40 lines
849 B
C++
40 lines
849 B
C++
#pragma once
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#include "./core/omp_config.h"
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#include "./utils/vector.h"
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#include "./utils/matrix.h"
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#include "./numerics/matmax.h"
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#include "./numerics/matsubtract.h"
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#include "./numerics/matexp.h"
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#include "./numerics/matdiv.h"
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namespace neural_networks{
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template <typename T>
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struct Activation_Softmax{
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utils::Matrix<T> exp_values;
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utils::Matrix<T> probabilities;
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utils::Matrix<T> outputs;
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void forward(const utils::Matrix<T>& inputs){
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// Get unnormalized probabilities
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exp_values = numerics::matexp(numerics::matsubtract(inputs, numerics::matmax(inputs, "rows"), "col"));
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// Normalize them for each sample
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probabilities = numerics::matdiv(exp_values, numerics::matsum(exp_values, "col"), "col");
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outputs = probabilities;
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}
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};
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} // end namespace neural_networks
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