fastmks_model.hpp

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#ifndef MLPACK_METHODS_FASTMKS_FASTMKS_MODEL_HPP
#define MLPACK_METHODS_FASTMKS_FASTMKS_MODEL_HPP

#include <mlpack/prereqs.hpp>
#include "fastmks.hpp"
#include <mlpack/core/kernels/kernel_traits.hpp>
#include <mlpack/core/kernels/linear_kernel.hpp>
#include <mlpack/core/kernels/polynomial_kernel.hpp>
#include <mlpack/core/kernels/cosine_distance.hpp>
#include <mlpack/core/kernels/gaussian_kernel.hpp>
#include <mlpack/core/kernels/epanechnikov_kernel.hpp>
#include <mlpack/core/kernels/hyperbolic_tangent_kernel.hpp>
#include <mlpack/core/kernels/laplacian_kernel.hpp>
#include <mlpack/core/kernels/pspectrum_string_kernel.hpp>
#include <mlpack/core/kernels/spherical_kernel.hpp>
#include <mlpack/core/kernels/triangular_kernel.hpp>

namespace mlpack {
namespace fastmks {

class FastMKSModel
{
 public:
  enum KernelTypes
  {
    LINEAR_KERNEL,
    POLYNOMIAL_KERNEL,
    COSINE_DISTANCE,
    GAUSSIAN_KERNEL,
    EPANECHNIKOV_KERNEL,
    TRIANGULAR_KERNEL,
    HYPTAN_KERNEL
  };

  FastMKSModel(const int kernelType = LINEAR_KERNEL);

  FastMKSModel(const FastMKSModel& other);

  FastMKSModel(FastMKSModel&& other);

  FastMKSModel& operator=(const FastMKSModel& other);

  ~FastMKSModel();

  template<typename TKernelType>
  void BuildModel(arma::mat&& referenceData,
                  TKernelType& kernel,
                  const bool singleMode,
                  const bool naive,
                  const double base);

  bool Naive() const;
  bool& Naive();

  bool SingleMode() const;
  bool& SingleMode();

  int KernelType() const { return kernelType; }
  int& KernelType() { return kernelType; }

  void Search(const arma::mat& querySet,
              const size_t k,
              arma::Mat<size_t>& indices,
              arma::mat& kernels,
              const double base);

  void Search(const size_t k,
              arma::Mat<size_t>& indices,
              arma::mat& kernels);

  template<typename Archive>
  void serialize(Archive& ar, const unsigned int /* version */);

 private:
  int kernelType;

  FastMKS<kernel::LinearKernel>* linear;
  FastMKS<kernel::PolynomialKernel>* polynomial;
  FastMKS<kernel::CosineDistance>* cosine;
  FastMKS<kernel::GaussianKernel>* gaussian;
  FastMKS<kernel::EpanechnikovKernel>* epan;
  FastMKS<kernel::TriangularKernel>* triangular;
  FastMKS<kernel::HyperbolicTangentKernel>* hyptan;

  template<typename FastMKSType>
  void Search(FastMKSType& f,
              const arma::mat& querySet,
              const size_t k,
              arma::Mat<size_t>& indices,
              arma::mat& kernels,
              const double base);
};

} // namespace fastmks
} // namespace mlpack

#include "fastmks_model_impl.hpp"

#endif