / span > < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "preprocessor" > #include " Index.h" < / span > < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < / div >
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< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < / div >
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< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "keyword" > namespace < / span > faiss {< / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "comment" > /** Index that stores the full vectors and performs exhaustive search */< / span > < / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat.html" > 23< / a > < / span >   < span class = "keyword" > struct < / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html" > IndexFlat< / a > : < a class = "code" href = "structfaiss_1_1Index.html" > Index< / a > {< span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < span class = "comment" > /// database vectors, size ntotal * d< / span > < / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > 25< / a > < / span >   < span class = "comment" > < / span > std::vector< float> < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > ;< / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "keyword" > explicit< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html" > IndexFlat< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > , < a class = "code" href = "namespacefaiss.html#afd12191c638da74760ff397cf319752c" > MetricType< / a > metric = METRIC_INNER_PRODUCT);< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html#a406f028c702edec72477eacc5733f59c" > 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 = "l00030" > < / a > < span class = "lineno" > 30< / span >   < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html#ab63dc34ef5d33f98f94aa0ade7c7324f" > reset< / a > () < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html#a85510d70f4675197df9988651e4692c9" > search< / a > (< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n,< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x,< / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > k,< / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < span class = "keywordtype" > float< / span > * distances,< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > * labels) < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html#ac56b7ed90ab65fab9c586a1e56006d12" > range_search< / a > (< / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n,< / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x,< / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < span class = "keywordtype" > float< / span > radius,< / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < a class = "code" href = "structfaiss_1_1RangeSearchResult.html" > RangeSearchResult< / a > * result) < span class = "keyword" > const override< / span > ;< / 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 >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html#ae4b33315752b62cff1626f9f967167b1" > 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 = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "comment" > /** compute distance with a subset of vectors< / span > < / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < span class = "comment" > * @param x query vectors, size n * d< / span > < / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < span class = "comment" > * @param labels indices of the vectors that should be compared< / span > < / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   < span class = "comment" > * for each query vector, size n * k< / span > < / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "comment" > * @param distances< / span > < / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < span class = "comment" > * corresponding output distances, size n * k< / span > < / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < span class = "comment" > */< / span > < / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html#a14b51786e7f98be1954eef35d02813a7" > compute_distance_subset< / a > (< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n,< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x,< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > k,< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < span class = "keywordtype" > float< / span > *distances,< / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > *labels) < span class = "keyword" > const< / 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" > /** remove some ids. NB that Because of the structure of the< / span > < / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < span class = "comment" > * indexing structre, the semantics of this operation are< / span > < / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < span class = "comment" > * different from the usual ones: the new ids are shifted */< / span > < / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < span class = "keywordtype" > long< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html#a8d1ea1d28e80849f8b0f5493679d68c9" > 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 = "l00067" > < / a > < span class = "lineno" > 67< / span >   < / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < a class = "code" href = "structfaiss_1_1IndexFlat.html" > IndexFlat< / a > () {}< / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   };< / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < / div >
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< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < / div >
