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2018-12-20 00:48:35 +08:00
< title > Faiss: /tmp/faiss/IndexFlat.cpp Source File< / title >
2017-02-23 06:26:44 +08:00
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< div class = "title" > /tmp/faiss/IndexFlat.cpp< / div > < / div >
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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 >
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< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "comment" > // -*- c++ -*-< / span > < / div >
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< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "preprocessor" > #include " IndexFlat.h" < / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "preprocessor" > #include < cstring> < / span > < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #include " utils.h" < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "preprocessor" > #include " Heap.h" < / 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 " FaissAssert.h" < / span > < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "preprocessor" > #include " AuxIndexStructures.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 >
< 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 >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   IndexFlat::IndexFlat (idx_t d, < a class = "code" href = "namespacefaiss.html#afd12191c638da74760ff397cf319752c" > MetricType< / a > metric):< / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   Index(d, metric)< / 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 >   }< / div >
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< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < / div >
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< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < / div >
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< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat.html#a406f028c702edec72477eacc5733f59c" > 31< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html#a406f028c702edec72477eacc5733f59c" > IndexFlat::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) {< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .insert(< a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .end(), x, x + n * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > );< / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > += n;< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   }< / div >
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< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < / div >
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< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat.html#ab63dc34ef5d33f98f94aa0ade7c7324f" > 37< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html#ab63dc34ef5d33f98f94aa0ade7c7324f" > IndexFlat::reset< / a > () {< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .clear();< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > = 0;< / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   }< / div >
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< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < / div >
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< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat.html#a85510d70f4675197df9988651e4692c9" > 43< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html#a85510d70f4675197df9988651e4692c9" > IndexFlat::search< / 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 = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "keywordtype" > float< / span > *distances, < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > *labels)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < span class = "comment" > // we see the distances and labels as heaps< / span > < / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > == METRIC_INNER_PRODUCT) {< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < a class = "code" href = "structfaiss_1_1HeapArray.html" > float_minheap_array_t< / a > res = {< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   size_t(n), size_t(k), labels, distances};< / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < a class = "code" href = "namespacefaiss.html#a880c7318971f866267a86945aaa61b17" > knn_inner_product< / a > (x, < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .data(), < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > , n, < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > , & res);< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > == METRIC_L2) {< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < a class = "code" href = "structfaiss_1_1HeapArray.html" > float_maxheap_array_t< / a > res = {< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   size_t(n), size_t(k), labels, distances};< / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < a class = "code" href = "namespacefaiss.html#a2f803e3d3b07cfab63699c89de161237" > knn_L2sqr< / a > (x, < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .data(), < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > , n, < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > , & res);< / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   }< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   }< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat.html#ac56b7ed90ab65fab9c586a1e56006d12" > 59< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html#ac56b7ed90ab65fab9c586a1e56006d12" > IndexFlat::range_search< / 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 > radius,< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < a class = "code" href = "structfaiss_1_1RangeSearchResult.html" > RangeSearchResult< / a > *result)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "keywordflow" > switch< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > ) {< / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < span class = "keywordflow" > case< / span > METRIC_INNER_PRODUCT:< / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < a class = "code" href = "namespacefaiss.html#ab29d725b808df6f142b80f21aa45e507" > range_search_inner_product< / a > (x, < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .data(), < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > , n, < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ,< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   radius, result);< / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < span class = "keywordflow" > case< / span > METRIC_L2:< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < a class = "code" href = "namespacefaiss.html#a1faa7bd079c9b1addf3058ddf882a000" > range_search_L2sqr< / a > (x, < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .data(), < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > , n, < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > , radius, result);< / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < span class = "keywordflow" > break< / 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" > 73< / span >   < / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat.html#a14b51786e7f98be1954eef35d02813a7" > 74< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html#a14b51786e7f98be1954eef35d02813a7" > IndexFlat::compute_distance_subset< / a > (< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n,< / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x,< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > k,< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < span