rec/fdeep/layers/leaky_relu_layer.hpp
2020-03-18 14:42:46 +08:00

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// Copyright 2016, Tobias Hermann.
// https://github.com/Dobiasd/frugally-deep
// Distributed under the MIT License.
// (See accompanying LICENSE file or at
// https://opensource.org/licenses/MIT)
#pragma once
#include "fdeep/layers/activation_layer.hpp"
#include <string>
namespace fdeep { namespace internal
{
class leaky_relu_layer : public activation_layer
{
public:
explicit leaky_relu_layer(const std::string& name, float_type alpha) :
activation_layer(name), alpha_(alpha)
{
}
protected:
float_type alpha_;
tensor5 transform_input(const tensor5& in_vol) const override
{
auto activation_function = [this](float_type x) -> float_type
{
return x > 0 ? x : alpha_ * x;
};
return transform_tensor5(activation_function, in_vol);
}
};
} } // namespace fdeep, namespace internal