Skip to content

F
faiss
Switch branch/tag
Find file
BlameHistoryPermalink
  • matthijs's avatar
    sync with FB version. Added: · acb93857
    matthijs authored 
    - better selection of training sets for PQ and preprocessing
- GPU parameter object
- IndexIDMap fixed
- fixed redo bug in clustering
    acb93857
IndexFlat_8h_source.html 47.9 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.5"/>
<title>Faiss: /data/users/matthijs/github_faiss/faiss/IndexFlat.h Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
  $(document).ready(function() { searchBox.OnSelectItem(0); });
</script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  <td style="padding-left: 0.5em;">
   <div id="projectname">Faiss
   </div>
  </td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.5 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
  <div id="navrow1" class="tabs">
    <ul class="tablist">
      <li><a href="index.html"><span>Main&#160;Page</span></a></li>
      <li><a href="namespaces.html"><span>Namespaces</span></a></li>
      <li><a href="annotated.html"><span>Classes</span></a></li>
      <li class="current"><a href="files.html"><span>Files</span></a></li>
      <li>
        <div id="MSearchBox" class="MSearchBoxInactive">
        <span class="left">
          <img id="MSearchSelect" src="search/mag_sel.png"
               onmouseover="return searchBox.OnSearchSelectShow()"
               onmouseout="return searchBox.OnSearchSelectHide()"
               alt=""/>
          <input type="text" id="MSearchField" value="Search" accesskey="S"
               onfocus="searchBox.OnSearchFieldFocus(true)" 
               onblur="searchBox.OnSearchFieldFocus(false)" 
               onkeyup="searchBox.OnSearchFieldChange(event)"/>
          </span><span class="right">
            <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
          </span>
        </div>
      </li>
    </ul>
  </div>
  <div id="navrow2" class="tabs2">
    <ul class="tablist">
      <li><a href="files.html"><span>File&#160;List</span></a></li>
    </ul>
  </div>
</div><!-- top -->
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
     onmouseover="return searchBox.OnSearchSelectShow()"
     onmouseout="return searchBox.OnSearchSelectHide()"
     onkeydown="return searchBox.OnSearchSelectKey(event)">
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark">&#160;</span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark">&#160;</span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark">&#160;</span>Namespaces</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark">&#160;</span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark">&#160;</span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark">&#160;</span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark">&#160;</span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark">&#160;</span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark">&#160;</span>Friends</a></div>

<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0" 
        name="MSearchResults" id="MSearchResults">
</iframe>
</div>

<div class="header">
  <div class="headertitle">
<div class="title">/data/users/matthijs/github_faiss/faiss/IndexFlat.h</div>  </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">/**</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (c) 2015-present, Facebook, Inc.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * This source code is licensed under the CC-by-NC license found in the</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * LICENSE file in the root directory of this source tree.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;</div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">// Copyright 2004-present Facebook. All Rights Reserved</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">// -*- c++ -*-</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;</div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#ifndef INDEX_FLAT_H</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define INDEX_FLAT_H</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;</div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#include &quot;Index.h&quot;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;</div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="keyword">namespace </span>faiss {</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment">/** Index that stores the full vectors and performs exhaustive search */</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexFlat.html">   24</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structfaiss_1_1IndexFlat.html">IndexFlat</a>: <a class="code" href="structfaiss_1_1Index.html">Index</a> {<span class="comment"></span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment">    /// database vectors, size ntotal * d</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47">   26</a></span>&#160;<span class="comment"></span>    std::vector&lt;float&gt; <a class="code" href="structfaiss_1_1IndexFlat.html#a9001de47890fe5d2eced9551d3613d47">xb</a>;</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;    <span class="keyword">explicit</span> <a class="code" href="structfaiss_1_1IndexFlat.html">IndexFlat</a> (<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>, <a class="code" href="namespacefaiss.html#afd12191c638da74760ff397cf319752c">MetricType</a> metric = METRIC_INNER_PRODUCT);</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> set_typename() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexFlat.html#a406f028c702edec72477eacc5733f59c">add</a> (<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n, <span class="keyword">const</span> <span class="keywordtype">float</span> *x) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexFlat.html#ab63dc34ef5d33f98f94aa0ade7c7324f">reset</a>() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexFlat.html#a85510d70f4675197df9988651e4692c9">search</a> (</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n,</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">float</span> *x,</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> k,</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;            <span class="keywordtype">float</span> *distances,</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> *labels) <span class="keyword">const override</span>;</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexFlat.html#ac56b7ed90ab65fab9c586a1e56006d12">range_search</a> (</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n,</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">float</span> *x,</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;            <span class="keywordtype">float</span> radius,</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;            <a class="code" href="structfaiss_1_1RangeSearchResult.html">RangeSearchResult</a> *result) <span class="keyword">const override</span>;</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexFlat.html#ae4b33315752b62cff1626f9f967167b1">reconstruct</a> (<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> key, <span class="keywordtype">float</span> * recons)</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;        <span class="keyword">const override</span>;</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="comment">    /** compute distance with a subset of vectors</span></div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="comment">     *</span></div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="comment">     * @param x       query vectors, size n * d</span></div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="comment">     * @param labels  indices of the vectors that should be compared</span></div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="comment">     *                for each query vector, size n * k</span></div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;<span class="comment">     * @param distances</span></div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="comment">     *                corresponding output distances, size n * k</span></div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="comment">     */</span></div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexFlat.html#a14b51786e7f98be1954eef35d02813a7">compute_distance_subset</a> (</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n,</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">float</span> *x,</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> k,</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;            <span class="keywordtype">float</span> *distances,</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;            <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="l00069"></a><span class="lineno">   69</span>&#160;</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    <a class="code" href="structfaiss_1_1IndexFlat.html">IndexFlat</a> () {}</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;};</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;</div>
<div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexFlatIP.html">   75</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structfaiss_1_1IndexFlatIP.html">IndexFlatIP</a>:<a class="code" href="structfaiss_1_1IndexFlat.html">IndexFlat</a> {</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    <span class="keyword">explicit</span> <a class="code" href="structfaiss_1_1IndexFlatIP.html">IndexFlatIP</a> (<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>): <a class="code" href="structfaiss_1_1IndexFlat.html">IndexFlat</a> (d, METRIC_INNER_PRODUCT) {}</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    <a class="code" href="structfaiss_1_1IndexFlatIP.html">IndexFlatIP</a> () {}</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;};</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;</div>
<div class="line"><a name="l00081"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexFlatL2.html">   81</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structfaiss_1_1IndexFlatL2.html">IndexFlatL2</a>:<a class="code" href="structfaiss_1_1IndexFlat.html">IndexFlat</a> {</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    <span class="keyword">explicit</span> <a class="code" href="structfaiss_1_1IndexFlatL2.html">IndexFlatL2</a> (<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>): <a class="code" href="structfaiss_1_1IndexFlat.html">IndexFlat</a> (d, METRIC_L2) {}</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    <a class="code" href="structfaiss_1_1IndexFlatL2.html">IndexFlatL2</a> () {}</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;};</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;<span class="comment">// same as an IndexFlatL2 but a value is subtracted from each distance</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexFlatL2BaseShift.html">   88</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structfaiss_1_1IndexFlatL2BaseShift.html">IndexFlatL2BaseShift</a>: <a class="code" href="structfaiss_1_1IndexFlatL2.html">IndexFlatL2</a> {</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    std::vector&lt;float&gt; shift;</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    <a class="code" href="structfaiss_1_1IndexFlatL2BaseShift.html">IndexFlatL2BaseShift</a> (<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>, <span class="keywordtype">size_t</span> nshift, <span class="keyword">const</span> <span class="keywordtype">float</span> *shift);</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexFlatL2BaseShift.html#a16e9bf1aec9d18b3ebbe78fea6bfecc0">search</a> (</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n,</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">float</span> *x,</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> k,</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;            <span class="keywordtype">float</span> *distances,</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> *labels) <span class="keyword">const override</span>;</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;};</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="comment">/** Index that queries in a base_index (a fast one) and refines the</span></div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;<span class="comment"> *  results with an exact search, hopefully improving the results.</span></div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexRefineFlat.html">  105</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structfaiss_1_1IndexRefineFlat.html">IndexRefineFlat</a>: <a class="code" href="structfaiss_1_1Index.html">Index</a> {</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;<span class="comment">    /// storage for full vectors</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexRefineFlat.html#aab99f32713ece942ccefccf306292ca0">  108</a></span>&#160;<span class="comment"></span>    <a class="code" href="structfaiss_1_1IndexFlat.html">IndexFlat</a> <a class="code" href="structfaiss_1_1IndexRefineFlat.html#aab99f32713ece942ccefccf306292ca0">refine_index</a>;</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;<span class="comment">    /// faster index to pre-select the vectors that should be filtered</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0">  111</a></span>&#160;<span class="comment"></span>    <a class="code" href="structfaiss_1_1Index.html">Index</a> *<a class="code" href="structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0">base_index</a>;</div>
<div class="line"><a name="l00112"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexRefineFlat.html#aaf0f6a094de0e9409effa81bedb9c7e2">  112</a></span>&#160;    <span class="keywordtype">bool</span> <a class="code" href="structfaiss_1_1IndexRefineFlat.html#aaf0f6a094de0e9409effa81bedb9c7e2">own_fields</a>;  <span class="comment">///&lt; should the base index be deallocated?</span></div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;<span class="comment"></span><span class="comment"></span></div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;<span class="comment">    /// factor between k requested in search and the k requested from</span></div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;<span class="comment">    /// the base_index (should be &gt;= 1)</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexRefineFlat.html#a7383fabb28db5b0df45ca4ea81f7acd4">  116</a></span>&#160;<span class="comment"></span>    <span class="keywordtype">float</span> <a class="code" href="structfaiss_1_1IndexRefineFlat.html#a7383fabb28db5b0df45ca4ea81f7acd4">k_factor</a>;</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;    <span class="keyword">explicit</span> <a class="code" href="structfaiss_1_1IndexRefineFlat.html">IndexRefineFlat</a> (<a class="code" href="structfaiss_1_1Index.html">Index</a> *<a class="code" href="structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0">base_index</a>);</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;    <a class="code" href="structfaiss_1_1IndexRefineFlat.html">IndexRefineFlat</a> ();</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexRefineFlat.html#a79c4c9b9ffabc4460ef4def6eb962e68">train</a> (<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n, <span class="keyword">const</span> <span class="keywordtype">float</span> *x) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexRefineFlat.html#a10d5009c838e8653fd767ca48a3e6fcc">add</a> (<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n, <span class="keyword">const</span> <span class="keywordtype">float</span> *x) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexRefineFlat.html#ac3efe902315768afe83fa2b8ea5dc591">reset</a>() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexRefineFlat.html#ad04444de1e2c26c463cc52f3c076dd41">search</a> (</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n,</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">float</span> *x,</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> k,</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;            <span class="keywordtype">float</span> *distances,</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> *labels) <span class="keyword">const override</span>;</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> set_typename () <span class="keyword">override</span>;</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;    <span class="keyword">virtual</span> ~<a class="code" href="structfaiss_1_1IndexRefineFlat.html">IndexRefineFlat</a> ();</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;};</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;<span class="comment">/// optimized version for 1D &quot;vectors&quot;</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexFlat1D.html">  142</a></span>&#160;<span class="comment"></span><span class="keyword">struct </span><a class="code" href="structfaiss_1_1IndexFlat1D.html">IndexFlat1D</a>:<a class="code" href="structfaiss_1_1IndexFlatL2.html">IndexFlatL2</a> {</div>