class = "keywordtype" > float< / span > *distances,< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / 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 = "l00080" > < / a > < span class = "lineno" > 80< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < span class = "keywordflow" > switch< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > ) {< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < span class = "keywordflow" > case< / span > METRIC_INNER_PRODUCT:< / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   fvec_inner_products_by_idx (< / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   distances,< / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   x, < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .data(), labels, < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > , n, k);< / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   < span class = "keywordflow" > case< / span > METRIC_L2:< / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   fvec_L2sqr_by_idx (< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   distances,< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   x, < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .data(), labels, < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > , n, k);< / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   }< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   }< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat.html#a8d1ea1d28e80849f8b0f5493679d68c9" > 96< / a > < / span >   < span class = "keywordtype" > long< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html#a8d1ea1d28e80849f8b0f5493679d68c9" > IndexFlat::remove_ids< / a > (< span class = "keyword" > const< / span > < a class = "code" href = "structfaiss_1_1IDSelector.html" > IDSelector< / a > & sel)< / 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 >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > j = 0;< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   < span class = "keywordflow" > for< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > i = 0; i < < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ; i++) {< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < span class = "keywordflow" > if< / span > (sel.is_member (i)) {< / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < span class = "comment" > // should be removed< / span > < / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   < span class = "keywordflow" > if< / span > (i > j) {< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   memmove (& < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > [< a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > * j], & < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > [< a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > * i], < span class = "keyword" > sizeof< / span > (< a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > [0]) * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > );< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   }< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   j++;< / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   }< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   }< / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < span class = "keywordtype" > long< / span > nremove = ntotal - j;< / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < span class = "keywordflow" > if< / span > (nremove > 0) {< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   ntotal = j;< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .resize (ntotal * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > );< / 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 >   < span class = "keywordflow" > return< / span > nremove;< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   }< / div >
2017-06-21 21:54:28 +08:00
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < / div >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   < / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat.html#ae4b33315752b62cff1626f9f967167b1" > 119< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat.html#ae4b33315752b62cff1626f9f967167b1" > IndexFlat::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< / span > < / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   memcpy (recons, & (< a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > [key * < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > ]), < span class = "keyword" > sizeof< / span > (*recons) * d);< / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / 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 = "comment" > /***************************************************< / span > < / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   < span class = "comment" > * IndexFlatL2BaseShift< / span > < / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < span class = "comment" > ***************************************************/< / span > < / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   IndexFlatL2BaseShift::IndexFlatL2BaseShift (idx_t d, < span class = "keywordtype" > size_t< / span > nshift, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *shift):< / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   < a class = "code" href = "structfaiss_1_1IndexFlatL2.html" > IndexFlatL2< / a > (d), shift (nshift)< / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   {< / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   memcpy (this-> shift.data(), shift, < span class = "keyword" > sizeof< / span > (float) * nshift);< / 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 >   < / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlatL2BaseShift.html#a16e9bf1aec9d18b3ebbe78fea6bfecc0" > 134< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlatL2BaseShift.html#a16e9bf1aec9d18b3ebbe78fea6bfecc0" > IndexFlatL2BaseShift::search< / a > (< / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > n,< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x,< / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > k,< / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   < span class = "keywordtype" > float< / span > *distances,< / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / 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 = "l00140" > < / a > < span class = "lineno" > 140< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   FAISS_THROW_IF_NOT (shift.size() == < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > );< / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   < / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   < a class = "code" href = "structfaiss_1_1HeapArray.html" > float_maxheap_array_t< / a > res = {< / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   size_t(n), size_t(k), labels, distances};< / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   < a class = "code" href = "namespacefaiss.html#a5eb1701e46123827966f2a56da893d1d" > knn_L2sqr_base_shift< / a > (x, < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .data(), < a class = "code" href = "structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d" > d< / a > , n, < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > , & res, shift.data());< / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   }< / div >
2017-06-21 21:54:28 +08:00
