mean_absolute_percentage_error.hpp

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#ifndef MLPACK_METHODS_ANN_LOSS_FUNCTION_MEAN_ABSOLUTE_PERCENTAGE_ERROR_HPP
#define MLPACK_METHODS_ANN_LOSS_FUNCTION_MEAN_ABSOLUTE_PERCENTAGE_ERROR_HPP
 
#include <mlpack/prereqs.hpp>
 
namespace mlpack {
namespace ann  {
 
template <
    typename InputDataType = arma::mat,
    typename OutputDataType = arma::mat
>
class MeanAbsolutePercentageError
{
 public:
  MeanAbsolutePercentageError();
 
  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; }
 
  template<typename Archive>
  void serialize(Archive& ar, const unsigned int /* version */);
 
 private:
  OutputDataType outputParameter;
}; // class MeanAbsolutePercentageError
 
} // namespace ann
} // namespace mlpack
 
// Include implementation.
#include "mean_absolute_percentage_error_impl.hpp"
 
#endif