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<div class="title">refined_start.hpp</div> </div>
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<a href="refined__start_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#ifndef MLPACK_METHODS_KMEANS_REFINED_START_HPP</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#define MLPACK_METHODS_KMEANS_REFINED_START_HPP</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <<a class="code" href="prereqs_8hpp.html">mlpack/prereqs.hpp</a>></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><a class="code" href="namespacemlpack.html">mlpack</a> {</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">namespace </span>kmeans {</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="classmlpack_1_1kmeans_1_1RefinedStart.html"> 37</a></span> <span class="keyword">class </span><a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html">RefinedStart</a></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">public</span>:</div><div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="classmlpack_1_1kmeans_1_1RefinedStart.html#adde167739b1f6a60b818ecba61b36075"> 45</a></span>  <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#adde167739b1f6a60b818ecba61b36075">RefinedStart</a>(<span class="keyword">const</span> <span class="keywordtype">size_t</span> <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a61b896a0eac690c67f258bf127beab15">samplings</a> = 100,</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a12e904e46c1c8d2b38c9f4e4a2c95477">percentage</a> = 0.02) :</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a61b896a0eac690c67f258bf127beab15">samplings</a>(<a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a61b896a0eac690c67f258bf127beab15">samplings</a>), <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a12e904e46c1c8d2b38c9f4e4a2c95477">percentage</a>(<a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a12e904e46c1c8d2b38c9f4e4a2c95477">percentage</a>) { }</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">template</span><<span class="keyword">typename</span> MatType></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordtype">void</span> <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a890ccabc318ff518e8a88e75f9f0e7d9">Cluster</a>(<span class="keyword">const</span> MatType& data,</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> clusters,</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  arma::mat& centroids) <span class="keyword">const</span>;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">template</span><<span class="keyword">typename</span> MatType></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordtype">void</span> <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a890ccabc318ff518e8a88e75f9f0e7d9">Cluster</a>(<span class="keyword">const</span> MatType& data,</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> clusters,</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  arma::Row<size_t>& assignments) <span class="keyword">const</span>;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div><div class="line"><a name="l00081"></a><span class="lineno"><a class="line" href="classmlpack_1_1kmeans_1_1RefinedStart.html#af3e5baee99d8a819727a4dc4de3de832"> 81</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#af3e5baee99d8a819727a4dc4de3de832">Samplings</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a61b896a0eac690c67f258bf127beab15">samplings</a>; }</div><div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a6ea1474663b9ab0a81ced2618da4088f"> 83</a></span>  <span class="keywordtype">size_t</span>& <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a6ea1474663b9ab0a81ced2618da4088f">Samplings</a>() { <span class="keywordflow">return</span> <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a61b896a0eac690c67f258bf127beab15">samplings</a>; }</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="classmlpack_1_1kmeans_1_1RefinedStart.html#aedb68e69d98b83790dcf86d5ce0b898a"> 86</a></span>  <span class="keywordtype">double</span> <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#aedb68e69d98b83790dcf86d5ce0b898a">Percentage</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a12e904e46c1c8d2b38c9f4e4a2c95477">percentage</a>; }</div><div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a43b1e93b34096dab2168f59e9b996e22"> 88</a></span>  <span class="keywordtype">double</span>& <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a43b1e93b34096dab2168f59e9b996e22">Percentage</a>() { <span