\hypertarget{activation_8hpp_source}{}\doxysection{activation.\+hpp}
\label{activation_8hpp_source}\index{src/layers/activation.hpp@{src/layers/activation.hpp}}
\mbox{\hyperlink{activation_8hpp}{Go to the documentation of this file.}}
\begin{DoxyCode}{0}
\DoxyCodeLine{1 \textcolor{preprocessor}{\#ifndef ACTIVATION\_LAYER\_HPP}}
\DoxyCodeLine{2 \textcolor{preprocessor}{\#define ACTIVATION\_LAYER\_HPP}}
\DoxyCodeLine{3 }
\DoxyCodeLine{4 \textcolor{preprocessor}{\#include "{}\mbox{\hyperlink{layer_8hpp}{layer.hpp}}"{}}}
\DoxyCodeLine{5 \textcolor{preprocessor}{\#include "{}\mbox{\hyperlink{math_8hpp}{math.hpp}}"{}}}
\DoxyCodeLine{6 }
\DoxyCodeLine{7 \textcolor{keyword}{namespace }\mbox{\hyperlink{namespace_layer}{Layer}}\{}
\DoxyCodeLine{9   \textcolor{keyword}{enum} \mbox{\hyperlink{namespace_layer_a154fb338e15b0326915fb7f9c383ef9f}{ActivationMap}}\{}
\DoxyCodeLine{10     \mbox{\hyperlink{namespace_layer_a154fb338e15b0326915fb7f9c383ef9fa467cf9e29d4001586b13a922da0dc34b}{Sigmoid}} }
\DoxyCodeLine{11   \};}
\DoxyCodeLine{12 }
\DoxyCodeLine{14   \textcolor{keyword}{template}<ActivationMap A> \mbox{\hyperlink{vector_8hpp_a4b04262b81aa7d31eb5d2f607e2a35de}{Real}} \mbox{\hyperlink{namespace_layer_a8bab25d92aa706e26d241614ff6fe81a}{activation\_map}}(\mbox{\hyperlink{vector_8hpp_a4b04262b81aa7d31eb5d2f607e2a35de}{Real}});}
\DoxyCodeLine{15 }
\DoxyCodeLine{17   \textcolor{keyword}{template}<ActivationMap A> \mbox{\hyperlink{vector_8hpp_a4b04262b81aa7d31eb5d2f607e2a35de}{Real}} \mbox{\hyperlink{namespace_layer_ab144999586187c1317641130a7b88013}{activation\_diff\_map}}(\mbox{\hyperlink{vector_8hpp_a4b04262b81aa7d31eb5d2f607e2a35de}{Real}});}
\DoxyCodeLine{18 }
\DoxyCodeLine{23   \textcolor{keyword}{template}<ActivationMap A> \textcolor{keyword}{class }\mbox{\hyperlink{class_layer_1_1_activation_layer}{ActivationLayer}}:\textcolor{keyword}{public} \mbox{\hyperlink{namespace_layer}{Layer}}\{}
\DoxyCodeLine{24   \textcolor{keyword}{public}:}
\DoxyCodeLine{25     \mbox{\hyperlink{class_layer_1_1_activation_layer_a6999fec429ab7f6eafc9ebd5a42a8f76}{ActivationLayer}}(\textcolor{keyword}{const} \textcolor{keywordtype}{size\_t});}
\DoxyCodeLine{26     \mbox{\hyperlink{class_layer_1_1_activation_layer_aa7059282e1e7eeb17b1e36e594e1f2ac}{\string~ActivationLayer}}()\{\};}
\DoxyCodeLine{28     \mbox{\hyperlink{vector_8hpp_ab9855a300a7759f4c0f85067d44e4c38}{Vector}} \mbox{\hyperlink{class_layer_1_1_activation_layer_a9bc3eb83733b4ee5a4a3c5c50e794478}{feed\_forward}}(\mbox{\hyperlink{vector_8hpp_ab9855a300a7759f4c0f85067d44e4c38}{Vector}} \mbox{\hyperlink{class_layer_1_1_layer_af2ebcf019bc0e4b97f41fc9205706665}{x}}) \textcolor{keyword}{override};}
\DoxyCodeLine{30     \textcolor{keywordtype}{void} \mbox{\hyperlink{class_layer_1_1_activation_layer_a230ad43fde65528cc36021e097f111a4}{init\_nabla}}()\textcolor{keyword}{ override }\{\};}
\DoxyCodeLine{32     \mbox{\hyperlink{vector_8hpp_ab9855a300a7759f4c0f85067d44e4c38}{Vector}} \mbox{\hyperlink{class_layer_1_1_activation_layer_aa946acde267d94523d12465ca8976ab9}{back\_propagation}}(\mbox{\hyperlink{vector_8hpp_ab9855a300a7759f4c0f85067d44e4c38}{Vector}} e) \textcolor{keyword}{override};}