<div class="line"><a name="l00143"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexFlat1D.html#a8b025a468b088a343cf8079006de45e2">  143</a></span>&#160;    <span class="keywordtype">bool</span> <a class="code" href="structfaiss_1_1IndexFlat1D.html#a8b025a468b088a343cf8079006de45e2">continuous_update</a>; <span class="comment">///&lt; is the permutation updated continuously?</span></div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00145"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f">  145</a></span>&#160;    std::vector&lt;idx_t&gt; <a class="code" href="structfaiss_1_1IndexFlat1D.html#a3442f0d86a14108534f99eea0b7d4d3f">perm</a>; <span class="comment">///&lt; sorted database indices</span></div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    <span class="keyword">explicit</span> <a class="code" href="structfaiss_1_1IndexFlat1D.html">IndexFlat1D</a> (<span class="keywordtype">bool</span> <a class="code" href="structfaiss_1_1IndexFlat1D.html#a8b025a468b088a343cf8079006de45e2">continuous_update</a>=<span class="keyword">true</span>);</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;<span class="comment">    /// if not continuous_update, call this between the last add and</span></div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;<span class="comment">    /// the first search</span></div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;<span class="comment"></span>    <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexFlat1D.html#ac7466c6c9b1e9e81ea19b846ddb8209e">update_permutation</a> ();</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexFlat1D.html#a5dc39280262484ecadda5e11162c2457">add</a> (<a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n, <span class="keyword">const</span> <span class="keywordtype">float</span> *x) <span class="keyword">override</span>;</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;    <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexFlat1D.html#aa205c4ffa6cbd50f49ef9cb6cc050000">reset</a>() <span class="keyword">override</span>;</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;<span class="comment">    /// Warn: the distances returned are L1 not L2</span></div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;<span class="comment"></span>    <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexFlat1D.html#a65736f2900865cd156faba4fcd260d05">search</a> (</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> n,</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">float</span> *x,</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> k,</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;            <span class="keywordtype">float</span> *distances,</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;            <a class="code" href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">idx_t</a> *labels) <span class="keyword">const override</span>;</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;};</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;}</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="ttc" id="structfaiss_1_1IndexFlatL2BaseShift_html_a16e9bf1aec9d18b3ebbe78fea6bfecc0"><div class="ttname"><a href="structfaiss_1_1IndexFlatL2BaseShift.html#a16e9bf1aec9d18b3ebbe78fea6bfecc0">faiss::IndexFlatL2BaseShift::search</a></div><div class="ttdeci">virtual 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#l00124">IndexFlat.cpp:124</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexFlat_html"><div class="ttname"><a href="structfaiss_1_1IndexFlat.html">faiss::IndexFlat</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8h_source.html#l00024">IndexFlat.h:24</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">virtual void reset() override</div><div class="ttdoc">removes all elements from the database. </div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8cpp_source.html#l00184">IndexFlat.cpp:184</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexFlat1D_html_a8b025a468b088a343cf8079006de45e2"><div class="ttname"><a href="structfaiss_1_1IndexFlat1D.html#a8b025a468b088a343cf8079006de45e2">faiss::IndexFlat1D::continuous_update</a></div><div class="ttdeci">bool continuous_update</div><div class="ttdoc">is the permutation updated continuously? </div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8h_source.html#l00143">IndexFlat.h:143</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexFlat1D_html"><div class="ttname"><a href="structfaiss_1_1IndexFlat1D.html">faiss::IndexFlat1D</a></div><div class="ttdoc">optimized version for 1D &amp;quot;vectors&amp;quot; </div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8h_source.html#l00142">IndexFlat.h:142</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#l00081">IndexFlat.h:81</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">virtual 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#l00054">IndexFlat.cpp:54</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">virtual 