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< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlatIP.html" > 73< / a > < / span >   < span class = "keyword" > struct < / span > < a class = "code" href = "structfaiss_1_1IndexFlatIP.html" > IndexFlatIP< / a > :< a class = "code" href = "structfaiss_1_1IndexFlat.html" > IndexFlat< / a > {< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < span class = "keyword" > explicit< / span > < a class = "code" href = "structfaiss_1_1IndexFlatIP.html" > IndexFlatIP< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ): < a class = "code" href = "structfaiss_1_1IndexFlat.html" > IndexFlat< / a > (d, METRIC_INNER_PRODUCT) {}< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < a class = "code" href = "structfaiss_1_1IndexFlatIP.html" > IndexFlatIP< / a > () {}< / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   };< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlatL2.html" > 79< / a > < / span >   < span class = "keyword" > struct < / span > < a class = "code" href = "structfaiss_1_1IndexFlatL2.html" > IndexFlatL2< / a > :< a class = "code" href = "structfaiss_1_1IndexFlat.html" > IndexFlat< / a > {< / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < span class = "keyword" > explicit< / span > < a class = "code" href = "structfaiss_1_1IndexFlatL2.html" > IndexFlatL2< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ): < a class = "code" href = "structfaiss_1_1IndexFlat.html" > IndexFlat< / a > (d, METRIC_L2) {}< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < a class = "code" href = "structfaiss_1_1IndexFlatL2.html" > IndexFlatL2< / a > () {}< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   };< / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   < / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < span class = "comment" > // same as an IndexFlatL2 but a value is subtracted from each distance< / span > < / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlatL2BaseShift.html" > 86< / a > < / span >   < span class = "keyword" > struct < / span > < a class = "code" href = "structfaiss_1_1IndexFlatL2BaseShift.html" > IndexFlatL2BaseShift< / a > : < a class = "code" href = "structfaiss_1_1IndexFlatL2.html" > IndexFlatL2< / a > {< / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   std::vector< float> shift;< / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   < / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   < a class = "code" href = "structfaiss_1_1IndexFlatL2BaseShift.html" > IndexFlatL2BaseShift< / a > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > , < span class = "keywordtype" > size_t< / span > nshift, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *shift);< / div >
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< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < / div >
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< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlatL2BaseShift.html#a16e9bf1aec9d18b3ebbe78fea6bfecc0" > search< / a > (< / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n,< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x,< / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > k,< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < span class = "keywordtype" > float< / span > * distances,< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > * labels) < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   };< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < span class = "comment" > /** Index that queries in a base_index (a fast one) and refines the< / span > < / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < span class = "comment" > * results with an exact search, hopefully improving the results.< / span > < / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   < span class = "comment" > */< / span > < / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexRefineFlat.html" > 103< / a > < / span >   < span class = "keyword" > struct < / span > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html" > IndexRefineFlat< / a > : < a class = "code" href = "structfaiss_1_1Index.html" > Index< / a > {< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < span class = "comment" > /// storage for full vectors< / span > < / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexRefineFlat.html#aab99f32713ece942ccefccf306292ca0" > 106< / a > < / span >   < span class = "comment" > < / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html" > IndexFlat< / a > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#aab99f32713ece942ccefccf306292ca0" > refine_index< / a > ;< / 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" > /// faster index to pre-select the vectors that should be filtered< / span > < / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0" > 109< / a > < / span >   < span class = "comment" > < / span > < a class = "code" href = "structfaiss_1_1Index.html" > Index< / a > *< a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0" > base_index< / a > ;< / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexRefineFlat.html#aaf0f6a094de0e9409effa81bedb9c7e2" > 110< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#aaf0f6a094de0e9409effa81bedb9c7e2" > own_fields< / a > ; < span class = "comment" > ///< should the base index be deallocated?< / span > < / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   < span class = "comment" > < / span > < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   < span class = "comment" > /// factor between k requested in search and the k requested from< / span > < / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   < span class = "comment" > /// the base_index (should be > = 1)< / span > < / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexRefineFlat.html#a7383fabb28db5b0df45ca4ea81f7acd4" > 114< / a > < / span >   < span class = "comment" > < / span > < span class = "keywordtype" > float< / span > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a7383fabb28db5b0df45ca4ea81f7acd4" > k_factor< / a > ;< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   < / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < span class = "keyword" > explicit< / span > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html" > IndexRefineFlat< / a > (< a class = "code" href = "structfaiss_1_1Index.html" > Index< / a > *< a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0" > base_index< / a > );< / div >