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   < / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   < / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   < / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   < span class = "comment" > /***************************************************< / span > < / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   < span class = "comment" > * IndexRefineFlat< / 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 >   < / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   IndexRefineFlat::IndexRefineFlat (< a class = "code" href = "structfaiss_1_1Index.html" > Index< / a > *base_index):< / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   < a class = "code" href = "structfaiss_1_1Index.html" > Index< / a > (base_index-> d, base_index-> metric_type),< / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   refine_index (base_index-> d, base_index-> metric_type),< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   base_index (base_index), own_fields (false),< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   k_factor (1)< / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   {< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > = base_index-> < a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > ;< / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   FAISS_THROW_IF_NOT_MSG (base_index-> < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > == 0,< / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   < span class = "stringliteral" > " base_index should be empty in the beginning" < / span > );< / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   }< / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   < / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   IndexRefineFlat::IndexRefineFlat () {< / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0" > base_index< / a > = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#aaf0f6a094de0e9409effa81bedb9c7e2" > own_fields< / a > = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a7383fabb28db5b0df45ca4ea81f7acd4" > k_factor< / a > = 1;< / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   }< / div >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   < / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   < / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexRefineFlat.html#a79c4c9b9ffabc4460ef4def6eb962e68" > 172< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a79c4c9b9ffabc4460ef4def6eb962e68" > IndexRefineFlat::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)< / 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 >   < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0" > base_index< / a > -> < a class = "code" href = "structfaiss_1_1Index.html#abf601502bdbfa02b9d7bcd7b3671b71d" > train< / a > (n, x);< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > = < span class = "keyword" > true< / 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 >   < / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexRefineFlat.html#a10d5009c838e8653fd767ca48a3e6fcc" > 178< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a10d5009c838e8653fd767ca48a3e6fcc" > IndexRefineFlat::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) {< / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   FAISS_THROW_IF_NOT (< a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > );< / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0" > base_index< / a > -> < a class = "code" href = "structfaiss_1_1Index.html#a1b5e9ac70adbce0897dd6c8276ad96f2" > add< / a > (n, x);< / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#aab99f32713ece942ccefccf306292ca0" > refine_index< / a > .< a class = "code" href = "structfaiss_1_1IndexFlat.html#a406f028c702edec72477eacc5733f59c" > add< / a > (n, x);< / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > = < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#aab99f32713ece942ccefccf306292ca0" > refine_index< / a > .< a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ;< / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   }< / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   < / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexRefineFlat.html#ac3efe902315768afe83fa2b8ea5dc591" > 185< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#ac3efe902315768afe83fa2b8ea5dc591" > IndexRefineFlat::reset< / a > ()< / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   {< / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0" > base_index< / a > -> < a class = "code" href = "structfaiss_1_1Index.html#a849361f5f0ab0aba8d419c86f2594191" > reset< / a > ();< / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#aab99f32713ece942ccefccf306292ca0" > refine_index< / a > .< a class = "code" href = "structfaiss_1_1IndexFlat.html#ab63dc34ef5d33f98f94aa0ade7c7324f" > reset< / a > ();< / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > = 0;< / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   }< / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   < / div >
< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   < span class = "keyword" > typedef< / span > < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > faiss::Index::idx_t< / a > idx_t;< / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > 194< / span >   < / div >
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   < span class = "keyword" > template< / span > < < span class = "keyword" > class< / span > C> < / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > reorder_2_heaps (< / div >
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   idx_t n,< / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   idx_t k, idx_t *labels, < span class = "keywordtype" > float< / span > *distances,< / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   idx_t k_base, < span class = "keyword" > const< / span > idx_t *base_labels, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *base_distances)< / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   {< / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   < span class = "preprocessor" > #pragma omp parallel for< / span > < / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   < span class = "preprocessor" > < / span > < span class = "keywordflow" > for< / span > (idx_t i = 0; i < n; i++) {< / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   idx_t *idxo = labels + i * k;< / div >
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   < span class = "keywordtype" > float< / span > *diso = distances + i * k;< / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   < span class = "keyword" > const< / span > idx_t *idxi = base_labels + i * k_base;< / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *disi = base_distances + i * k_base;< / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   < / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   heap_heapify< C> (k, diso, idxo, disi, idxi, k);< / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   < span class = "keywordflow" > if< / span > (k_base != k) { < span class = "comment" > // add remaining elements< / span > < / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   heap_addn< C> (k, diso, idxo, disi + k, idxi + k, k_base - k);< / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   }< / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   heap_reorder< C> (k, diso, idxo);< / div >
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   }< / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   }< / div >
