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| <li class="navelem"><a class="el" href="dir_e96b5dfe115c13cdeb36484e37aec42e.html">theta</a></li><li class="navelem"><a class="el" href="dir_3f8742d40c9573c3b90638004faf146b.html">include</a></li> </ul> |
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| <div class="headertitle"><div class="title">theta_jaccard_similarity_base.hpp</div></div> |
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| <div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div> |
| <div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div> |
| <div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div> |
| <div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * distributed with this work for additional information</span></div> |
| <div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div> |
| <div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div> |
| <div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * "License"); you may not use this file except in compliance</span></div> |
| <div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * with the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div> |
| <div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * software distributed under the License is distributed on an</span></div> |
| <div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div> |
| <div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> * KIND, either express or implied. See the License for the</span></div> |
| <div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * specific language governing permissions and limitations</span></div> |
| <div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> * under the License.</span></div> |
| <div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> */</span></div> |
| <div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div> |
| <div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#ifndef THETA_JACCARD_SIMILARITY_BASE_HPP_</span></div> |
| <div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#define THETA_JACCARD_SIMILARITY_BASE_HPP_</span></div> |
| <div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div> |
| <div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include <memory></span></div> |
| <div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include <array></span></div> |
| <div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div> |
| <div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include "theta_constants.hpp"</span></div> |
| <div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include "bounds_on_ratios_in_theta_sketched_sets.hpp"</span></div> |
| <div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include "ceiling_power_of_2.hpp"</span></div> |
| <div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include "common_defs.hpp"</span></div> |
| <div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div> |
| <div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacedatasketches.html">datasketches</a> {</div> |
| <div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div> |
| <div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="keyword">template</span><<span class="keyword">typename</span> Union, <span class="keyword">typename</span> Intersection, <span class="keyword">typename</span> ExtractKey></div> |
| <div class="foldopen" id="foldopen00035" data-start="{" data-end="};"> |
| <div class="line"><a id="l00035" name="l00035"></a><span class="lineno"><a class="line" href="classdatasketches_1_1jaccard__similarity__base.html"> 35</a></span><span class="keyword">class </span><a class="code hl_class" href="classdatasketches_1_1jaccard__similarity__base.html">jaccard_similarity_base</a> {</div> |
| <div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="keyword">public</span>:</div> |
| <div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div> |
| <div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">template</span><<span class="keyword">typename</span> SketchA, <span class="keyword">typename</span> SketchB></div> |
| <div class="foldopen" id="foldopen00055" data-start="{" data-end="}"> |