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< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < / div >
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< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html" > IndexRefineFlat< / a > ();< / div >
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< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < / div >
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< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a79c4c9b9ffabc4460ef4def6eb962e68" > 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 >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < / div >
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< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a10d5009c838e8653fd767ca48a3e6fcc" > 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 >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < / div >
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< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#ac3efe902315768afe83fa2b8ea5dc591" > reset< / a > () < span class = "keyword" > override< / span > ;< / div >
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< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   < / div >
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< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#ad04444de1e2c26c463cc52f3c076dd41" > search< / a > (< / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n,< / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x,< / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > k,< / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   < span class = "keywordtype" > float< / span > * distances,< / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > * labels) < span class = "keyword" > const override< / 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 >   ~< a class = "code" href = "structfaiss_1_1IndexRefineFlat.html" > IndexRefineFlat< / a > () < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   };< / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   < / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   < span class = "comment" > /// optimized version for 1D " vectors" < / span > < / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat1D.html" > 138< / a > < / span >   < span class = "comment" > < / span > < span class = "keyword" > struct < / span > < a class = "code" href = "structfaiss_1_1IndexFlat1D.html" > IndexFlat1D< / a > :< a class = "code" href = "structfaiss_1_1IndexFlatL2.html" > IndexFlatL2< / a > {< / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat1D.html#a8b025a468b088a343cf8079006de45e2" > 139< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a8b025a468b088a343cf8079006de45e2" > continuous_update< / a > ; < span class = "comment" > ///< is the permutation updated continuously?< / span > < / div >
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< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   < span class = "comment" > < / span > < / div >
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< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > 141< / a > < / span >   std::vector< idx_t> < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > perm< / a > ; < span class = "comment" > ///< sorted database indices< / span > < / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   < span class = "keyword" > explicit< / span > < a class = "code" href = "structfaiss_1_1IndexFlat1D.html" > IndexFlat1D< / a > (< span class = "keywordtype" > bool< / span > < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a8b025a468b088a343cf8079006de45e2" > continuous_update< / a > =< span class = "keyword" > true< / span > );< / div >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   < span class = "comment" > < / span > < / div >
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< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   < span class = "comment" > /// if not continuous_update, call this between the last add and< / span > < / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   < span class = "comment" > /// the first search< / span > < / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#ac7466c6c9b1e9e81ea19b846ddb8209e" > update_permutation< / a > ();< / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   < / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a5dc39280262484ecadda5e11162c2457" > 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 = "l00150" > < / a > < span class = "lineno" > 150< / span >   < / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#aa205c4ffa6cbd50f49ef9cb6cc050000" > reset< / a > () < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   < span class = "comment" > /// Warn: the distances returned are L1 not L2< / span > < / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a65736f2900865cd156faba4fcd260d05" > search< / a > (< / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n,< / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > * x,< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > k,< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   < span class = "keywordtype" > float< / span > * distances,< / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > * labels) < span class = "keyword" > const override< / span > ;< / 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 >   < / 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 >   }< / div >
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< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   < / div >
2017-06-21 21:54:28 +08:00
