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Dropout.cpp
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33 lines (29 loc) · 850 Bytes
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/*******************************************************
* Copyright (c) 2017, ArrayFire
* All rights reserved.
*
* This file is distributed under 3-clause BSD license.
* The complete license agreement can be obtained at:
* http://arrayfire.com/licenses/BSD-3-Clause
********************************************************/
#include <af/autograd/Functions.hpp>
#include <af/nn/Init.hpp>
#include <af/nn/Modules/Dropout.hpp>
namespace af
{
namespace nn
{
using namespace autograd;
Dropout::Dropout(double drop_ratio) :
m_ratio(drop_ratio)
{
}
Variable Dropout::forward(const Variable &input)
{
if(m_train)
return (uniform(input.dims(), 0.0, 1.0, f32, false) > m_ratio) * input;
else
return input;
}
}
}