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< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   < / div >
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< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   < / div >
< div class = "line" > < a name = "l00217" > < / a > < span class = "lineno" > 217< / span >   }< / div >
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< div class = "line" > < a name = "l00218" > < / a > < span class = "lineno" > 218< / span >   < / div >
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< div class = "line" > < a name = "l00219" > < / a > < span class = "lineno" > 219< / span >   < / div >
< div class = "line" > < a name = "l00220" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexRefineFlat.html#ad04444de1e2c26c463cc52f3c076dd41" > 220< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#ad04444de1e2c26c463cc52f3c076dd41" > IndexRefineFlat::search< / a > (< / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   idx_t n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x, idx_t k,< / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   < span class = "keywordtype" > float< / span > *distances, idx_t *labels)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l00224" > < / a > < span class = "lineno" > 224< / span >   FAISS_THROW_IF_NOT (< a class = "code" href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > is_trained< / a > );< / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   idx_t k_base = < a class = "code" href = "structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4" > idx_t< / a > (k * < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a7383fabb28db5b0df45ca4ea81f7acd4" > k_factor< / a > );< / div >
< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / span >   idx_t * base_labels = labels;< / div >
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   < span class = "keywordtype" > float< / span > * base_distances = distances;< / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   < a class = "code" href = "structfaiss_1_1ScopeDeleter.html" > ScopeDeleter< idx_t> < / a > del1;< / div >
< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   < a class = "code" href = "structfaiss_1_1ScopeDeleter.html" > ScopeDeleter< float> < / a > del2;< / div >
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< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   < / div >
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< div class = "line" > < a name = "l00231" > < / a > < span class = "lineno" > 231< / span >   < / div >
< div class = "line" > < a name = "l00232" > < / a > < span class = "lineno" > 232< / span >   < span class = "keywordflow" > if< / span > (k != k_base) {< / div >
< div class = "line" > < a name = "l00233" > < / a > < span class = "lineno" > 233< / span >   base_labels = < span class = "keyword" > new< / span > idx_t [n * k_base];< / div >
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   del1.set (base_labels);< / div >
< div class = "line" > < a name = "l00235" > < / a > < span class = "lineno" > 235< / span >   base_distances = < span class = "keyword" > new< / span > < span class = "keywordtype" > float< / span > [n * k_base];< / div >
< div class = "line" > < a name = "l00236" > < / a > < span class = "lineno" > 236< / span >   del2.set (base_distances);< / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   }< / div >
< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > 238< / span >   < / div >
< div class = "line" > < a name = "l00239" > < / a > < span class = "lineno" > 239< / span >   < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0" > base_index< / a > -> < a class = "code" href = "structfaiss_1_1Index.html#aced51b1ebc33c47ab3ae15ea906559a7" > search< / a > (n, x, k_base, base_distances, base_labels);< / div >
< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > 240< / span >   < / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < n * k_base; i++)< / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   assert (base_labels[i] > = -1 & & < / div >
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   base_labels[i] < < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > );< / 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 >   < span class = "comment" > // compute refined distances< / span > < / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#aab99f32713ece942ccefccf306292ca0" > refine_index< / a > .< a class = "code" href = "structfaiss_1_1IndexFlat.html#a14b51786e7f98be1954eef35d02813a7" > compute_distance_subset< / a > (< / div >
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   n, x, k_base, base_distances, base_labels);< / 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 >   < span class = "comment" > // sort and store result< / span > < / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > == METRIC_L2) {< / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   < span class = "keyword" > typedef< / span > < a class = "code" href = "structfaiss_1_1CMax.html" > CMax < float, idx_t> < / a > C;< / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > 252< / span >   reorder_2_heaps< C> (< / div >
< div class = "line" > < a name = "l00253" > < / a > < span class = "lineno" > 253< / span >   n, k, labels, distances,< / div >
< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   k_base, base_labels, base_distances);< / div >
< div class = "line" > < a name = "l00255" > < / a > < span class = "lineno" > 255< / span >   < / div >
< div class = "line" > < a name = "l00256" > < / a > < span class = "lineno" > 256< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > metric_type< / a > == METRIC_INNER_PRODUCT) {< / div >
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > 257< / span >   < span class = "keyword" > typedef< / span > < a class = "code" href = "structfaiss_1_1CMin.html" > CMin < float, idx_t> < / a > C;< / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   reorder_2_heaps< C> (< / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   n, k, labels, distances,< / div >
< div class = "line" > < a name = "l00260" > < / a > < span class = "lineno" > 260< / span >   k_base, base_labels, base_distances);< / div >
< div class = "line" > < a name = "l00261" > < / a > < span class = "lineno" > 261< / span >   }< / div >
< div class = "line" > < a name = "l00262" > < / a > < span class = "lineno" > 262< / span >   < / div >
< div class = "line" > < a name = "l00263" > < / a > < span class = "lineno" > 263< / span >   }< / div >
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< div class = "line" > < a name = "l00264" > < / a > < span class = "lineno" > 264< / span >   < / div >
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< div class = "line" > < a name = "l00265" > < / a > < span class = "lineno" > 265< / span >   < / div >
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< div class = "line" > < a name = "l00266" > < / a > < span class = "lineno" > 266< / span >   < / div >
< div class = "line" > < a name = "l00267" > < / a > < span class = "lineno" > 267< / span >   IndexRefineFlat::~IndexRefineFlat ()< / div >
< div class = "line" > < a name = "l00268" > < / a > < span class = "lineno" > 268< / span >   {< / div >
< div class = "line" > < a name = "l00269" > < / a > < span class = "lineno" > 269< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#aaf0f6a094de0e9409effa81bedb9c7e2" > own_fields< / a > ) < span class = "keyword" > delete< / span > < a class = "code" href = "structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0" > base_index< / a > ;< / div >
