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// $Id$
// vim:tabstop=2
/***********************************************************************
Moses - factored phrase-based language decoder
Copyright (C) 2010 Hieu Hoang
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 <vector>
#include "InputType.h"
#include "DecodeGraph.h"
#include "ChartTranslationOptionList.h"
#include "ChartRuleLookupManager.h"
namespace Moses
{
class DecodeGraph;
class Word;
class ChartTranslationOption;
class DottedRule;
class WordPenaltyProducer;
class ChartCellCollection;
class ChartTranslationOptionCollection
{
friend std::ostream& operator<<(std::ostream&, const ChartTranslationOptionCollection&);
protected:
const InputType &m_source;
const TranslationSystem* m_system;
std::vector <DecodeGraph*> m_decodeGraphList;
const ChartCellCollection &m_hypoStackColl;
const std::vector<ChartRuleLookupManager*> &m_ruleLookupManagers;
std::vector< std::vector< ChartTranslationOptionList > > m_collection; /*< contains translation options */
std::vector<Phrase*> m_unksrcs;
std::list<TargetPhraseCollection*> m_cacheTargetPhraseCollection;
std::list<std::vector<DottedRule*>* > m_dottedRuleCache;
// for adding 1 trans opt in unknown word proc
void Add(ChartTranslationOption *transOpt, size_t pos);
ChartTranslationOptionList &GetTranslationOptionList(size_t startPos, size_t endPos);
const ChartTranslationOptionList &GetTranslationOptionList(size_t startPos, size_t endPos) const;
void ProcessUnknownWord(size_t startPos, size_t endPos);
// taken from ChartTranslationOptionCollectionText.
void ProcessUnknownWord(size_t sourcePos);
//! special handling of ONE unknown words.
virtual void ProcessOneUnknownWord(const Word &sourceWord
, size_t sourcePos, size_t length = 1);
//! pruning: only keep the top n (m_maxNoTransOptPerCoverage) elements */
void Prune(size_t startPos, size_t endPos);
//! sort all trans opt in each list for cube pruning */
void Sort(size_t startPos, size_t endPos);
public:
ChartTranslationOptionCollection(InputType const& source
, const TranslationSystem* system
, const ChartCellCollection &hypoStackColl
, const std::vector<ChartRuleLookupManager*> &ruleLookupManagers);
virtual ~ChartTranslationOptionCollection();
void CreateTranslationOptionsForRange(size_t startPos
, size_t endPos);
const ChartTranslationOptionList &GetTranslationOptionList(const WordsRange &range) const {
return GetTranslationOptionList(range.GetStartPos(), range.GetEndPos());
}
};
}
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