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   < span class = "preprocessor" > #endif< / span > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlatL2BaseShift_html_a16e9bf1aec9d18b3ebbe78fea6bfecc0" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlatL2BaseShift.html#a16e9bf1aec9d18b3ebbe78fea6bfecc0" > faiss::IndexFlatL2BaseShift::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 = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8cpp_source.html#l00133" > IndexFlat.cpp:133< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlat_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat.html" > faiss::IndexFlat< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00023" > IndexFlat.h:23< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexRefineFlat_html_ac3efe902315768afe83fa2b8ea5dc591" > < div class = "ttname" > < a href = "structfaiss_1_1IndexRefineFlat.html#ac3efe902315768afe83fa2b8ea5dc591" > faiss::IndexRefineFlat::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 = "IndexFlat_8cpp_source.html#l00184" > IndexFlat.cpp:184< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlat1D_html_a8b025a468b088a343cf8079006de45e2" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat1D.html#a8b025a468b088a343cf8079006de45e2" > faiss::IndexFlat1D::continuous_update< / a > < / div > < div class = "ttdeci" > bool continuous_update< / div > < div class = "ttdoc" > is the permutation updated continuously? < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00139" > IndexFlat.h:139< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlat1D_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat1D.html" > faiss::IndexFlat1D< / a > < / div > < div class = "ttdoc" > optimized version for 1D & quot;vectors& quot; < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00138" > IndexFlat.h:138< / 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 >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexFlatL2_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlatL2.html" > faiss::IndexFlatL2< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00079" > IndexFlat.h:79< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlat_html_a85510d70f4675197df9988651e4692c9" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat.html#a85510d70f4675197df9988651e4692c9" > faiss::IndexFlat::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 = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8cpp_source.html#l00042" > IndexFlat.cpp:42< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlat_html_ab63dc34ef5d33f98f94aa0ade7c7324f" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat.html#ab63dc34ef5d33f98f94aa0ade7c7324f" > faiss::IndexFlat::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 = "IndexFlat_8cpp_source.html#l00036" > IndexFlat.cpp:36< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlat1D_html_ac7466c6c9b1e9e81ea19b846ddb8209e" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat1D.html#ac7466c6c9b1e9e81ea19b846ddb8209e" > faiss::IndexFlat1D::update_permutation< / a > < / div > < div class = "ttdeci" > void update_permutation()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8cpp_source.html#l00284" > IndexFlat.cpp:284< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlat_html_ae4b33315752b62cff1626f9f967167b1" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat.html#ae4b33315752b62cff1626f9f967167b1" > faiss::IndexFlat::reconstruct< / a > < / div > < div class = "ttdeci" > void reconstruct(idx_t key, float *recons) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8cpp_source.html#l00118" > IndexFlat.cpp:118< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlat1D_html_a5dc39280262484ecadda5e11162c2457" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat1D.html#a5dc39280262484ecadda5e11162c2457" > faiss::IndexFlat1D::add< / a > < / div > < div class = "ttdeci" > void add(idx_t n, const float *x) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8cpp_source.html#l00294" > IndexFlat.cpp:294< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlat_html_a8d1ea1d28e80849f8b0f5493679d68c9" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat.html#a8d1ea1d28e80849f8b0f5493679d68c9" > faiss::IndexFlat::remove_ids< / a > < / div > < div class = "ttdeci" > long remove_ids(const IDSelector & sel) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8cpp_source.html#l00095" > IndexFlat.cpp:95< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlatIP_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlatIP.html" > faiss::IndexFlatIP< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00073" > IndexFlat.h:73< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexRefineFlat_html_ad04444de1e2c26c463cc52f3c076dd41" > < div class = "ttname" > < a href = "structfaiss_1_1IndexRefineFlat.html#ad04444de1e2c26c463cc52f3c076dd41" > faiss::IndexRefineFlat::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 = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8cpp_source.html#l00219" > IndexFlat.cpp:219< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexRefineFlat_html_a4acc0b3a8c33e5dd8851448ac162dfd0" > < div class = "ttname" > < a href = "structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0" > faiss::IndexRefineFlat::base_index< / a > < / div > < div class = "ttdeci" > Index * base_index< / div > < div class = "ttdoc" > faster index to pre-select the vectors that should be filtered < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00109" > IndexFlat.h:109< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexRefineFlat_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexRefineFlat.html" > faiss::IndexRefineFlat< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00103" > IndexFlat.h:103< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexRefineFlat_html_aab99f32713ece942ccefccf306292ca0" > < div class = "ttname" > < a href = "structfaiss_1_1IndexRefineFlat.html#aab99f32713ece942ccefccf306292ca0" > faiss::IndexRefineFlat::refine_index< / a > < / div > < div class = "ttdeci" > IndexFlat refine_index< / div > < div class = "ttdoc" > storage for full vectors < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00106" > IndexFlat.h:106< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexRefineFlat_html_aaf0f6a094de0e9409effa81bedb9c7e2" > < div class = "ttname" > < a href = "structfaiss_1_1IndexRefineFlat.html#aaf0f6a094de0e9409effa81bedb9c7e2" > faiss::IndexRefineFlat::own_fields< / a > < / div > < div class = "ttdeci" > bool own_fields< / div > < div class = "ttdoc" > should the base index be deallocated? < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00110" > IndexFlat.h:110< / a > < / div > < / div >
