soft_margin_loss.hpp

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#ifndef MLPACK_ANN_LOSS_FUNCTION_SOFT_MARGIN_LOSS_HPP
#define MLPACK_ANN_LOSS_FUNCTION_SOFT_MARGIN_LOSS_HPP
 
#include <mlpack/prereqs.hpp>
 
namespace mlpack {
namespace ann  {
 
template <
    typename InputDataType = arma::mat,
    typename OutputDataType = arma::mat
>
class SoftMarginLoss
{
 public:
  SoftMarginLoss(const bool reduction = true);
 
  template<typename InputType, typename TargetType>
  typename InputType::elem_type Forward(const InputType& input,
                                        const TargetType& target);
 
  template<typename InputType, typename TargetType, typename OutputType>
  void Backward(const InputType& input,
                const TargetType& target,
                OutputType& output);
 
  OutputDataType& OutputParameter() const { return outputParameter; }
  OutputDataType& OutputParameter() { return outputParameter; }
 
  bool Reduction() const { return reduction; }
  bool& Reduction() { return reduction; }
 
  template<typename Archive>
  void serialize(Archive& ar, const unsigned int /* version */);
 
 private:
  OutputDataType outputParameter;
 
  bool reduction;
}; // class SoftMarginLoss
 
} // namespace ann
} // namespace mlpack
 
// include implementation.
#include "soft_margin_loss_impl.hpp"
 
#endif