\DoxyCodeLine{34     \textcolor{keywordtype}{void} \mbox{\hyperlink{class_layer_1_1_activation_layer_afbc9f12d792008bbaf6d6c2d0177ebf1}{update}}(\mbox{\hyperlink{vector_8hpp_a4b04262b81aa7d31eb5d2f607e2a35de}{Real}} eta)\textcolor{keyword}{ override}\{\};}
\DoxyCodeLine{35   \};}
\DoxyCodeLine{36 }
\DoxyCodeLine{37   \textcolor{keyword}{template}<ActivationMap A>}
\DoxyCodeLine{38   \textcolor{keyword}{inline}}
\DoxyCodeLine{39   \mbox{\hyperlink{class_layer_1_1_activation_layer_a6999fec429ab7f6eafc9ebd5a42a8f76}{ActivationLayer<A>::ActivationLayer}}(\textcolor{keywordtype}{size\_t} n):\mbox{\hyperlink{namespace_layer}{Layer}}(n,n)\{}
\DoxyCodeLine{40   \}}
\DoxyCodeLine{41 }
\DoxyCodeLine{42   \textcolor{keyword}{template}<ActivationMap A>}
\DoxyCodeLine{43   \textcolor{keyword}{inline} \mbox{\hyperlink{vector_8hpp_ab9855a300a7759f4c0f85067d44e4c38}{Vector}}}
\DoxyCodeLine{44   \mbox{\hyperlink{class_layer_1_1_activation_layer_a9bc3eb83733b4ee5a4a3c5c50e794478}{ActivationLayer<A>::feed\_forward}}(\mbox{\hyperlink{vector_8hpp_ab9855a300a7759f4c0f85067d44e4c38}{Vector}} x\_)\{}
\DoxyCodeLine{45     x=x\_;}
\DoxyCodeLine{46     \textcolor{keywordflow}{for}(\textcolor{keywordtype}{size\_t} i=0;i<n;++i)\{}
\DoxyCodeLine{47       y[i]=activation\_map<A>(x[i]);}
\DoxyCodeLine{48     \}}
\DoxyCodeLine{49     \textcolor{keywordflow}{return} y;}
\DoxyCodeLine{50   \}}
\DoxyCodeLine{51 }
\DoxyCodeLine{52   \textcolor{keyword}{template}<ActivationMap A>}
\DoxyCodeLine{53   \textcolor{keyword}{inline} \mbox{\hyperlink{vector_8hpp_ab9855a300a7759f4c0f85067d44e4c38}{Vector}}}
\DoxyCodeLine{54   \mbox{\hyperlink{class_layer_1_1_activation_layer_aa946acde267d94523d12465ca8976ab9}{ActivationLayer<A>::back\_propagation}}(\mbox{\hyperlink{vector_8hpp_ab9855a300a7759f4c0f85067d44e4c38}{Vector}} e)\{}
\DoxyCodeLine{55     \textcolor{keywordflow}{for}(\textcolor{keywordtype}{size\_t} i=0;i<n;++i)\{}
\DoxyCodeLine{56       d[i]=activation\_diff\_map<A>(x[i])*e[i];}
\DoxyCodeLine{57     \}}
\DoxyCodeLine{58     \textcolor{keywordflow}{return} d;}
\DoxyCodeLine{59   \}}
\DoxyCodeLine{60 }
\DoxyCodeLine{61   \textcolor{keyword}{template}<>}
\DoxyCodeLine{62   \textcolor{keyword}{inline} \mbox{\hyperlink{vector_8hpp_a4b04262b81aa7d31eb5d2f607e2a35de}{Real}}}
\DoxyCodeLine{63   \mbox{\hyperlink{namespace_layer_a1cc1cac69c2c7e23cd745cdaaa900265}{activation\_map<Sigmoid>}}(\mbox{\hyperlink{vector_8hpp_a4b04262b81aa7d31eb5d2f607e2a35de}{Real}} x)\{}
\DoxyCodeLine{64     \textcolor{keywordflow}{return} 1.0/(1.0+\mbox{\hyperlink{namespace_math_a7e8411f9880b87ade916aee8531d0c11}{exp}}(-\/x));}
\DoxyCodeLine{65   \}}
\DoxyCodeLine{66 }
\DoxyCodeLine{67   \textcolor{keyword}{template}<>}
\DoxyCodeLine{68   \textcolor{keyword}{inline} \mbox{\hyperlink{vector_8hpp_a4b04262b81aa7d31eb5d2f607e2a35de}{Real}}}
\DoxyCodeLine{69   \mbox{\hyperlink{namespace_layer_a2a722f834e422b77ee155b2bd252c995}{activation\_diff\_map<Sigmoid>}}(\mbox{\hyperlink{vector_8hpp_a4b04262b81aa7d31eb5d2f607e2a35de}{Real}} x)\{}
\DoxyCodeLine{70     \mbox{\hyperlink{vector_8hpp_a4b04262b81aa7d31eb5d2f607e2a35de}{Real}} t=\mbox{\hyperlink{namespace_layer_a1cc1cac69c2c7e23cd745cdaaa900265}{activation\_map<Sigmoid>}}(x);}
\DoxyCodeLine{71     \textcolor{keywordflow}{return} t*(1.0-\/t);}
\DoxyCodeLine{72   \}}
\DoxyCodeLine{73 \}}
\DoxyCodeLine{74 \textcolor{preprocessor}{\#endif}}

\end{DoxyCode}