| <div class="line"><a id="l00055" name="l00055"></a><span class="lineno"><a class="line" href="classdatasketches_1_1jaccard__similarity__base.html#a8a2af62ca89e1120a6019ee10cd90e04"> 55</a></span> <span class="keyword">static</span> std::array<double, 3> <a class="code hl_function" href="classdatasketches_1_1jaccard__similarity__base.html#a8a2af62ca89e1120a6019ee10cd90e04">jaccard</a>(<span class="keyword">const</span> SketchA& sketch_a, <span class="keyword">const</span> SketchB& sketch_b, uint64_t seed = DEFAULT_SEED) {</div> |
| <div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keywordflow">if</span> (<span class="keyword">reinterpret_cast<</span><span class="keyword">const </span><span class="keywordtype">void</span>*<span class="keyword">></span>(&sketch_a) == <span class="keyword">reinterpret_cast<</span><span class="keyword">const </span><span class="keywordtype">void</span>*<span class="keyword">></span>(&sketch_b)) <span class="keywordflow">return</span> {1, 1, 1};</div> |
| <div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordflow">if</span> (sketch_a.is_empty() && sketch_b.is_empty()) <span class="keywordflow">return</span> {1, 1, 1};</div> |
| <div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keywordflow">if</span> (sketch_a.is_empty() || sketch_b.is_empty()) <span class="keywordflow">return</span> {0, 0, 0};</div> |
| <div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> </div> |
| <div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">auto</span> union_ab = compute_union(sketch_a, sketch_b, seed);</div> |
| <div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keywordflow">if</span> (identical_sets(sketch_a, sketch_b, union_ab)) <span class="keywordflow">return</span> {1, 1, 1};</div> |
| <div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> </div> |
| <div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="comment">// intersection</span></div> |
| <div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> Intersection i(seed);</div> |
| <div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> i.update(sketch_a);</div> |
| <div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> i.update(sketch_b);</div> |
| <div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> i.update(union_ab); <span class="comment">// ensures that intersection is a subset of the union</span></div> |
| <div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keyword">auto</span> inter_abu = i.get_result(<span class="keyword">false</span>);</div> |
| <div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> </div> |
| <div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="keywordflow">return</span> {</div> |
| <div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <a class="code hl_function" href="classdatasketches_1_1bounds__on__ratios__in__theta__sketched__sets.html#afca4842e0e5f98bf5eba713429b9e388">bounds_on_ratios_in_theta_sketched_sets<ExtractKey>::lower_bound_for_b_over_a</a>(union_ab, inter_abu),</div> |
| <div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <a class="code hl_function" href="classdatasketches_1_1bounds__on__ratios__in__theta__sketched__sets.html#aaf6f3e30b2d0b2f01f2f2196ac97a203">bounds_on_ratios_in_theta_sketched_sets<ExtractKey>::estimate_of_b_over_a</a>(union_ab, inter_abu),</div> |
| <div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <a class="code hl_function" href="classdatasketches_1_1bounds__on__ratios__in__theta__sketched__sets.html#ad293e15d58608067e1e0d6664802bfd2">bounds_on_ratios_in_theta_sketched_sets<ExtractKey>::upper_bound_for_b_over_a</a>(union_ab, inter_abu)</div> |
| <div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> };</div> |
| <div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> }</div> |
| </div> |
| <div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> </div> |
| <div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keyword">template</span><<span class="keyword">typename</span> SketchA, <span class="keyword">typename</span> SketchB></div> |
| <div class="foldopen" id="foldopen00085" data-start="{" data-end="}"> |
| <div class="line"><a id="l00085" name="l00085"></a><span class="lineno"><a class="line" href="classdatasketches_1_1jaccard__similarity__base.html#a18c18c5c7351430540000bf360f523fc"> 85</a></span> <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classdatasketches_1_1jaccard__similarity__base.html#a18c18c5c7351430540000bf360f523fc">exactly_equal</a>(<span class="keyword">const</span> SketchA& sketch_a, <span class="keyword">const</span> SketchB& sketch_b, uint64_t seed = DEFAULT_SEED) {</div> |
