27 lines
777 B
C++
27 lines
777 B
C++
#pragma once
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#include "./ActivationFunction.h"
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#include <cmath>
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namespace NeuralNetwork {
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namespace ActivationFunction {
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class HyperbolicTangent: public ActivationFunction {
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public:
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HyperbolicTangent(const float& lam=1):lambda(lam) {}
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inline virtual float derivatedOutput(const float&,const float &output) override { return lambda*(1-output*output); }
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inline virtual float operator()(const float &x) override { return tanh(lambda*x); };
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virtual ActivationFunction* clone() const override {
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return new HyperbolicTangent(lambda);
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}
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virtual std::string stringify() const override {
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return "{ \"class\": \"NeuralNetwork::ActivationFunction::HyperbolicTangent\", \"lamba\" : "+std::to_string(lambda)+"}";
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}
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protected:
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float lambda;
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};
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}
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} |