< 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 >
< div class = "ttc" id = "structfaiss_1_1IndexFlat_html_ac56b7ed90ab65fab9c586a1e56006d12" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat.html#ac56b7ed90ab65fab9c586a1e56006d12" > faiss::IndexFlat::range_search< / a > < / div > < div class = "ttdeci" > void range_search(idx_t n, const float *x, float radius, RangeSearchResult *result) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8cpp_source.html#l00058" > IndexFlat.cpp:58< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexRefineFlat_html_a79c4c9b9ffabc4460ef4def6eb962e68" > < div class = "ttname" > < a href = "structfaiss_1_1IndexRefineFlat.html#a79c4c9b9ffabc4460ef4def6eb962e68" > faiss::IndexRefineFlat::train< / a > < / div > < div class = "ttdeci" > void train(idx_t n, const float *x) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8cpp_source.html#l00171" > IndexFlat.cpp:171< / a > < / div > < / div >
< 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 >
< div class = "ttc" id = "structfaiss_1_1IndexFlat_html_a406f028c702edec72477eacc5733f59c" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat.html#a406f028c702edec72477eacc5733f59c" > faiss::IndexFlat::add< / a > < / div > < div class = "ttdeci" > void add(idx_t n, const float *x) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8cpp_source.html#l00030" > IndexFlat.cpp:30< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlat1D_html_a65736f2900865cd156faba4fcd260d05" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat1D.html#a65736f2900865cd156faba4fcd260d05" > faiss::IndexFlat1D::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" > Warn: the distances returned are L1 not L2. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8cpp_source.html#l00307" > IndexFlat.cpp:307< / a > < / div > < / div >
2017-07-18 17:43:35 +08:00
< div class = "ttc" id = "structfaiss_1_1RangeSearchResult_html" > < div class = "ttname" > < a href = "structfaiss_1_1RangeSearchResult.html" > faiss::RangeSearchResult< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "AuxIndexStructures_8h_source.html#l00029" > AuxIndexStructures.h:29< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1IndexFlat_html_a14b51786e7f98be1954eef35d02813a7" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat.html#a14b51786e7f98be1954eef35d02813a7" > faiss::IndexFlat::compute_distance_subset< / a > < / div > < div class = "ttdeci" > void compute_distance_subset(idx_t n, const float *x, idx_t k, float *distances, const idx_t *labels) const < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8cpp_source.html#l00073" > IndexFlat.cpp:73< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlatL2BaseShift_html" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlatL2BaseShift.html" > faiss::IndexFlatL2BaseShift< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00086" > IndexFlat.h:86< / a > < / div > < / div >
< 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 >
< div class = "ttc" id = "structfaiss_1_1IndexFlat_html_a9001de47890fe5d2eced9551d3613d47" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > faiss::IndexFlat::xb< / a > < / div > < div class = "ttdeci" > std::vector< float > xb< / div > < div class = "ttdoc" > database vectors, size ntotal * d < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00025" > IndexFlat.h:25< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexRefineFlat_html_a7383fabb28db5b0df45ca4ea81f7acd4" > < div class = "ttname" > < a href = "structfaiss_1_1IndexRefineFlat.html#a7383fabb28db5b0df45ca4ea81f7acd4" > faiss::IndexRefineFlat::k_factor< / a > < / div > < div class = "ttdeci" > float k_factor< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00114" > IndexFlat.h:114< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlat1D_html_aa205c4ffa6cbd50f49ef9cb6cc050000" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat1D.html#aa205c4ffa6cbd50f49ef9cb6cc050000" > faiss::IndexFlat1D::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 = "IndexFlat_8cpp_source.html#l00301" > IndexFlat.cpp:301< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IndexFlat1D_html_a3442f0d86a14108534f99eea0b7d4d3f" > < div class = "ttname" > < a href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > faiss::IndexFlat1D::perm< / a > < / div > < div class = "ttdeci" > std::vector< idx_t > perm< / div > < div class = "ttdoc" > sorted database indices < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8h_source.html#l00141" > IndexFlat.h:141< / a > < / div > < / div >
< 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 vetsion 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_1IndexRefineFlat_html_a10d5009c838e8653fd767ca48a3e6fcc" > < div class = "ttname" > < a href = "structfaiss_1_1IndexRefineFlat.html#a10d5009c838e8653fd767ca48a3e6fcc" > faiss::IndexRefineFlat::add< / a > < / div > < div class = "ttdeci" > void add(idx_t n, const float *x) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "IndexFlat_8cpp_source.html#l00177" > IndexFlat.cpp:177< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
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