| <div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keywordflow">if</span> (<span class="keyword">reinterpret_cast<</span><span class="keyword">const </span><span class="keywordtype">void</span>*<span class="keyword">></span>(&sketch_a) == <span class="keyword">reinterpret_cast<</span><span class="keyword">const </span><span class="keywordtype">void</span>*<span class="keyword">></span>(&sketch_b)) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="keywordflow">if</span> (sketch_a.is_empty() && sketch_b.is_empty()) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keywordflow">if</span> (sketch_a.is_empty() || sketch_b.is_empty()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> </div> |
| <div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keyword">auto</span> union_ab = compute_union(sketch_a, sketch_b, seed);</div> |
| <div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordflow">if</span> (identical_sets(sketch_a, sketch_b, union_ab)) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> }</div> |
| </div> |
| <div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> </div> |
| <div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="keyword">template</span><<span class="keyword">typename</span> SketchA, <span class="keyword">typename</span> SketchB></div> |
| <div class="foldopen" id="foldopen00110" data-start="{" data-end="}"> |
| <div class="line"><a id="l00110" name="l00110"></a><span class="lineno"><a class="line" href="classdatasketches_1_1jaccard__similarity__base.html#a919ce3dd7d15658fe67eb359368e9f07"> 110</a></span> <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classdatasketches_1_1jaccard__similarity__base.html#a919ce3dd7d15658fe67eb359368e9f07">similarity_test</a>(<span class="keyword">const</span> SketchA& actual, <span class="keyword">const</span> SketchB& expected, <span class="keywordtype">double</span> threshold, uint64_t seed = DEFAULT_SEED) {</div> |
| <div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="keyword">auto</span> jc = <a class="code hl_function" href="classdatasketches_1_1jaccard__similarity__base.html#a8a2af62ca89e1120a6019ee10cd90e04">jaccard</a>(actual, expected, seed);</div> |
| <div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordflow">return</span> jc[0] >= threshold;</div> |
| <div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> }</div> |
| </div> |
| <div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> </div> |
| <div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="keyword">template</span><<span class="keyword">typename</span> SketchA, <span class="keyword">typename</span> SketchB></div> |
| <div class="foldopen" id="foldopen00130" data-start="{" data-end="}"> |
| <div class="line"><a id="l00130" name="l00130"></a><span class="lineno"><a class="line" href="classdatasketches_1_1jaccard__similarity__base.html#a5bc3426c328c625eb345a5c00c755004"> 130</a></span> <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classdatasketches_1_1jaccard__similarity__base.html#a5bc3426c328c625eb345a5c00c755004">dissimilarity_test</a>(<span class="keyword">const</span> SketchA& actual, <span class="keyword">const</span> SketchB& expected, <span class="keywordtype">double</span> threshold, uint64_t seed = DEFAULT_SEED) {</div> |
| <div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keyword">auto</span> jc = <a class="code hl_function" href="classdatasketches_1_1jaccard__similarity__base.html#a8a2af62ca89e1120a6019ee10cd90e04">jaccard</a>(actual, expected, seed);</div> |
| <div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">return</span> jc[2] <= threshold;</div> |
| <div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> }</div> |
| </div> |
| <div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> </div> |
| <div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span><span class="keyword">private</span>:</div> |
| <div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> </div> |
| <div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keyword">template</span><<span class="keyword">typename</span> SketchA, <span class="keyword">typename</span> SketchB></div> |
| <div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keyword">static</span> <span class="keyword">typename</span> Union::CompactSketch compute_union(<span class="keyword">const</span> SketchA& sketch_a, <span class="keyword">const</span> SketchB& sketch_b, uint64_t seed) {</div> |
| <div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keyword">const</span> <span class="keyword">auto</span> count_a = sketch_a.get_num_retained();</div> |
