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"Vectorized" arcsch for matricies

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novak_99 2021-05-28 16:36:01 -07:00
parent a84e38fc59
commit d76a8787f1
1 changed files with 2 additions and 15 deletions
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17
MLPP/Activation/Activation.cpp
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@ -686,25 +686,12 @@ namespace MLPP{
LinAlg alg; LinAlg alg;
if(deriv){ return alg.elementWiseDivision(alg.full(z.size(), -1), alg.hadamard_product(alg.hadamard_product(z, z), alg.exponentiate(alg.addition(alg.onevec(z.size()), alg.elementWiseDivision(alg.onevec(z.size()), alg.hadamard_product(z, z))), 0.5))); } if(deriv){ return alg.elementWiseDivision(alg.full(z.size(), -1), alg.hadamard_product(alg.hadamard_product(z, z), alg.exponentiate(alg.addition(alg.onevec(z.size()), alg.elementWiseDivision(alg.onevec(z.size()), alg.hadamard_product(z, z))), 0.5))); }
return alg.log(alg.addition(alg.exponentiate(alg.addition(alg.onevec(z.size()), alg.elementWiseDivision(alg.onevec(z.size()), alg.hadamard_product(z, z))), 0.5), alg.elementWiseDivision(alg.onevec(z.size()), z))); return alg.log(alg.addition(alg.exponentiate(alg.addition(alg.onevec(z.size()), alg.elementWiseDivision(alg.onevec(z.size()), alg.hadamard_product(z, z))), 0.5), alg.elementWiseDivision(alg.onevec(z.size()), z)));
} }
std::vector<std::vector<double>> Activation::arcsch(std::vector<std::vector<double>> z, bool deriv){ std::vector<std::vector<double>> Activation::arcsch(std::vector<std::vector<double>> z, bool deriv){
LinAlg alg; LinAlg alg;
if(deriv){ if(deriv){ return alg.elementWiseDivision(alg.full(z.size(), z[0].size(), -1), alg.hadamard_product(alg.hadamard_product(z, z), alg.exponentiate(alg.addition(alg.onemat(z.size(), z[0].size()), alg.elementWiseDivision(alg.onemat(z.size(), z[0].size()), alg.hadamard_product(z, z))), 0.5))); }
std::vector<std::vector<double>> deriv; return alg.log(alg.addition(alg.exponentiate(alg.addition(alg.onemat(z.size(), z[0].size()), alg.elementWiseDivision(alg.onemat(z.size(), z[0].size()), alg.hadamard_product(z, z))), 0.5), alg.elementWiseDivision(alg.onemat(z.size(), z[0].size()), z)));
deriv.resize(z.size());
for(int i = 0; i < z.size(); i++){
deriv[i] = arcsch(z[i], 1);
}
return deriv;
}
std::vector<std::vector<double>> a;
a.resize(z.size());
for(int i = 0; i < z.size(); i++){
a[i] = arcsch(z[i]);
}
return a;
} }