regularized_svd_method.hpp

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#ifndef MLPACK_METHODS_CF_DECOMPOSITION_POLICIES_REGULARIZED_SVD_METHOD_HPP
#define MLPACK_METHODS_CF_DECOMPOSITION_POLICIES_REGULARIZED_SVD_METHOD_HPP

#include <mlpack/prereqs.hpp>
#include <mlpack/methods/regularized_svd/regularized_svd.hpp>

namespace mlpack {
namespace cf {

class RegSVDPolicy
{
 public:
  RegSVDPolicy(const size_t maxIterations = 10) :
      maxIterations(maxIterations)
  {
    /* Nothing to do here */
  }

  void Apply(const arma::mat& data,
             const arma::sp_mat& /* cleanedData */,
             const size_t rank,
             arma::mat& w,
             arma::mat& h,
             const size_t maxIterations,
             const double /* minResidue */,
             const bool /* mit */)
  {
    // Do singular value decomposition using the regularized SVD algorithm.
    svd::RegularizedSVD<> regsvd(maxIterations);
    regsvd.Apply(data, rank, w, h);
  }

  size_t MaxIterations() const { return maxIterations; }
  size_t& MaxIterations() { return maxIterations; }

 private:
  size_t maxIterations;
};

} // namespace cf
} // namespace mlpack

#endif