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101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
/***********************************************************************
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Moses - factored phrase-based language decoder
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Copyright (C) 2011 University of Edinburgh
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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***********************************************************************/
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#pragma once
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#ifndef moses_ChartRuleLookupManagerMemory_h
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#define moses_ChartRuleLookupManagerMemory_h
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#include <vector>
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#include "ChartRuleLookupManagerCYKPlus.h"
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#include "CompletedRuleCollection.h"
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#include "moses/NonTerminal.h"
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#include "moses/TranslationModel/PhraseDictionaryMemory.h"
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#include "moses/TranslationModel/PhraseDictionaryNodeMemory.h"
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#include "moses/StackVec.h"
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namespace Moses
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{
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class ChartParserCallback;
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class WordsRange;
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//! Implementation of ChartRuleLookupManager for in-memory rule tables.
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class ChartRuleLookupManagerMemory : public ChartRuleLookupManagerCYKPlus
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{
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public:
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typedef std::vector<ChartCellCache> CompressedColumn;
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typedef std::vector<CompressedColumn> CompressedMatrix;
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ChartRuleLookupManagerMemory(const ChartParser &parser,
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const ChartCellCollectionBase &cellColl,
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const PhraseDictionaryMemory &ruleTable);
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~ChartRuleLookupManagerMemory() {};
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virtual void GetChartRuleCollection(
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const InputPath &inputPath,
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size_t lastPos, // last position to consider if using lookahead
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ChartParserCallback &outColl);
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private:
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void GetTerminalExtension(
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const PhraseDictionaryNodeMemory *node,
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size_t pos);
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void GetNonTerminalExtension(
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const PhraseDictionaryNodeMemory *node,
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size_t startPos);
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void AddAndExtend(
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const PhraseDictionaryNodeMemory *node,
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size_t endPos);
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void UpdateCompressedMatrix(size_t startPos,
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size_t endPos,
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size_t lastPos);
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const PhraseDictionaryMemory &m_ruleTable;
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// permissible soft nonterminal matches (target side)
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bool m_isSoftMatching;
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const std::vector<std::vector<Word> >& m_softMatchingMap;
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// temporary storage of completed rules (one collection per end position; all rules collected consecutively start from the same position)
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std::vector<CompletedRuleCollection> m_completedRules;
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size_t m_lastPos;
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size_t m_unaryPos;
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StackVec m_stackVec;
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std::vector<float> m_stackScores;
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std::vector<const Word*> m_sourceWords;
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ChartParserCallback* m_outColl;
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std::vector<CompressedMatrix> m_compressedMatrixVec;
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};
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} // namespace Moses
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#endif
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