181 lines
20 KiB
HTML
181 lines
20 KiB
HTML
<!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/hoss/faiss/IndexIVFSpectralHash.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 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 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"> </span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark"> </span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark"> </span>Namespaces</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark"> </span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark"> </span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark"> </span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark"> </span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark"> </span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark"> </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/hoss/faiss/IndexIVFSpectralHash.h</div> </div>
|
|
</div><!--header-->
|
|
<div class="contents">
|
|
<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) Facebook, Inc. and its affiliates.</span></div>
|
|
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
|
|
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * This source code is licensed under the MIT license found in the</span></div>
|
|
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * LICENSE file in the root directory of this source tree.</span></div>
|
|
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> */</span></div>
|
|
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div>
|
|
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// -*- c++ -*-</span></div>
|
|
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div>
|
|
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#ifndef FAISS_INDEX_IVFSH_H</span></div>
|
|
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor"></span><span class="preprocessor">#define FAISS_INDEX_IVFSH_H</span></div>
|
|
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor"></span></div>
|
|
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div>
|
|
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <vector></span></div>
|
|
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div>
|
|
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "IndexIVF.h"</span></div>
|
|
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div>
|
|
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div>
|
|
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>faiss {</div>
|
|
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
|
|
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">struct </span>VectorTransform;</div>
|
|
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"></span></div>
|
|
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">/** Inverted list that stores binary codes of size nbit. Before the</span></div>
|
|
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * binary conversion, the dimension of the vectors is transformed from</span></div>
|
|
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * dim d into dim nbit by vt (a random rotation by default).</span></div>
|
|
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> *</span></div>
|
|
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * Each coordinate is subtracted from a value determined by</span></div>
|
|
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * threshold_type, and split into intervals of size period. Half of</span></div>
|
|
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * the interval is a 0 bit, the other half a 1.</span></div>
|
|
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> */</span></div>
|
|
<div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="structfaiss_1_1IndexIVFSpectralHash.html"> 31</a></span> <span class="keyword">struct </span><a class="code" href="structfaiss_1_1IndexIVFSpectralHash.html">IndexIVFSpectralHash</a>: <a class="code" href="structfaiss_1_1IndexIVF.html">IndexIVF</a> {</div>
|
|
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
|
|
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <a class="code" href="structfaiss_1_1VectorTransform.html">VectorTransform</a> *vt; <span class="comment">// transformation from d to nbit dim</span></div>
|
|
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordtype">bool</span> own_fields;</div>
|
|
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
|
|
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordtype">int</span> nbit;</div>
|
|
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordtype">float</span> period;</div>
|
|
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
|
|
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">enum</span> ThresholdType {</div>
|
|
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  Thresh_global,</div>
|
|
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  Thresh_centroid,</div>
|
|
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  Thresh_centroid_half,</div>
|
|
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  Thresh_median</div>
|
|
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  };</div>
|
|
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  ThresholdType threshold_type;</div>
|
|
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
|
|
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="comment">// size nlist * nbit or 0 if Thresh_global</span></div>
|
|
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  std::vector<float> trained;</div>
|
|
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div>
|
|
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <a class="code" href="structfaiss_1_1IndexIVFSpectralHash.html">IndexIVFSpectralHash</a> (<a class="code" href="structfaiss_1_1Index.html">Index</a> * <a class="code" href="structfaiss_1_1Level1Quantizer.html#a3cf99e2ee92b8558a066f821efab95d5">quantizer</a>, <span class="keywordtype">size_t</span> <a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>, <span class="keywordtype">size_t</span> <a class="code" href="structfaiss_1_1Level1Quantizer.html#a1c4fc9d874d9492ee0ea27a5be388fa7">nlist</a>,</div>
|
|
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">int</span> nbit, <span class="keywordtype">float</span> period);</div>
|
|
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
|
|
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <a class="code" href="structfaiss_1_1IndexIVFSpectralHash.html">IndexIVFSpectralHash</a> ();</div>
