frequencyCost.h

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// Copyright 2002-2013 CEA LIST
// SPDX-FileCopyrightText: 2022 CEA LIST <gael.de-chalendar@cea.fr>
//
// SPDX-License-Identifier: MIT
 
#ifndef LIMA_POSTAGGER_FREQUENCYCOST_H
#define LIMA_POSTAGGER_FREQUENCYCOST_H
 
#include "PosTaggerExport.h"
#include "ngramMatrices.h"
#include <iostream>
 
namespace Lima
{
namespace LinguisticProcessing
{
namespace PosTagger
{
 
class LIMA_POSTAGGER_EXPORT FrequencyCost
{
 
  friend LIMA_POSTAGGER_EXPORT std::ostream& operator<<(std::ostream& out,const FrequencyCost& cost);
 
public:
  FrequencyCost();
 
  FrequencyCost(
    uint64_t nbtrigrams,
    uint64_t nbbigrams,
    uint64_t nbunigrams,
    float trigramproba,
    float bigramproba);
 
//  FrequencyCost(const FrequencyCost& fc);
 
  virtual ~FrequencyCost();
 
  bool operator<(const FrequencyCost& fc) const;
  bool operator==(const FrequencyCost& fc) const;
  FrequencyCost operator+(const FrequencyCost& fc) const;
  FrequencyCost& operator+=(const FrequencyCost& fc);
 
  inline bool operator!=(const FrequencyCost& fc) const { return !(operator==(fc));}
 
private:
 
  uint64_t m_nbtrigrams;
  uint64_t m_nbbigrams;
  uint64_t m_nbunigrams;
 
  float m_trigramproba;
  float m_bigramproba;
 
};
 
 
class LIMA_POSTAGGER_EXPORT FrequencyCostFunction
{
public:
 
  FrequencyCostFunction(
    const TrigramMatrix* trigrams,
    const BigramMatrix* bigrams);
 
  FrequencyCostFunction(
    const FrequencyCostFunction& cf);
 
  virtual ~FrequencyCostFunction();
 
  FrequencyCost operator()(LinguisticCode cat1, LinguisticCode cat2, LinguisticCode cat3) const;
 
  inline FrequencyCost getMinimumCost() const { return m_minimumCost; }
 
  inline FrequencyCost getMaximumCost() const { return m_maximumCost; }
 
private:
 
  const TrigramMatrix* m_trigrams;
  const BigramMatrix* m_bigrams;
 
  static FrequencyCost m_minimumCost;
  static FrequencyCost m_maximumCost;
 
};
 
} // PosTagger
} // LinguisticProcessing
} // Lima
 
#endif