/usr/include/torch/LogRBF.h is in libtorch3-dev 3.1-2.2.
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_RBF_INC
#define LOG_RBF_INC
#include "GradientMachine.h"
#include "EMTrainer.h"
namespace Torch {
/** LogRBF layer for #GradientMachine#.
Formally speaking, $ouputs[i] = -0.5 \sum_j gamma_ij^2 * (inputs[j] - mu_ij)^2$.\\
$mu_ij$ and $gamma_ij$ are in #params#, with the following structure:\\
$mu_00... mu_0n, gamma_00.. gamma_0n,..., $\\
For a better initialization, one can provide a #EMTrainer# using a
#Kmeans# distribution that will be used to initialize the means and
gamma.
@author Ronan Collobert (collober@idiap.ch)
*/
class LogRBF : public GradientMachine
{
public:
real *gamma;
real *mu;
real *der_gamma;
real *der_mu;
/// optional initialization using a Kmeans
EMTrainer* initial_kmeans_trainer;
///
LogRBF(int n_inputs_, int n_outputs_, EMTrainer* kmeans_trainer=NULL);
//-----
virtual void setDataSet(DataSet* data_);
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 ~LogRBF();
};
}
#endif
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