|
|
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div>
|
|
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIVFSpectralHash.html#a47c66c0610e9e7e42e584f5560791707">train_residual</a>(<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">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="l00056"></a><span class="lineno"> 56</span> </div>
|
|
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1IndexIVFSpectralHash.html#ab875c25aaf4fb2db0313b763c9294d64">encode_vectors</a>(<a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> n, <span class="keyword">const</span> <span class="keywordtype">float</span>* x,</div>
|
|
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">idx_t</a> *list_nos,</div>
|
|
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  uint8_t * codes) <span class="keyword">const override</span>;</div>
|
|
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
|
|
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <a class="code" href="structfaiss_1_1InvertedListScanner.html">InvertedListScanner</a> *<a class="code" href="structfaiss_1_1IndexIVFSpectralHash.html#a4d82b242a308783e53a350fc0064e062">get_InvertedListScanner</a> (<span class="keywordtype">bool</span> store_pairs)</div>
|
|
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">const override</span>;</div>
|
|
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
|
|
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  ~<a class="code" href="structfaiss_1_1IndexIVFSpectralHash.html">IndexIVFSpectralHash</a> () <span class="keyword">override</span>;</div>
|
|
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div>
|
|
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> };</div>
|
|
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
|
|
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div>
|
|
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
|
|
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
|
|
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> }; <span class="comment">// namespace faiss</span></div>
|
|
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div>
|
|
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div>
|
|
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor">#endif</span></div>
|
|
<div class="ttc" id="structfaiss_1_1IndexIVF_html"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html">faiss::IndexIVF</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00090">IndexIVF.h:90</a></div></div>
|
|
<div class="ttc" id="structfaiss_1_1IndexIVFSpectralHash_html"><div class="ttname"><a href="structfaiss_1_1IndexIVFSpectralHash.html">faiss::IndexIVFSpectralHash</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFSpectralHash_8h_source.html#l00031">IndexIVFSpectralHash.h:31</a></div></div>
|
|
<div class="ttc" id="structfaiss_1_1IndexIVFSpectralHash_html_a4d82b242a308783e53a350fc0064e062"><div class="ttname"><a href="structfaiss_1_1IndexIVFSpectralHash.html#a4d82b242a308783e53a350fc0064e062">faiss::IndexIVFSpectralHash::get_InvertedListScanner</a></div><div class="ttdeci">InvertedListScanner * get_InvertedListScanner(bool store_pairs) const override</div><div class="ttdoc">get a scanner for this index (store_pairs means ignore labels) </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFSpectralHash_8cpp_source.html#l00300">IndexIVFSpectralHash.cpp:300</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_1Index_html_ad3f0d3071f987baabbdd3da4500c87ea"><div class="ttname"><a href="structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea">faiss::Index::idx_t</a></div><div class="ttdeci">long idx_t</div><div class="ttdoc">all indices are this type </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00062">Index.h:62</a></div></div>
|
|
<div class="ttc" id="structfaiss_1_1IndexIVFSpectralHash_html_a47c66c0610e9e7e42e584f5560791707"><div class="ttname"><a href="structfaiss_1_1IndexIVFSpectralHash.html#a47c66c0610e9e7e42e584f5560791707">faiss::IndexIVFSpectralHash::train_residual</a></div><div class="ttdeci">void train_residual(idx_t n, const float *x) override</div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFSpectralHash_8cpp_source.html#l00066">IndexIVFSpectralHash.cpp:66</a></div></div>
|
|
<div class="ttc" id="structfaiss_1_1VectorTransform_html"><div class="ttname"><a href="structfaiss_1_1VectorTransform.html">faiss::VectorTransform</a></div><div class="ttdef"><b>Definition:</b> <a href="VectorTransform_8h_source.html#l00026">VectorTransform.h:26</a></div></div>
|
|
<div class="ttc" id="structfaiss_1_1InvertedListScanner_html"><div class="ttname"><a href="structfaiss_1_1InvertedListScanner.html">faiss::InvertedListScanner</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00272">IndexIVF.h:272</a></div></div>
|
|
<div class="ttc" id="structfaiss_1_1IndexIVFSpectralHash_html_ab875c25aaf4fb2db0313b763c9294d64"><div class="ttname"><a href="structfaiss_1_1IndexIVFSpectralHash.html#ab875c25aaf4fb2db0313b763c9294d64">faiss::IndexIVFSpectralHash::encode_vectors</a></div><div class="ttdeci">void encode_vectors(idx_t n, const float *x, const idx_t *list_nos, uint8_t *codes) const override</div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFSpectralHash_8cpp_source.html#l00161">IndexIVFSpectralHash.cpp:161</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_1Level1Quantizer_html_a3cf99e2ee92b8558a066f821efab95d5"><div class="ttname"><a href="structfaiss_1_1Level1Quantizer.html#a3cf99e2ee92b8558a066f821efab95d5">faiss::Level1Quantizer::quantizer</a></div><div class="ttdeci">Index * quantizer</div><div class="ttdoc">quantizer that maps vectors to inverted lists </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00032">IndexIVF.h:32</a></div></div>
|
|
<div class="ttc" id="structfaiss_1_1Level1Quantizer_html_a1c4fc9d874d9492ee0ea27a5be388fa7"><div class="ttname"><a href="structfaiss_1_1Level1Quantizer.html#a1c4fc9d874d9492ee0ea27a5be388fa7">faiss::Level1Quantizer::nlist</a></div><div class="ttdeci">size_t nlist</div><div class="ttdoc">number of possible key values </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00033">IndexIVF.h:33</a></div></div>
|
|
</div><!-- fragment --></div><!-- contents -->
|
|
<!-- start footer part -->
|
|
<hr class="footer"/><address class="footer"><small>
|
|
Generated by  <a href="http://www.doxygen.org/index.html">
|
|
<img class="footer" src="doxygen.png" alt="doxygen"/>
|
|
</a> 1.8.5
|
|
</small></address>
|
|
</body>
|
|
</html>
|