class="keywordflow">return</span> <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a12e904e46c1c8d2b38c9f4e4a2c95477">percentage</a>; }</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Archive></div><div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a352f8bc1555fa578ce96454c2765bdbf"> 92</a></span>  <span class="keywordtype">void</span> <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a352f8bc1555fa578ce96454c2765bdbf">Serialize</a>(Archive& ar, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <span class="comment">/* version */</span>)</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  {</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  ar & <a class="code" href="namespacemlpack_1_1data.html#a785ee98e0070286ef86eeeea85a74018">data::CreateNVP</a>(<a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a61b896a0eac690c67f258bf127beab15">samplings</a>, <span class="stringliteral">"samplings"</span>);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  ar & <a class="code" href="namespacemlpack_1_1data.html#a785ee98e0070286ef86eeeea85a74018">data::CreateNVP</a>(<a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a12e904e46c1c8d2b38c9f4e4a2c95477">percentage</a>, <span class="stringliteral">"percentage"</span>);</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  }</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a61b896a0eac690c67f258bf127beab15"> 100</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a61b896a0eac690c67f258bf127beab15">samplings</a>;</div><div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a12e904e46c1c8d2b38c9f4e4a2c95477"> 102</a></span>  <span class="keywordtype">double</span> <a class="code" href="classmlpack_1_1kmeans_1_1RefinedStart.html#a12e904e46c1c8d2b38c9f4e4a2c95477">percentage</a>;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> };</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> } <span class="comment">// namespace kmeans</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> } <span class="comment">// namespace mlpack</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment">// Include implementation.</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="preprocessor">#include "refined_start_impl.hpp"</span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="classmlpack_1_1kmeans_1_1RefinedStart_html_af3e5baee99d8a819727a4dc4de3de832"><div class="ttname"><a href="classmlpack_1_1kmeans_1_1RefinedStart.html#af3e5baee99d8a819727a4dc4de3de832">mlpack::kmeans::RefinedStart::Samplings</a></div><div class="ttdeci">size_t Samplings() const </div><div class="ttdoc">Get the number of samplings that will be performed. </div><div class="ttdef"><b>Definition:</b> <a href="refined__start_8hpp_source.html#l00081">refined_start.hpp:81</a></div></div>
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<div class="ttc" id="classmlpack_1_1kmeans_1_1RefinedStart_html_a352f8bc1555fa578ce96454c2765bdbf"><div class="ttname"><a href="classmlpack_1_1kmeans_1_1RefinedStart.html#a352f8bc1555fa578ce96454c2765bdbf">mlpack::kmeans::RefinedStart::Serialize</a></div><div class="ttdeci">void Serialize(Archive &ar, const unsigned int)</div><div class="ttdoc">Serialize the object. </div><div class="ttdef"><b>Definition:</b> <a href="refined__start_8hpp_source.html#l00092">refined_start.hpp:92</a></div></div>
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<div class="ttc" id="namespacemlpack_html"><div class="ttname"><a href="namespacemlpack.html">mlpack</a></div><div class="ttdoc">Linear algebra utility functions, generally performed on matrices or vectors. </div><div class="ttdef"><b>Definition:</b> <a href="binarize_8hpp_source.html#l00018">binarize.hpp:18</a></div></div>
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<div class="ttc" id="classmlpack_1_1kmeans_1_1RefinedStart_html_a890ccabc318ff518e8a88e75f9f0e7d9"><div class="ttname"><a href="classmlpack_1_1kmeans_1_1RefinedStart.html#a890ccabc318ff518e8a88e75f9f0e7d9">mlpack::kmeans::RefinedStart::Cluster</a></div><div class="ttdeci">void Cluster(const MatType &data, const size_t clusters, arma::mat &centroids) const </div><div class="ttdoc">Partition the given dataset into the given number of clusters according to the random sampling scheme...</div></div>
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<div class="ttc" id="classmlpack_1_1kmeans_1_1RefinedStart_html_adde167739b1f6a60b818ecba61b36075"><div class="ttname"><a href="classmlpack_1_1kmeans_1_1RefinedStart.html#adde167739b1f6a60b818ecba61b36075">mlpack::kmeans::RefinedStart::RefinedStart</a></div><div class="ttdeci">RefinedStart(const size_t samplings=100, const double percentage=0.02)</div><div class="ttdoc">Create the RefinedStart object, optionally specifying parameters for the number of samplings to perfo...</div><div class="ttdef"><b>Definition:</b> <a href="refined__start_8hpp_source.html#l00045">refined_start.hpp:45</a></div></div>