< div class = "line" > < a name = "l00270" > < / a > < span class = "lineno" > 270< / span >   }< / div >
< div class = "line" > < a name = "l00271" > < / a > < span class = "lineno" > 271< / span >   < / div >
< div class = "line" > < a name = "l00272" > < / a > < span class = "lineno" > 272< / span >   < span class = "comment" > /***************************************************< / span > < / div >
< div class = "line" > < a name = "l00273" > < / a > < span class = "lineno" > 273< / span >   < span class = "comment" > * IndexFlat1D< / span > < / div >
< div class = "line" > < a name = "l00274" > < / a > < span class = "lineno" > 274< / span >   < span class = "comment" > ***************************************************/< / span > < / div >
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< div class = "line" > < a name = "l00275" > < / a > < span class = "lineno" > 275< / span >   < / div >
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< div class = "line" > < a name = "l00276" > < / a > < span class = "lineno" > 276< / span >   < / div >
< div class = "line" > < a name = "l00277" > < / a > < span class = "lineno" > 277< / span >   IndexFlat1D::IndexFlat1D (< span class = "keywordtype" > bool< / span > continuous_update):< / div >
< div class = "line" > < a name = "l00278" > < / a > < span class = "lineno" > 278< / span >   IndexFlatL2 (1),< / div >
< div class = "line" > < a name = "l00279" > < / a > < span class = "lineno" > 279< / span >   continuous_update (continuous_update)< / div >
< div class = "line" > < a name = "l00280" > < / a > < span class = "lineno" > 280< / span >   {< / div >
< div class = "line" > < a name = "l00281" > < / a > < span class = "lineno" > 281< / span >   }< / div >
< div class = "line" > < a name = "l00282" > < / a > < span class = "lineno" > 282< / span >   < span class = "comment" > < / span > < / div >
< div class = "line" > < a name = "l00283" > < / a > < span class = "lineno" > 283< / span >   < span class = "comment" > /// if not continuous_update, call this between the last add and< / span > < / div >
< div class = "line" > < a name = "l00284" > < / a > < span class = "lineno" > 284< / span >   < span class = "comment" > /// the first search< / span > < / div >
< div class = "line" > < a name = "l00285" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat1D.html#ac7466c6c9b1e9e81ea19b846ddb8209e" > 285< / a > < / span >   < span class = "comment" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#ac7466c6c9b1e9e81ea19b846ddb8209e" > IndexFlat1D::update_permutation< / a > ()< / div >
< div class = "line" > < a name = "l00286" > < / a > < span class = "lineno" > 286< / span >   {< / div >
< div class = "line" > < a name = "l00287" > < / a > < span class = "lineno" > 287< / span >   < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > perm< / a > .resize (< a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > );< / div >
< div class = "line" > < a name = "l00288" > < / a > < span class = "lineno" > 288< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > < 1000000) {< / div >
< div class = "line" > < a name = "l00289" > < / a > < span class = "lineno" > 289< / span >   fvec_argsort (< a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > , < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .data(), (< span class = "keywordtype" > size_t< / span > *)< a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > perm< / a > .data());< / div >
< div class = "line" > < a name = "l00290" > < / a > < span class = "lineno" > 290< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00291" > < / a > < span class = "lineno" > 291< / span >   fvec_argsort_parallel (< a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > , < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > .data(), (< span class = "keywordtype" > size_t< / span > *)< a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > perm< / a > .data());< / div >
< div class = "line" > < a name = "l00292" > < / a > < span class = "lineno" > 292< / span >   }< / div >
< div class = "line" > < a name = "l00293" > < / a > < span class = "lineno" > 293< / span >   }< / div >
< div class = "line" > < a name = "l00294" > < / a > < span class = "lineno" > 294< / span >   < / div >
< div class = "line" > < a name = "l00295" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat1D.html#a5dc39280262484ecadda5e11162c2457" > 295< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a5dc39280262484ecadda5e11162c2457" > IndexFlat1D::add< / a > (idx_t n, < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x)< / div >
< div class = "line" > < a name = "l00296" > < / a > < span class = "lineno" > 296< / span >   {< / div >
< div class = "line" > < a name = "l00297" > < / a > < span class = "lineno" > 297< / span >   < a class = "code" href = "structfaiss_1_1IndexFlat.html#a406f028c702edec72477eacc5733f59c" > IndexFlatL2::add< / a > (n, x);< / div >
< div class = "line" > < a name = "l00298" > < / a > < span class = "lineno" > 298< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a8b025a468b088a343cf8079006de45e2" > continuous_update< / a > )< / div >
< div class = "line" > < a name = "l00299" > < / a > < span class = "lineno" > 299< / span >   < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#ac7466c6c9b1e9e81ea19b846ddb8209e" > update_permutation< / a > ();< / div >
< div class = "line" > < a name = "l00300" > < / a > < span class = "lineno" > 300< / span >   }< / div >
< div class = "line" > < a name = "l00301" > < / a > < span class = "lineno" > 301< / span >   < / div >
< div class = "line" > < a name = "l00302" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat1D.html#aa205c4ffa6cbd50f49ef9cb6cc050000" > 302< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#aa205c4ffa6cbd50f49ef9cb6cc050000" > IndexFlat1D::reset< / a > ()< / div >
< div class = "line" > < a name = "l00303" > < / a > < span class = "lineno" > 303< / span >   {< / div >
< div class = "line" > < a name = "l00304" > < / a > < span class = "lineno" > 304< / span >   < a class = "code" href = "structfaiss_1_1IndexFlat.html#ab63dc34ef5d33f98f94aa0ade7c7324f" > IndexFlatL2::reset< / a > ();< / div >
< div class = "line" > < a name = "l00305" > < / a > < span class = "lineno" > 305< / span >   < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > perm< / a > .clear();< / div >
< div class = "line" > < a name = "l00306" > < / a > < span class = "lineno" > 306< / span >   }< / div >
< div class = "line" > < a name = "l00307" > < / a > < span class = "lineno" > 307< / span >   < / div >
< div class = "line" > < a name = "l00308" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1IndexFlat1D.html#a65736f2900865cd156faba4fcd260d05" > 308< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a65736f2900865cd156faba4fcd260d05" > IndexFlat1D::search< / a > (< / div >
< div class = "line" > < a name = "l00309" > < / a > < span class = "lineno" > 309< / span >   idx_t n,< / div >
< div class = "line" > < a name = "l00310" > < / a > < span class = "lineno" > 310< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > float< / span > *x,< / div >
< div class = "line" > < a name = "l00311" > < / a > < span class = "lineno" > 311< / span >   idx_t k,< / div >