| <div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="keyword">const</span> <span class="keyword">auto</span> count_b = sketch_b.get_num_retained();</div> |
| <div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keyword">const</span> uint8_t lg_k = std::min(std::max(log2(ceiling_power_of_2(count_a + count_b)), <a class="code hl_variable" href="namespacedatasketches_1_1theta__constants.html#a80c5dfefaf69318c0894ec34c34d0987">theta_constants::MIN_LG_K</a>), <a class="code hl_variable" href="namespacedatasketches_1_1theta__constants.html#ad15c7a6b3af91806e0a9743d27943d49">theta_constants::MAX_LG_K</a>);</div> |
| <div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keyword">auto</span> u = <span class="keyword">typename</span> Union::builder().set_lg_k(lg_k).set_seed(seed).build();</div> |
| <div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> u.update(sketch_a);</div> |
| <div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> u.update(sketch_b);</div> |
| <div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <span class="keywordflow">return</span> u.get_result(<span class="keyword">false</span>);</div> |
| <div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> }</div> |
| <div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> </div> |
| <div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keyword">template</span><<span class="keyword">typename</span> SketchA, <span class="keyword">typename</span> SketchB, <span class="keyword">typename</span> UnionAB></div> |
| <div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> identical_sets(<span class="keyword">const</span> SketchA& sketch_a, <span class="keyword">const</span> SketchB& sketch_b, <span class="keyword">const</span> UnionAB& union_ab) {</div> |
| <div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keywordflow">if</span> (union_ab.get_num_retained() == sketch_a.get_num_retained() &&</div> |
| <div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> union_ab.get_num_retained() == sketch_b.get_num_retained() &&</div> |
| <div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> union_ab.get_theta64() == sketch_a.get_theta64() &&</div> |
| <div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> union_ab.get_theta64() == sketch_b.get_theta64()) <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> }</div> |
| <div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> </div> |
| <div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span>};</div> |
| </div> |
| <div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> </div> |
| <div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span>} <span class="comment">/* namespace datasketches */</span></div> |
| <div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> </div> |
| <div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span><span class="preprocessor"># endif</span></div> |
| <div class="ttc" id="aclassdatasketches_1_1bounds__on__ratios__in__theta__sketched__sets_html_aaf6f3e30b2d0b2f01f2f2196ac97a203"><div class="ttname"><a href="classdatasketches_1_1bounds__on__ratios__in__theta__sketched__sets.html#aaf6f3e30b2d0b2f01f2f2196ac97a203">datasketches::bounds_on_ratios_in_theta_sketched_sets::estimate_of_b_over_a</a></div><div class="ttdeci">static double estimate_of_b_over_a(const SketchA &sketch_a, const SketchB &sketch_b)</div><div class="ttdoc">Gets the estimate for B over A.</div><div class="ttdef"><b>Definition</b> bounds_on_ratios_in_theta_sketched_sets.hpp:103</div></div> |
| <div class="ttc" id="aclassdatasketches_1_1bounds__on__ratios__in__theta__sketched__sets_html_ad293e15d58608067e1e0d6664802bfd2"><div class="ttname"><a href="classdatasketches_1_1bounds__on__ratios__in__theta__sketched__sets.html#ad293e15d58608067e1e0d6664802bfd2">datasketches::bounds_on_ratios_in_theta_sketched_sets::upper_bound_for_b_over_a</a></div><div class="ttdeci">static double upper_bound_for_b_over_a(const SketchA &sketch_a, const SketchB &sketch_b)</div><div class="ttdoc">Gets the approximate upper bound for B over A based on a 95% confidence interval.</div><div class="ttdef"><b>Definition</b> bounds_on_ratios_in_theta_sketched_sets.hpp:81</div></div> |