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#l00048">IndexFlat.cpp:48</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#l00283">IndexFlat.cpp:283</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">virtual void reconstruct(idx_t key, float *recons) const override</div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8cpp_source.html#l00109">IndexFlat.cpp:109</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">virtual void add(idx_t n, const float *x) override</div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8cpp_source.html#l00293">IndexFlat.cpp:293</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexFlatIP_html"><div class="ttname"><a href="structfaiss_1_1IndexFlatIP.html">faiss::IndexFlatIP</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8h_source.html#l00075">IndexFlat.h:75</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexRefineFlat_html_ad04444de1e2c26c463cc52f3c076dd41"><div class="ttname"><a href="structfaiss_1_1IndexRefineFlat.html#ad04444de1e2c26c463cc52f3c076dd41">faiss::IndexRefineFlat::search</a></div><div class="ttdeci">virtual void search(idx_t n, const float *x, idx_t k, float *distances, idx_t *labels) const override</div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8cpp_source.html#l00219">IndexFlat.cpp:219</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexRefineFlat_html_a4acc0b3a8c33e5dd8851448ac162dfd0"><div class="ttname"><a href="structfaiss_1_1IndexRefineFlat.html#a4acc0b3a8c33e5dd8851448ac162dfd0">faiss::IndexRefineFlat::base_index</a></div><div class="ttdeci">Index * base_index</div><div class="ttdoc">faster index to pre-select the vectors that should be filtered </div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8h_source.html#l00111">IndexFlat.h:111</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexRefineFlat_html"><div class="ttname"><a href="structfaiss_1_1IndexRefineFlat.html">faiss::IndexRefineFlat</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8h_source.html#l00105">IndexFlat.h:105</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#l00108">IndexFlat.h:108</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#l00112">IndexFlat.h:112</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">virtual 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#l00070">IndexFlat.cpp:70</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">virtual void train(idx_t n, const float *x) override</div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8cpp_source.html#l00171">IndexFlat.cpp:171</a></div></div>
<div class="ttc" id="structfaiss_1_1Index_html_a040c6aed1f224f3ea7bf58eebc0c31a4"><div class="ttname"><a href="structfaiss_1_1Index.html#a040c6aed1f224f3ea7bf58eebc0c31a4">faiss::Index::idx_t</a></div><div class="ttdeci">long idx_t</div><div class="ttdoc">all indices are this type </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00064">Index.h:64</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">virtual void add(idx_t n, const float *x) override</div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8cpp_source.html#l00041">IndexFlat.cpp:41</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">virtual 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#l00306">IndexFlat.cpp:306</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#l00035">AuxIndexStructures.h:35</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#l00085">IndexFlat.cpp:85</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexFlatL2BaseShift_html"><div class="ttname"><a href="structfaiss_1_1IndexFlatL2BaseShift.html">faiss::IndexFlatL2BaseShift</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8h_source.html#l00088">IndexFlat.h:88</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#l00061">Index.h:61</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&lt; float &gt; xb</div><div class="ttdoc">database vectors, size ntotal * d </div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8h_source.html#l00026">IndexFlat.h:26</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#l00116">IndexFlat.h:116</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">virtual 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#l00300">IndexFlat.cpp:300</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&lt; idx_t &gt; perm</div><div class="ttdoc">sorted database indices </div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8h_source.html#l00145">IndexFlat.h:145</a></div></div>
<div class="ttc" id="namespacefaiss_html_afd12191c638da74760ff397cf319752c"><div class="ttname"><a href="namespacefaiss.html#afd12191c638da74760ff397cf319752c">faiss::MetricType</a></div><div class="ttdeci">MetricType</div><div class="ttdoc">Some algorithms support both an inner product vetsion and a L2 search version. </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00044">Index.h:44</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexRefineFlat_html_a10d5009c838e8653fd767ca48a3e6fcc"><div class="ttname"><a href="structfaiss_1_1IndexRefineFlat.html#a10d5009c838e8653fd767ca48a3e6fcc">faiss::IndexRefineFlat::add</a></div><div class="ttdeci">virtual void add(idx_t n, const float *x) override</div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8cpp_source.html#l00177">IndexFlat.cpp:177</a></div></div>
</div><!-- fragment --></div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated by &#160;<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.5
</small></address>
</body>
</html>