refined_start.hpp

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#ifndef MLPACK_METHODS_KMEANS_REFINED_START_HPP
#define MLPACK_METHODS_KMEANS_REFINED_START_HPP

#include <mlpack/prereqs.hpp>

namespace mlpack {
namespace kmeans {

class RefinedStart
{
 public:
  RefinedStart(const size_t samplings = 100,
               const double percentage = 0.02) :
      samplings(samplings), percentage(percentage) { }

  template<typename MatType>
  void Cluster(const MatType& data,
               const size_t clusters,
               arma::mat& centroids) const;

  template<typename MatType>
  void Cluster(const MatType& data,
               const size_t clusters,
               arma::Row<size_t>& assignments) const;

  size_t Samplings() const { return samplings; }
  size_t& Samplings() { return samplings; }

  double Percentage() const { return percentage; }
  double& Percentage() { return percentage; }

  template<typename Archive>
  void serialize(Archive& ar, const unsigned int /* version */)
  {
    ar & BOOST_SERIALIZATION_NVP(samplings);
    ar & BOOST_SERIALIZATION_NVP(percentage);
  }

 private:
  size_t samplings;
  double percentage;
};

} // namespace kmeans
} // namespace mlpack

// Include implementation.
#include "refined_start_impl.hpp"

#endif