/usr/include/torch/LogSigmoid.h is in libtorch3-dev 3.1-2.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// This file is part of Torch 3.1.
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#ifndef LOG_SIGMOID_INC
#define LOG_SIGMOID_INC
#include "GradientMachine.h"
namespace Torch {
/** Log-Sigmoid layer for #GradientMachine#.
The number of inputs/outputs is the number
of units of this machine.
Formally speaking, $ouputs[i] = log(1/(1+exp(-inputs[i])))$
@author Ronan Collobert (collober@idiap.ch)
*/
class LogSigmoid : public GradientMachine
{
public:
real *buff;
//-----
/// Create a layer with #n_units# units.
LogSigmoid(int n_units);
//-----
virtual void frameForward(int t, real *f_inputs, real *f_outputs);
virtual void frameBackward(int t, real *f_inputs, real *beta_, real *f_outputs, real *alpha_);
virtual ~LogSigmoid();
};
}
#endif
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