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<div class="ttc" id="prereqs_8hpp_html"><div class="ttname"><a href="prereqs_8hpp.html">prereqs.hpp</a></div><div class="ttdoc">The core includes that mlpack expects; standard C++ includes and Armadillo. </div></div>
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<div class="ttc" id="namespacemlpack_1_1data_html_a785ee98e0070286ef86eeeea85a74018"><div class="ttname"><a href="namespacemlpack_1_1data.html#a785ee98e0070286ef86eeeea85a74018">mlpack::data::CreateNVP</a></div><div class="ttdeci">FirstShim< T > CreateNVP(T &t, const std::string &name, typename std::enable_if_t< HasSerialize< T >::value > *=0)</div><div class="ttdoc">Call this function to produce a name-value pair; this is similar to BOOST_SERIALIZATION_NVP(), but should be used for types that have a Serialize() function (or contain a type that has a Serialize() function) instead of a serialize() function. </div><div class="ttdef"><b>Definition:</b> <a href="serialization__shim_8hpp_source.html#l00094">serialization_shim.hpp:94</a></div></div>
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<div class="ttc" id="classmlpack_1_1kmeans_1_1RefinedStart_html_a43b1e93b34096dab2168f59e9b996e22"><div class="ttname"><a href="classmlpack_1_1kmeans_1_1RefinedStart.html#a43b1e93b34096dab2168f59e9b996e22">mlpack::kmeans::RefinedStart::Percentage</a></div><div class="ttdeci">double & Percentage()</div><div class="ttdoc">Modify the percentage of the data used by each subsampling. </div><div class="ttdef"><b>Definition:</b> <a href="refined__start_8hpp_source.html#l00088">refined_start.hpp:88</a></div></div>
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<div class="ttc" id="classmlpack_1_1kmeans_1_1RefinedStart_html_a12e904e46c1c8d2b38c9f4e4a2c95477"><div class="ttname"><a href="classmlpack_1_1kmeans_1_1RefinedStart.html#a12e904e46c1c8d2b38c9f4e4a2c95477">mlpack::kmeans::RefinedStart::percentage</a></div><div class="ttdeci">double percentage</div><div class="ttdoc">The percentage of the data to use for each subsampling. </div><div class="ttdef"><b>Definition:</b> <a href="refined__start_8hpp_source.html#l00102">refined_start.hpp:102</a></div></div>
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<div class="ttc" id="classmlpack_1_1kmeans_1_1RefinedStart_html_aedb68e69d98b83790dcf86d5ce0b898a"><div class="ttname"><a href="classmlpack_1_1kmeans_1_1RefinedStart.html#aedb68e69d98b83790dcf86d5ce0b898a">mlpack::kmeans::RefinedStart::Percentage</a></div><div class="ttdeci">double Percentage() const </div><div class="ttdoc">Get the percentage of the data used by each subsampling. </div><div class="ttdef"><b>Definition:</b> <a href="refined__start_8hpp_source.html#l00086">refined_start.hpp:86</a></div></div>
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<div class="ttc" id="classmlpack_1_1kmeans_1_1RefinedStart_html_a61b896a0eac690c67f258bf127beab15"><div class="ttname"><a href="classmlpack_1_1kmeans_1_1RefinedStart.html#a61b896a0eac690c67f258bf127beab15">mlpack::kmeans::RefinedStart::samplings</a></div><div class="ttdeci">size_t samplings</div><div class="ttdoc">The number of samplings to perform. </div><div class="ttdef"><b>Definition:</b> <a href="refined__start_8hpp_source.html#l00100">refined_start.hpp:100</a></div></div>
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<div class="ttc" id="classmlpack_1_1kmeans_1_1RefinedStart_html"><div class="ttname"><a href="classmlpack_1_1kmeans_1_1RefinedStart.html">mlpack::kmeans::RefinedStart</a></div><div class="ttdoc">A refined approach for choosing initial points for k-means clustering. </div><div class="ttdef"><b>Definition:</b> <a href="refined__start_8hpp_source.html#l00037">refined_start.hpp:37</a></div></div>
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<div class="ttc" id="classmlpack_1_1kmeans_1_1RefinedStart_html_a6ea1474663b9ab0a81ced2618da4088f"><div class="ttname"><a href="classmlpack_1_1kmeans_1_1RefinedStart.html#a6ea1474663b9ab0a81ced2618da4088f">mlpack::kmeans::RefinedStart::Samplings</a></div><div class="ttdeci">size_t & Samplings()</div><div class="ttdoc">Modify the number of samplings that will be performed. </div><div class="ttdef"><b>Definition:</b> <a href="refined__start_8hpp_source.html#l00083">refined_start.hpp:83</a></div></div>
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