< div class = "line" > < a name = "l00312" > < / a > < span class = "lineno" > 312< / span >   < span class = "keywordtype" > float< / span > *distances,< / div >
< div class = "line" > < a name = "l00313" > < / a > < span class = "lineno" > 313< / span >   idx_t *labels)< span class = "keyword" > const< / span > < / div >
< div class = "line" > < a name = "l00314" > < / a > < span class = "lineno" > 314< / span >   < span class = "keyword" > < / span > {< / div >
< div class = "line" > < a name = "l00315" > < / a > < span class = "lineno" > 315< / span >   FAISS_THROW_IF_NOT_MSG (< a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > perm< / a > .size() == < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ,< / div >
< div class = "line" > < a name = "l00316" > < / a > < span class = "lineno" > 316< / span >   < span class = "stringliteral" > " Call update_permutation before search" < / span > );< / div >
< div class = "line" > < a name = "l00317" > < / a > < span class = "lineno" > 317< / span >   < / div >
< div class = "line" > < a name = "l00318" > < / a > < span class = "lineno" > 318< / span >   < span class = "preprocessor" > #pragma omp parallel for< / span > < / div >
< div class = "line" > < a name = "l00319" > < / a > < span class = "lineno" > 319< / span >   < span class = "preprocessor" > < / span > < span class = "keywordflow" > for< / span > (idx_t i = 0; i < n; i++) {< / div >
< div class = "line" > < a name = "l00320" > < / a > < span class = "lineno" > 320< / span >   < / div >
< div class = "line" > < a name = "l00321" > < / a > < span class = "lineno" > 321< / span >   < span class = "keywordtype" > float< / span > q = x[i]; < span class = "comment" > // query< / span > < / div >
< div class = "line" > < a name = "l00322" > < / a > < span class = "lineno" > 322< / span >   < span class = "keywordtype" > float< / span > *D = distances + i * k;< / div >
< div class = "line" > < a name = "l00323" > < / a > < span class = "lineno" > 323< / span >   idx_t *I = labels + i * k;< / div >
< div class = "line" > < a name = "l00324" > < / a > < span class = "lineno" > 324< / span >   < / div >
< div class = "line" > < a name = "l00325" > < / a > < span class = "lineno" > 325< / span >   < span class = "comment" > // binary search< / span > < / div >
< div class = "line" > < a name = "l00326" > < / a > < span class = "lineno" > 326< / span >   idx_t i0 = 0, i1 = < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ;< / div >
< div class = "line" > < a name = "l00327" > < / a > < span class = "lineno" > 327< / span >   idx_t wp = 0;< / div >
< div class = "line" > < a name = "l00328" > < / a > < span class = "lineno" > 328< / span >   < / div >
< div class = "line" > < a name = "l00329" > < / a > < span class = "lineno" > 329< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > [< a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > perm< / a > [i0]] > q) {< / div >
< div class = "line" > < a name = "l00330" > < / a > < span class = "lineno" > 330< / span >   i1 = 0;< / div >
< div class = "line" > < a name = "l00331" > < / a > < span class = "lineno" > 331< / span >   < span class = "keywordflow" > goto< / span > finish_right;< / div >
< div class = "line" > < a name = "l00332" > < / a > < span class = "lineno" > 332< / span >   }< / div >
< div class = "line" > < a name = "l00333" > < / a > < span class = "lineno" > 333< / span >   < / div >
< div class = "line" > < a name = "l00334" > < / a > < span class = "lineno" > 334< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > [< a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > perm< / a > [i1 - 1]] < = q) {< / div >
< div class = "line" > < a name = "l00335" > < / a > < span class = "lineno" > 335< / span >   i0 = i1 - 1;< / div >
< div class = "line" > < a name = "l00336" > < / a > < span class = "lineno" > 336< / span >   < span class = "keywordflow" > goto< / span > finish_left;< / div >
< div class = "line" > < a name = "l00337" > < / a > < span class = "lineno" > 337< / span >   }< / div >
< div class = "line" > < a name = "l00338" > < / a > < span class = "lineno" > 338< / span >   < / div >
< div class = "line" > < a name = "l00339" > < / a > < span class = "lineno" > 339< / span >   < span class = "keywordflow" > while< / span > (i0 + 1 < i1) {< / div >
< div class = "line" > < a name = "l00340" > < / a > < span class = "lineno" > 340< / span >   idx_t imed = (i0 + i1) / 2;< / div >
< div class = "line" > < a name = "l00341" > < / a > < span class = "lineno" > 341< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > [< a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > perm< / a > [imed]] < = q) i0 = imed;< / div >
< div class = "line" > < a name = "l00342" > < / a > < span class = "lineno" > 342< / span >   < span class = "keywordflow" > else< / span > i1 = imed;< / div >
< div class = "line" > < a name = "l00343" > < / a > < span class = "lineno" > 343< / span >   }< / div >
< div class = "line" > < a name = "l00344" > < / a > < span class = "lineno" > 344< / span >   < / div >
< div class = "line" > < a name = "l00345" > < / a > < span class = "lineno" > 345< / span >   < span class = "comment" > // query is between xb[perm[i0]] and xb[perm[i1]]< / span > < / div >
< div class = "line" > < a name = "l00346" > < / a > < span class = "lineno" > 346< / span >   < span class = "comment" > // expand to nearest neighs< / span > < / div >
< div class = "line" > < a name = "l00347" > < / a > < span class = "lineno" > 347< / span >   < / div >
< div class = "line" > < a name = "l00348" > < / a > < span class = "lineno" > 348< / span >   < span class = "keywordflow" > while< / span > (wp < k) {< / div >
< div class = "line" > < a name = "l00349" > < / a > < span class = "lineno" > 349< / span >   < span class = "keywordtype" > float< / span > xleft = < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > [< a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > perm< / a > [i0]];< / div >
< div class = "line" > < a name = "l00350" > < / a > < span class = "lineno" > 350< / span >   < span class = "keywordtype" > float< / span > xright = < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > [perm[i1]];< / div >
< div class = "line" > < a name = "l00351" > < / a > < span class = "lineno" > 351< / span >   < / div >
< div class = "line" > < a name = "l00352" > < / a > < span class = "lineno" > 352< / span >   < span class = "keywordflow" > if< / span > (q - xleft < xright - q) {< / div >
< div class = "line" > < a name = "l00353" > < / a > < span class = "lineno" > 353< / span >   D[wp] = q - xleft;< / div >
< div class = "line" > < a name = "l00354" > < / a > < span class = "lineno" > 354< / span >   I[wp] = perm[i0];< / div >
< div class = "line" > < a name = "l00355" > < / a > < span class = "lineno" > 355< / span >   i0--; wp++;< / div >
< div class = "line" > < a name = "l00356" > < / a > < span class = "lineno" > 356< / span >   < span class = "keywordflow" > if< / span > (i0 < 0) { < span class = "keywordflow" > goto< / span > finish_right; }< / div >
< div class = "line" > < a name = "l00357" > < / a > < span class = "lineno" > 357< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00358" > < / a > < span class = "lineno" > 358< / span >   D[wp] = xright - q;< / div >
< div class = "line" > < a name = "l00359" > < / a > < span class = "lineno" > 359< / span >   I[wp] = perm[i1];< / div >
< div class = "line" > < a name = "l00360" > < / a > < span class = "lineno" > 360< / span >   i1++; wp++;< / div >
