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<div class="title">random_init.hpp</div> </div>
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<a href="ann_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_ANN_INIT_RULES_RANDOM_INIT_HPP</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#define MLPACK_METHODS_ANN_INIT_RULES_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>ann {</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00024"></a><span class="lineno"><a class="line" href="classmlpack_1_1ann_1_1RandomInitialization.html"> 24</a></span> <span class="keyword">class </span><a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html">RandomInitialization</a></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> {</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="classmlpack_1_1ann_1_1RandomInitialization.html#a759e46080f26bb7ca56a43dbac892255"> 34</a></span>  <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#a759e46080f26bb7ca56a43dbac892255">RandomInitialization</a>(<span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#abae29d086c221a9575565960cd77bc43">lowerBound</a> = -1,</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#ab511dd4546b50164dc27033a4ec01e0c">upperBound</a> = 1) :</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#abae29d086c221a9575565960cd77bc43">lowerBound</a>(<a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#abae29d086c221a9575565960cd77bc43">lowerBound</a>), <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#ab511dd4546b50164dc27033a4ec01e0c">upperBound</a>(<a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#ab511dd4546b50164dc27033a4ec01e0c">upperBound</a>) { }</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="classmlpack_1_1ann_1_1RandomInitialization.html#a710c60d81b3b8d069e462a7c6d4fca98"> 45</a></span>  <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#a710c60d81b3b8d069e462a7c6d4fca98">RandomInitialization</a>(<span class="keyword">const</span> <span class="keywordtype">double</span> bound) :</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#abae29d086c221a9575565960cd77bc43">lowerBound</a>(-<a class="code" href="namespacestd.html">std</a>::abs(bound)), <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#ab511dd4546b50164dc27033a4ec01e0c">upperBound</a>(<a class="code" href="namespacestd.html">std</a>::abs(bound)) { }</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">template</span><<span class="keyword">typename</span> eT></div><div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="classmlpack_1_1ann_1_1RandomInitialization.html#a80d8b73d04b33ce114cfb4663831747c"> 56</a></span>  <span class="keywordtype">void</span> <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#a80d8b73d04b33ce114cfb4663831747c">Initialize</a>(arma::Mat<eT>& W, <span class="keyword">const</span> <span class="keywordtype">size_t</span> rows, <span class="keyword">const</span> <span class="keywordtype">size_t</span> cols)</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>  W = <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#abae29d086c221a9575565960cd77bc43">lowerBound</a> + arma::randu<arma::Mat<eT>>(rows, cols) *</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  (<a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#ab511dd4546b50164dc27033a4ec01e0c">upperBound</a> - <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#abae29d086c221a9575565960cd77bc43">lowerBound</a>);</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> </div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">template</span><<span class="keyword">typename</span> eT></div><div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="classmlpack_1_1ann_1_1RandomInitialization.html#a3285c0c7ae0fdf57453e86f610fee91f"> 70</a></span>  <span class="keywordtype">void</span> <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#a3285c0c7ae0fdf57453e86f610fee91f">Initialize</a>(arma::Cube<eT>& W,</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> rows,</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> cols,</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> slices)</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  W = arma::Cube<eT>(rows, cols, slices);</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < slices; i++)</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#a80d8b73d04b33ce114cfb4663831747c">Initialize</a>(W.slice(i), rows, cols);</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  }</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="classmlpack_1_1ann_1_1RandomInitialization.html#abae29d086c221a9575565960cd77bc43"> 83</a></span>  <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#abae29d086c221a9575565960cd77bc43">lowerBound</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_1ann_1_1RandomInitialization.html#ab511dd4546b50164dc27033a4ec01e0c"> 86</a></span>  <span class="keyword">const</span> <span class="keywordtype">double</span> <a