weight_norm.hpp

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#ifndef MLPACK_METHODS_ANN_LAYER_WEIGHTNORM_HPP
#define MLPACK_METHODS_ANN_LAYER_WEIGHTNORM_HPP
 
#include <mlpack/prereqs.hpp>
#include "layer_types.hpp"
 
#include "../visitor/delete_visitor.hpp"
#include "../visitor/delta_visitor.hpp"
#include "../visitor/output_parameter_visitor.hpp"
#include "../visitor/reset_visitor.hpp"
#include "../visitor/weight_size_visitor.hpp"
#include "../visitor/weight_set_visitor.hpp"
 
namespace mlpack {
namespace ann  {
 
template <
  typename InputDataType = arma::mat,
  typename OutputDataType = arma::mat,
  typename... CustomLayers
>
class WeightNorm
{
 public:
  WeightNorm(LayerTypes<CustomLayers...> layer = LayerTypes<CustomLayers...>());
 
  ~WeightNorm();
 
  void Reset();
 
  template<typename eT>
  void Forward(const arma::Mat<eT>& input, arma::Mat<eT>& output);
 
  template<typename eT>
  void Backward(const arma::Mat<eT>& input,
                const arma::Mat<eT>& gy,
                arma::Mat<eT>& g);
 
  template<typename eT>
  void Gradient(const arma::Mat<eT>& input,
                const arma::Mat<eT>& error,
                arma::Mat<eT>& gradient);
 
  OutputDataType const& Delta() const { return delta; }
  OutputDataType& Delta() { return delta; }
 
  OutputDataType const& Gradient() const { return gradient; }
  OutputDataType& Gradient() { return gradient; }
 
  OutputDataType const& OutputParameter() const { return outputParameter; }
  OutputDataType& OutputParameter() { return outputParameter; }
 
  OutputDataType const& Parameters() const { return weights; }
  OutputDataType& Parameters() { return weights; }
 
  LayerTypes<CustomLayers...> const& Layer() { return wrappedLayer; }
 
  template<typename Archive>
  void serialize(Archive& ar, const unsigned int /* version */);
 
 private:
  size_t biasWeightSize;
 
  DeleteVisitor deleteVisitor;
 
  OutputDataType delta;
 
  DeltaVisitor deltaVisitor;
 
  OutputDataType gradient;
 
  LayerTypes<CustomLayers...> wrappedLayer;
 
  size_t layerWeightSize;
 
  OutputDataType outputParameter;
 
  OutputParameterVisitor outputParameterVisitor;
 
  void ResetGradients(arma::mat& gradient);
 
  ResetVisitor resetVisitor;
 
  OutputDataType scalarParameter;
 
  OutputDataType vectorParameter;
 
  OutputDataType weights;
 
  WeightSizeVisitor weightSizeVisitor;
 
  OutputDataType layerGradients;
 
  OutputDataType layerWeights;
}; // class WeightNorm
 
} // namespace ann
} // namespace mlpack
 
// Include the implementation.
#include "weight_norm_impl.hpp"
 
#endif