| <div class="ttc" id="aclassdatasketches_1_1bounds__on__ratios__in__theta__sketched__sets_html_afca4842e0e5f98bf5eba713429b9e388"><div class="ttname"><a href="classdatasketches_1_1bounds__on__ratios__in__theta__sketched__sets.html#afca4842e0e5f98bf5eba713429b9e388">datasketches::bounds_on_ratios_in_theta_sketched_sets::lower_bound_for_b_over_a</a></div><div class="ttdeci">static double lower_bound_for_b_over_a(const SketchA &sketch_a, const SketchB &sketch_b)</div><div class="ttdoc">Gets the approximate lower bound for B over A based on a 95% confidence interval.</div><div class="ttdef"><b>Definition</b> bounds_on_ratios_in_theta_sketched_sets.hpp:59</div></div> |
| <div class="ttc" id="aclassdatasketches_1_1jaccard__similarity__base_html"><div class="ttname"><a href="classdatasketches_1_1jaccard__similarity__base.html">datasketches::jaccard_similarity_base</a></div><div class="ttdoc">Base class for Jaccard similarity.</div><div class="ttdef"><b>Definition</b> theta_jaccard_similarity_base.hpp:35</div></div> |
| <div class="ttc" id="aclassdatasketches_1_1jaccard__similarity__base_html_a18c18c5c7351430540000bf360f523fc"><div class="ttname"><a href="classdatasketches_1_1jaccard__similarity__base.html#a18c18c5c7351430540000bf360f523fc">datasketches::jaccard_similarity_base::exactly_equal</a></div><div class="ttdeci">static bool exactly_equal(const SketchA &sketch_a, const SketchB &sketch_b, uint64_t seed=DEFAULT_SEED)</div><div class="ttdoc">Returns true if the two given sketches are equivalent.</div><div class="ttdef"><b>Definition</b> theta_jaccard_similarity_base.hpp:85</div></div> |
| <div class="ttc" id="aclassdatasketches_1_1jaccard__similarity__base_html_a5bc3426c328c625eb345a5c00c755004"><div class="ttname"><a href="classdatasketches_1_1jaccard__similarity__base.html#a5bc3426c328c625eb345a5c00c755004">datasketches::jaccard_similarity_base::dissimilarity_test</a></div><div class="ttdeci">static bool dissimilarity_test(const SketchA &actual, const SketchB &expected, double threshold, uint64_t seed=DEFAULT_SEED)</div><div class="ttdoc">Tests dissimilarity of an actual Sketch against an expected Sketch.</div><div class="ttdef"><b>Definition</b> theta_jaccard_similarity_base.hpp:130</div></div> |
| <div class="ttc" id="aclassdatasketches_1_1jaccard__similarity__base_html_a8a2af62ca89e1120a6019ee10cd90e04"><div class="ttname"><a href="classdatasketches_1_1jaccard__similarity__base.html#a8a2af62ca89e1120a6019ee10cd90e04">datasketches::jaccard_similarity_base::jaccard</a></div><div class="ttdeci">static std::array< double, 3 > jaccard(const SketchA &sketch_a, const SketchB &sketch_b, uint64_t seed=DEFAULT_SEED)</div><div class="ttdoc">Computes the Jaccard similarity index with upper and lower bounds.</div><div class="ttdef"><b>Definition</b> theta_jaccard_similarity_base.hpp:55</div></div> |
| <div class="ttc" id="aclassdatasketches_1_1jaccard__similarity__base_html_a919ce3dd7d15658fe67eb359368e9f07"><div class="ttname"><a href="classdatasketches_1_1jaccard__similarity__base.html#a919ce3dd7d15658fe67eb359368e9f07">datasketches::jaccard_similarity_base::similarity_test</a></div><div class="ttdeci">static bool similarity_test(const SketchA &actual, const SketchB &expected, double threshold, uint64_t seed=DEFAULT_SEED)</div><div class="ttdoc">Tests similarity of an actual Sketch against an expected Sketch.</div><div class="ttdef"><b>Definition</b> theta_jaccard_similarity_base.hpp:110</div></div> |
| <div class="ttc" id="anamespacedatasketches_1_1theta__constants_html_a80c5dfefaf69318c0894ec34c34d0987"><div class="ttname"><a href="namespacedatasketches_1_1theta__constants.html#a80c5dfefaf69318c0894ec34c34d0987">datasketches::theta_constants::MIN_LG_K</a></div><div class="ttdeci">const uint8_t MIN_LG_K</div><div class="ttdoc">min log2 of K</div><div class="ttdef"><b>Definition</b> theta_constants.hpp:38</div></div> |
| <div class="ttc" id="anamespacedatasketches_1_1theta__constants_html_ad15c7a6b3af91806e0a9743d27943d49"><div class="ttname"><a href="namespacedatasketches_1_1theta__constants.html#ad15c7a6b3af91806e0a9743d27943d49">datasketches::theta_constants::MAX_LG_K</a></div><div class="ttdeci">const uint8_t MAX_LG_K</div><div class="ttdoc">max log2 of K</div><div class="ttdef"><b>Definition</b> theta_constants.hpp:40</div></div> |
| <div class="ttc" id="anamespacedatasketches_html"><div class="ttname"><a href="namespacedatasketches.html">datasketches</a></div><div class="ttdoc">DataSketches namespace.</div><div class="ttdef"><b>Definition</b> binomial_bounds.hpp:38</div></div> |
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