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<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_44a936ef30fc126706c6284a2fc0c990.html">mlpack</a></li><li class="navelem"><a class="el" href="dir_3cfbf900288ec2fe8dd2c2c8482f216e.html">methods</a></li><li class="navelem"><a class="el" href="dir_04cdefcc9a97fb221ee3f2d7fb8aab76.html">ann</a></li><li class="navelem"><a class="el" href="dir_b555923761b25372c22bbdf14676b4b4.html">visitor</a></li> </ul>
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<div class="title">gradient_zero_visitor.hpp</div> </div>
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<a href="gradient__zero__visitor_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_VISITOR_GRADIENT_ZERO_VISITOR_HPP</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#define MLPACK_METHODS_ANN_VISITOR_GRADIENT_ZERO_VISITOR_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="layer__traits_8hpp.html">mlpack/methods/ann/layer/layer_traits.hpp</a>></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <<a class="code" href="layer__types_8hpp.html">mlpack/methods/ann/layer/layer_types.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="preprocessor">#include <boost/variant.hpp></span></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">namespace </span><a class="code" href="namespacemlpack.html">mlpack</a> {</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">namespace </span>ann {</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">/*</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * GradientZeroVisitor set the gradient to zero for the given module.</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"><a class="line" href="classmlpack_1_1ann_1_1GradientZeroVisitor.html"> 27</a></span> <span class="keyword">class </span><a class="code" href="classmlpack_1_1ann_1_1GradientZeroVisitor.html">GradientZeroVisitor</a> : <span class="keyword">public</span> boost::static_visitor<void></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> {</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <a class="code" href="classmlpack_1_1ann_1_1GradientZeroVisitor.html#a09e7548acc3857b406069cd9e33143c2">GradientZeroVisitor</a>();</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keyword">template</span><<span class="keyword">typename</span> LayerType></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordtype">void</span> <a class="code" href="classmlpack_1_1ann_1_1GradientZeroVisitor.html#a90cddfd68148a5fa4d2917a5726733eb">operator()</a>(LayerType* layer) <span class="keyword">const</span>;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">typename</span> std::enable_if<</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  HasGradientCheck<T, arma::mat&(T::*)()>::value, <span class="keywordtype">void</span>>::type</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <a class="code" href="classmlpack_1_1ann_1_1GradientZeroVisitor.html#a073aede65616589c8b13377bd4a849c1">LayerGradients</a>(T* layer, arma::mat& input) <span class="keyword">const</span>;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> P></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">typename</span> std::enable_if<</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  !HasGradientCheck<T, P&(T::*)()>::value, <span class="keywordtype">void</span>>::type</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <a class="code" href="classmlpack_1_1ann_1_1GradientZeroVisitor.html#a073aede65616589c8b13377bd4a849c1">LayerGradients</a>(T* layer, P& input) <span class="keyword">const</span>;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> };</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> } <span class="comment">// namespace ann</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> } <span class="comment">// namespace mlpack</span></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="comment">// Include implementation.</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#include "gradient_zero_visitor_impl.hpp"</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> <span class="preprocessor">#endif</span></div><div class="ttc" id="layer__traits_8hpp_html"><div class="ttname"><a href="layer__traits_8hpp.html">layer_traits.hpp</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_1ann_1_1GradientZeroVisitor_html_a073aede65616589c8b13377bd4a849c1"><div class="ttname"><a href="classmlpack_1_1ann_1_1GradientZeroVisitor.html#a073aede65616589c8b13377bd4a849c1">mlpack::ann::GradientZeroVisitor::LayerGradients</a></div><div class="ttdeci">std::enable_if< HasGradientCheck< T, arma::mat &(T::*)()>::value, void >::type LayerGradients(T *layer, arma::mat &input) const </div><div class="ttdoc">Set the gradient to zero if the module implements the Gradient() function. </div></div>
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<div class="ttc" id="classmlpack_1_1ann_1_1GradientZeroVisitor_html_a09e7548acc3857b406069cd9e33143c2"><div class="ttname"><a href="classmlpack_1_1ann_1_1GradientZeroVisitor.html#a09e7548acc3857b406069cd9e33143c2">mlpack::ann::GradientZeroVisitor::GradientZeroVisitor</a></div><div class="ttdeci">GradientZeroVisitor()</div><div class="ttdoc">Set the gradient to zero for the given module. </div></div>
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<div class="ttc" id="classmlpack_1_1ann_1_1GradientZeroVisitor_html"><div class="ttname"><a href="classmlpack_1_1ann_1_1GradientZeroVisitor.html">mlpack::ann::GradientZeroVisitor</a></div><div class="ttdef"><b>Definition:</b> <a href="gradient__zero__visitor_8hpp_source.html#l00027">gradient_zero_visitor.hpp:27</a></div></div>
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<div class="ttc" id="layer__types_8hpp_html"><div class="ttname"><a href="layer__types_8hpp.html">layer_types.hpp</a></div></div>
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<div class="ttc" id="classmlpack_1_1ann_1_1GradientZeroVisitor_html_a90cddfd68148a5fa4d2917a5726733eb"><div class="ttname"><a href="classmlpack_1_1ann_1_1GradientZeroVisitor.html#a90cddfd68148a5fa4d2917a5726733eb">mlpack::ann::GradientZeroVisitor::operator()</a></div><div class="ttdeci">void operator()(LayerType *layer) const </div><div class="ttdoc">Set the gradient to zero. </div></div>
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