mosesdecoder/moses/ChartTranslationOptionList.h
2013-05-29 18:16:15 +01:00

80 lines
2.2 KiB
C++

/***********************************************************************
Moses - factored phrase-based language decoder
Copyright (C) 2006 University of Edinburgh
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
***********************************************************************/
#pragma once
#include "ChartTranslationOptions.h"
#include "ChartParserCallback.h"
#include "StackVec.h"
#include <vector>
namespace Moses
{
class TargetPhraseCollection;
class WordsRange;
//! a vector of translations options for a specific range, in a specific sentence
class ChartTranslationOptionList : public ChartParserCallback
{
public:
ChartTranslationOptionList(size_t);
~ChartTranslationOptionList();
const ChartTranslationOptions &Get(size_t i) const {
return *m_collection[i];
}
//! number of translation options
size_t GetSize() const {
return m_size;
}
void Add(const TargetPhraseCollection &, const StackVec &,
const WordsRange &);
void AddPhraseOOV(TargetPhrase &phrase, std::list<TargetPhraseCollection*> &waste_memory, const WordsRange &range);
bool Empty() const {
return m_size == 0;
}
void Clear();
void ApplyThreshold();
private:
typedef std::vector<ChartTranslationOptions*> CollType;
struct ScoreThresholdPred {
ScoreThresholdPred(float threshold) : m_thresholdScore(threshold) {}
bool operator()(const ChartTranslationOptions *option) {
return option->GetEstimateOfBestScore() >= m_thresholdScore;
}
float m_thresholdScore;
};
CollType m_collection;
size_t m_size;
float m_scoreThreshold;
const size_t m_ruleLimit;
};
}