< div class = "line" > < a name = "l00361" > < / a > < span class = "lineno" > 361< / span >   < span class = "keywordflow" > if< / span > (i1 > = < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ) { < span class = "keywordflow" > goto< / span > finish_left; }< / div >
< div class = "line" > < a name = "l00362" > < / a > < span class = "lineno" > 362< / span >   }< / div >
< div class = "line" > < a name = "l00363" > < / a > < span class = "lineno" > 363< / span >   }< / div >
< div class = "line" > < a name = "l00364" > < / a > < span class = "lineno" > 364< / span >   < span class = "keywordflow" > goto< / span > done;< / div >
< div class = "line" > < a name = "l00365" > < / a > < span class = "lineno" > 365< / span >   < / div >
< div class = "line" > < a name = "l00366" > < / a > < span class = "lineno" > 366< / span >   finish_right:< / div >
< div class = "line" > < a name = "l00367" > < / a > < span class = "lineno" > 367< / span >   < span class = "comment" > // grow to the right from i1< / span > < / div >
< div class = "line" > < a name = "l00368" > < / a > < span class = "lineno" > 368< / span >   < span class = "keywordflow" > while< / span > (wp < k) {< / div >
< div class = "line" > < a name = "l00369" > < / a > < span class = "lineno" > 369< / span >   < span class = "keywordflow" > if< / span > (i1 < < a class = "code" href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > ntotal< / a > ) {< / div >
< div class = "line" > < a name = "l00370" > < / a > < span class = "lineno" > 370< / span >   D[wp] = < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > [< a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > perm< / a > [i1]] - q;< / div >
< div class = "line" > < a name = "l00371" > < / a > < span class = "lineno" > 371< / span >   I[wp] = < a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > perm< / a > [i1];< / div >
< div class = "line" > < a name = "l00372" > < / a > < span class = "lineno" > 372< / span >   i1++;< / div >
< div class = "line" > < a name = "l00373" > < / a > < span class = "lineno" > 373< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00374" > < / a > < span class = "lineno" > 374< / span >   D[wp] = 1.0 / 0.0;< / div >
< div class = "line" > < a name = "l00375" > < / a > < span class = "lineno" > 375< / span >   I[wp] = -1;< / div >
< div class = "line" > < a name = "l00376" > < / a > < span class = "lineno" > 376< / span >   }< / div >
< div class = "line" > < a name = "l00377" > < / a > < span class = "lineno" > 377< / span >   wp++;< / div >
< div class = "line" > < a name = "l00378" > < / a > < span class = "lineno" > 378< / span >   }< / div >
< div class = "line" > < a name = "l00379" > < / a > < span class = "lineno" > 379< / span >   < span class = "keywordflow" > goto< / span > done;< / div >
< div class = "line" > < a name = "l00380" > < / a > < span class = "lineno" > 380< / span >   < / div >
< div class = "line" > < a name = "l00381" > < / a > < span class = "lineno" > 381< / span >   finish_left:< / div >
< div class = "line" > < a name = "l00382" > < / a > < span class = "lineno" > 382< / span >   < span class = "comment" > // grow to the left from i0< / span > < / div >
< div class = "line" > < a name = "l00383" > < / a > < span class = "lineno" > 383< / span >   < span class = "keywordflow" > while< / span > (wp < k) {< / div >
< div class = "line" > < a name = "l00384" > < / a > < span class = "lineno" > 384< / span >   < span class = "keywordflow" > if< / span > (i0 > = 0) {< / div >
< div class = "line" > < a name = "l00385" > < / a > < span class = "lineno" > 385< / span >   D[wp] = q - < a class = "code" href = "structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47" > xb< / a > [< a class = "code" href = "structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f" > perm< / a > [i0]];< / div >
< div class = "line" > < a name = "l00386" > < / a > < span class = "lineno" > 386< / span >   I[wp] = perm[i0];< / div >
< div class = "line" > < a name = "l00387" > < / a > < span class = "lineno" > 387< / span >   i0--;< / div >
< div class = "line" > < a name = "l00388" > < / a > < span class = "lineno" > 388< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00389" > < / a > < span class = "lineno" > 389< / span >   D[wp] = 1.0 / 0.0;< / div >
< div class = "line" > < a name = "l00390" > < / a > < span class = "lineno" > 390< / span >   I[wp] = -1;< / div >
< div class = "line" > < a name = "l00391" > < / a > < span class = "lineno" > 391< / span >   }< / div >
< div class = "line" > < a name = "l00392" > < / a > < span class = "lineno" > 392< / span >   wp++;< / div >
< div class = "line" > < a name = "l00393" > < / a > < span class = "lineno" > 393< / span >   }< / div >
< div class = "line" > < a name = "l00394" > < / a > < span class = "lineno" > 394< / span >   done: ;< / div >
< div class = "line" > < a name = "l00395" > < / a > < span class = "lineno" > 395< / span >   }< / div >
< div class = "line" > < a name = "l00396" > < / a > < span class = "lineno" > 396< / span >   < / div >
< div class = "line" > < a name = "l00397" > < / a > < span class = "lineno" > 397< / span >   }< / div >
2017-02-23 06:26:44 +08:00
< div class = "line" > < a name = "l00398" > < / a > < span class = "lineno" > 398< / span >   < / div >
2017-06-21 21:54:28 +08:00
< div class = "line" > < a name = "l00399" > < / a > < span class = "lineno" > 399< / span >   < / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l00400" > < / a > < span class = "lineno" > 400< / span >   < / div >
< div class = "line" > < a name = "l00401" > < / a > < span class = "lineno" > 401< / span >   } < span class = "comment" > // namespace faiss< / span > < / div >
< div class = "ttc" id = "namespacefaiss_html_a5eb1701e46123827966f2a56da893d1d" > < div class = "ttname" > < a href = "namespacefaiss.html#a5eb1701e46123827966f2a56da893d1d" > faiss::knn_L2sqr_base_shift< / a > < / div > < div class = "ttdeci" > void knn_L2sqr_base_shift(const float *x, const float *y, size_t d, size_t nx, size_t ny, float_maxheap_array_t *res, const float *base_shift)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "utils_8cpp_source.html#l00653" > utils.cpp:653< / a > < / div > < / 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#l00134" > IndexFlat.cpp:134< / 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#l00185" > IndexFlat.cpp:185< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1CMax_html" > < div class = "ttname" > < a href = "structfaiss_1_1CMax.html" > faiss::CMax< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Heap_8h_source.html#l00048" > Heap.h:48< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1Index_html_a849361f5f0ab0aba8d419c86f2594191" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a849361f5f0ab0aba8d419c86f2594191" > faiss::Index::reset< / a > < / div > < div class = "ttdeci" > virtual void reset()=0< / div > < div class = "ttdoc" > removes all elements from the database. < / div > < / div >
2018-12-20 00:48:35 +08:00
< 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#l00138" > IndexFlat.h:138< / a > < / div > < / div >
< 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#l00054" > AuxIndexStructures.h:54< / a > < / div > < / div >
