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<div class="title">random_init.hpp</div> </div>
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<a href="amf_2init__rules_2random__init_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="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#ifndef MLPACK_METHODS_LMF_RANDOM_INIT_HPP</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#define MLPACK_METHODS_LMF_RANDOM_INIT_HPP</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 <<a class="code" href="prereqs_8hpp.html">mlpack/prereqs.hpp</a>></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> <span class="keyword">namespace </span><a class="code" href="namespacemlpack.html">mlpack</a> {</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>amf {</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00025"></a><span class="lineno"><a class="line" href="classmlpack_1_1amf_1_1RandomInitialization.html"> 25</a></span> <span class="keyword">class </span><a class="code" href="classmlpack_1_1amf_1_1RandomInitialization.html">RandomInitialization</a></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> {</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="comment">// Empty constructor required for the InitializeRule template</span></div><div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="classmlpack_1_1amf_1_1RandomInitialization.html#afbb2f299c75e717e393c8464f233df75"> 29</a></span>  <a class="code" href="classmlpack_1_1amf_1_1RandomInitialization.html#afbb2f299c75e717e393c8464f233df75">RandomInitialization</a>() { }</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">template</span><<span class="keyword">typename</span> MatType></div><div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="classmlpack_1_1amf_1_1RandomInitialization.html#ae968a72010bb14abc671ebdfd74de1e0"> 40</a></span>  <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classmlpack_1_1amf_1_1RandomInitialization.html#ae968a72010bb14abc671ebdfd74de1e0">Initialize</a>(<span class="keyword">const</span> MatType& V,</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> r,</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  arma::mat& W,</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  arma::mat& H)</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>  <span class="comment">// Simple implementation (left in the header file due to its simplicity).</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> n = V.n_rows;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> m = V.n_cols;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="comment">// Initialize to random values.</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  W.randu(n, r);</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  H.randu(r, m);</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> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Archive></div><div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="classmlpack_1_1amf_1_1RandomInitialization.html#a9da606972f56312c02cea1375ad2b594"> 56</a></span>  <span class="keywordtype">void</span> <a class="code" href="classmlpack_1_1amf_1_1RandomInitialization.html#a9da606972f56312c02cea1375ad2b594">Serialize</a>(Archive& <span class="comment">/* ar */</span>, <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="l00057"></a><span class="lineno"> 57</span> };</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> } <span class="comment">// namespace amf</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> } <span class="comment">// namespace mlpack</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="classmlpack_1_1amf_1_1RandomInitialization_html"><div class="ttname"><a href="classmlpack_1_1amf_1_1RandomInitialization.html">mlpack::amf::RandomInitialization</a></div><div class="ttdoc">This initialization rule for AMF simply fills the W and H matrices with uniform random noise in [0...</div><div class="ttdef"><b>Definition:</b> <a href="amf_2init__rules_2random__init_8hpp_source.html#l00025">random_init.hpp:25</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_1amf_1_1RandomInitialization_html_a9da606972f56312c02cea1375ad2b594"><div class="ttname"><a href="classmlpack_1_1amf_1_1RandomInitialization.html#a9da606972f56312c02cea1375ad2b594">mlpack::amf::RandomInitialization::Serialize</a></div><div class="ttdeci">void Serialize(Archive &, const unsigned int)</div><div class="ttdoc">Serialize the object (in this case, there is nothing to serialize). </div><div class="ttdef"><b>Definition:</b> <a href="amf_2init__rules_2random__init_8hpp_source.html#l00056">random_init.hpp:56</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="classmlpack_1_1amf_1_1RandomInitialization_html_ae968a72010bb14abc671ebdfd74de1e0"><div class="ttname"><a href="classmlpack_1_1amf_1_1RandomInitialization.html#ae968a72010bb14abc671ebdfd74de1e0">mlpack::amf::RandomInitialization::Initialize</a></div><div class="ttdeci">static void Initialize(const MatType &V, const size_t r, arma::mat &W, arma::mat &H)</div><div class="ttdoc">Fill W and H with random uniform noise. </div><div class="ttdef"><b>Definition:</b> <a href="amf_2init__rules_2random__init_8hpp_source.html#l00040">random_init.hpp:40</a></div></div>
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<div class="ttc" id="classmlpack_1_1amf_1_1RandomInitialization_html_afbb2f299c75e717e393c8464f233df75"><div class="ttname"><a href="classmlpack_1_1amf_1_1RandomInitialization.html#afbb2f299c75e717e393c8464f233df75">mlpack::amf::RandomInitialization::RandomInitialization</a></div><div class="ttdeci">RandomInitialization()</div><div class="ttdef"><b>Definition:</b> <a href="amf_2init__rules_2random__init_8hpp_source.html#l00029">random_init.hpp:29</a></div></div>
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