pelleg_moore_kmeans.hpp

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#ifndef MLPACK_METHODS_KMEANS_PELLEG_MOORE_KMEANS_HPP
#define MLPACK_METHODS_KMEANS_PELLEG_MOORE_KMEANS_HPP

#include <mlpack/core/tree/binary_space_tree.hpp>
#include "pelleg_moore_kmeans_statistic.hpp"

namespace mlpack {
namespace kmeans {

template<typename MetricType, typename MatType>
class PellegMooreKMeans
{
 public:
  PellegMooreKMeans(const MatType& dataset, MetricType& metric);

  ~PellegMooreKMeans();

  double Iterate(const arma::mat& centroids,
                 arma::mat& newCentroids,
                 arma::Col<size_t>& counts);

  size_t DistanceCalculations() const { return distanceCalculations; }
  size_t& DistanceCalculations() { return distanceCalculations; }

  typedef tree::KDTree<MetricType, PellegMooreKMeansStatistic, MatType>
      TreeType;

 private:
  const MatType& datasetOrig; // Maybe not necessary.
  TreeType* tree;
  const MatType& dataset;
  MetricType& metric;

  size_t distanceCalculations;
};

} // namespace kmeans
} // namespace mlpack

#include "pelleg_moore_kmeans_impl.hpp"

#endif