< 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#l00078" > IndexFlat.h:78< / 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#l00043" > IndexFlat.cpp:43< / 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#l00037" > IndexFlat.cpp:37< / 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#l00285" > IndexFlat.cpp:285< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index_html_abf601502bdbfa02b9d7bcd7b3671b71d" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#abf601502bdbfa02b9d7bcd7b3671b71d" > faiss::Index::train< / a > < / div > < div class = "ttdeci" > virtual void train(idx_t n, const float *x)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8cpp_source.html#l00024" > Index.cpp:24< / 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#l00119" > IndexFlat.cpp:119< / 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#l00295" > IndexFlat.cpp:295< / 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#l00096" > IndexFlat.cpp:96< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1ScopeDeleter_html" > < div class = "ttname" > < a href = "structfaiss_1_1ScopeDeleter.html" > faiss::ScopeDeleter< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "FaissException_8h_source.html#l00039" > FaissException.h:39< / a > < / div > < / div >
2018-12-20 00:48:35 +08:00
< 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#l00220" > IndexFlat.cpp:220< / 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#l00108" > IndexFlat.h:108< / 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#l00105" > IndexFlat.h:105< / 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#l00109" > IndexFlat.h:109< / 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#l00066" > Index.h:66< / 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#l00059" > IndexFlat.cpp:59< / 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#l00172" > IndexFlat.cpp:172< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1Index_html_a1b5e9ac70adbce0897dd6c8276ad96f2" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a1b5e9ac70adbce0897dd6c8276ad96f2" > faiss::Index::add< / a > < / div > < div class = "ttdeci" > virtual void add(idx_t n, const float *x)=0< / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1HeapArray_html" > < div class = "ttname" > < a href = "structfaiss_1_1HeapArray.html" > faiss::HeapArray< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Heap_8h_source.html#l00350" > Heap.h:350< / a > < / div > < / div >
2018-12-20 00:48:35 +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#l00064" > Index.h:64< / a > < / div > < / div >
< div class = "ttc" id = "namespacefaiss_html_ab29d725b808df6f142b80f21aa45e507" > < div class = "ttname" > < a href = "namespacefaiss.html#ab29d725b808df6f142b80f21aa45e507" > faiss::range_search_inner_product< / a > < / div > < div class = "ttdeci" > void range_search_inner_product(const float *x, const float *y, size_t d, size_t nx, size_t ny, float radius, RangeSearchResult *res)< / div > < div class = "ttdoc" > same as range_search_L2sqr for the inner product similarity < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "utils_8cpp_source.html#l00947" > utils.cpp:947< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index_html_a6970683faa021b7a6f1a0865c0d4eccd" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd" > faiss::Index::ntotal< / a > < / div > < div class = "ttdeci" > idx_t ntotal< / div > < div class = "ttdoc" > total nb of indexed vectors < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00067" > Index.h:67< / a > < / div > < / div >
< div class = "ttc" id = "namespacefaiss_html_a880c7318971f866267a86945aaa61b17" > < div class = "ttname" > < a href = "namespacefaiss.html#a880c7318971f866267a86945aaa61b17" > faiss::knn_inner_product< / a > < / div > < div class = "ttdeci" > void knn_inner_product(const float *x, const float *y, size_t d, size_t nx, size_t ny, float_minheap_array_t *res)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "utils_8cpp_source.html#l00613" > utils.cpp:613< / 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#l00031" > IndexFlat.cpp:31< / 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#l00308" > IndexFlat.cpp:308< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
< div class = "ttc" id = "structfaiss_1_1Index_html_aced51b1ebc33c47ab3ae15ea906559a7" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#aced51b1ebc33c47ab3ae15ea906559a7" > faiss::Index::search< / a > < / div > < div class = "ttdeci" > virtual void search(idx_t n, const float *x, idx_t k, float *distances, idx_t *labels) const =0< / div > < / div >
2018-12-20 00:48:35 +08:00
< div class = "ttc" id = "namespacefaiss_html_a1faa7bd079c9b1addf3058ddf882a000" > < div class = "ttname" > < a href = "namespacefaiss.html#a1faa7bd079c9b1addf3058ddf882a000" > faiss::range_search_L2sqr< / a > < / div > < div class = "ttdeci" > void range_search_L2sqr(const float *x, const float *y, size_t d, size_t nx, size_t ny, float radius, RangeSearchResult *res)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "utils_8cpp_source.html#l00932" > utils.cpp:932< / a > < / div > < / div >
< 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#l00031" > AuxIndexStructures.h:31< / a > < / div > < / div >
< 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#l00074" > IndexFlat.cpp:74< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index_html_a8e18f641854b2bde83ecff0a2f9a6f4e" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e" > faiss::Index::metric_type< / a > < / div > < div class = "ttdeci" > MetricType metric_type< / div > < div class = "ttdoc" > type of metric this index uses for search < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00074" > Index.h:74< / 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#l00062" > Index.h:62< / a > < / div > < / div >
< div class = "ttc" id = "namespacefaiss_html_a2f803e3d3b07cfab63699c89de161237" > < div class = "ttname" > < a href = "namespacefaiss.html#a2f803e3d3b07cfab63699c89de161237" > faiss::knn_L2sqr< / a > < / div > < div class = "ttdeci" > void knn_L2sqr(const float *x, const float *y, size_t d, size_t nx, size_t ny, float_maxheap_array_t *res)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "utils_8cpp_source.html#l00633" > utils.cpp:633< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1Index_html_a6e92732617c4dbe364e7678dd8773a7f" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f" > faiss::Index::is_trained< / a > < / div > < div class = "ttdeci" > bool is_trained< / div > < div class = "ttdoc" > set if the Index does not require training, or if training is done already < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00071" > Index.h:71< / 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#l00024" > IndexFlat.h:24< / 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#l00113" > IndexFlat.h:113< / 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#l00302" > IndexFlat.cpp:302< / 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#l00140" > IndexFlat.h:140< / 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 version and a L2 search version. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00045" > Index.h:45< / a > < / div > < / div >
2017-06-21 21:54:28 +08:00
< div class = "ttc" id = "structfaiss_1_1CMin_html" > < div class = "ttname" > < a href = "structfaiss_1_1CMin.html" > faiss::CMin< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Heap_8h_source.html#l00053" > Heap.h:53< / a > < / div > < / div >
2018-12-20 00:48:35 +08:00
< 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#l00178" > IndexFlat.cpp:178< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
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