mosesdecoder/moses2/parameters/LMBR_Options.h

// -*- mode: c++; indent-tabs-mode: nil; tab-width: 2 -*-
#pragma once
#include <string>
#include <vector>
#include "OptionsBaseClass.h"

namespace Moses2
{

// Options for mimum bayes risk decoding
struct
    LMBR_Options : public OptionsBaseClass {
  bool enabled;
  bool use_lattice_hyp_set; //! to use nbest as hypothesis set during lattice MBR
  float precision; //! unigram precision theta - see Tromble et al 08 for more details
  float ratio;     //! decaying factor for ngram thetas - see Tromble et al 08
  float map_weight; //! Weight given to the map solution. See Kumar et al 09
  size_t pruning_factor; //! average number of nodes per word wanted in pruned lattice
  std::vector<float> theta; //! theta(s) for lattice mbr calculation
  bool init(Parameter const& param);
  LMBR_Options();
};

}