class="code" href="classmlpack_1_1ann_1_1RandomInitialization.html#ab511dd4546b50164dc27033a4ec01e0c">upperBound</a>;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> }; <span class="comment">// class RandomInitialization</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> } <span class="comment">// namespace ann</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> } <span class="comment">// namespace mlpack</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="preprocessor">#endif</span></div><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_1ann_1_1RandomInitialization_html_a710c60d81b3b8d069e462a7c6d4fca98"><div class="ttname"><a href="classmlpack_1_1ann_1_1RandomInitialization.html#a710c60d81b3b8d069e462a7c6d4fca98">mlpack::ann::RandomInitialization::RandomInitialization</a></div><div class="ttdeci">RandomInitialization(const double bound)</div><div class="ttdoc">Initialize the random initialization rule with the given bound. </div><div class="ttdef"><b>Definition:</b> <a href="ann_2init__rules_2random__init_8hpp_source.html#l00045">random_init.hpp:45</a></div></div>
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<div class="ttc" id="classmlpack_1_1ann_1_1RandomInitialization_html"><div class="ttname"><a href="classmlpack_1_1ann_1_1RandomInitialization.html">mlpack::ann::RandomInitialization</a></div><div class="ttdoc">This class is used to initialize randomly the weight matrix. </div><div class="ttdef"><b>Definition:</b> <a href="ann_2init__rules_2random__init_8hpp_source.html#l00024">random_init.hpp:24</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_1ann_1_1RandomInitialization_html_ab511dd4546b50164dc27033a4ec01e0c"><div class="ttname"><a href="classmlpack_1_1ann_1_1RandomInitialization.html#ab511dd4546b50164dc27033a4ec01e0c">mlpack::ann::RandomInitialization::upperBound</a></div><div class="ttdeci">const double upperBound</div><div class="ttdoc">The number used as upper bound. </div><div class="ttdef"><b>Definition:</b> <a href="ann_2init__rules_2random__init_8hpp_source.html#l00086">random_init.hpp:86</a></div></div>
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<div class="ttc" id="namespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div><div class="ttdef"><b>Definition:</b> <a href="prereqs_8hpp_source.html#l00056">prereqs.hpp:56</a></div></div>
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<div class="ttc" id="classmlpack_1_1ann_1_1RandomInitialization_html_a3285c0c7ae0fdf57453e86f610fee91f"><div class="ttname"><a href="classmlpack_1_1ann_1_1RandomInitialization.html#a3285c0c7ae0fdf57453e86f610fee91f">mlpack::ann::RandomInitialization::Initialize</a></div><div class="ttdeci">void Initialize(arma::Cube< eT > &W, const size_t rows, const size_t cols, const size_t slices)</div><div class="ttdoc">Initialize randomly the elements of the specified weight 3rd order tensor. </div><div class="ttdef"><b>Definition:</b> <a href="ann_2init__rules_2random__init_8hpp_source.html#l00070">random_init.hpp:70</a></div></div>
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<div class="ttc" id="classmlpack_1_1ann_1_1RandomInitialization_html_a759e46080f26bb7ca56a43dbac892255"><div class="ttname"><a href="classmlpack_1_1ann_1_1RandomInitialization.html#a759e46080f26bb7ca56a43dbac892255">mlpack::ann::RandomInitialization::RandomInitialization</a></div><div class="ttdeci">RandomInitialization(const double lowerBound=-1, const double upperBound=1)</div><div class="ttdoc">Initialize the random initialization rule with the given lower bound and upper bound. </div><div class="ttdef"><b>Definition:</b> <a href="ann_2init__rules_2random__init_8hpp_source.html#l00034">random_init.hpp:34</a></div></div>
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<div class="ttc" id="classmlpack_1_1ann_1_1RandomInitialization_html_abae29d086c221a9575565960cd77bc43"><div class="ttname"><a href="classmlpack_1_1ann_1_1RandomInitialization.html#abae29d086c221a9575565960cd77bc43">mlpack::ann::RandomInitialization::lowerBound</a></div><div class="ttdeci">const double lowerBound</div><div class="ttdoc">The number used as lower bound. </div><div class="ttdef"><b>Definition:</b> <a href="ann_2init__rules_2random__init_8hpp_source.html#l00083">random_init.hpp:83</a></div></div>
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<div class="ttc" id="classmlpack_1_1ann_1_1RandomInitialization_html_a80d8b73d04b33ce114cfb4663831747c"><div class="ttname"><a href="classmlpack_1_1ann_1_1RandomInitialization.html#a80d8b73d04b33ce114cfb4663831747c">mlpack::ann::RandomInitialization::Initialize</a></div><div class="ttdeci">void Initialize(arma::Mat< eT > &W, const size_t rows, const size_t cols)</div><div class="ttdoc">Initialize randomly the elements of the specified weight matrix. </div><div class="ttdef"><b>Definition:</b> <a href="ann_2init__rules_2random__init_8hpp_source.html#l00056">random_init.hpp:56</a></div></div>
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