mosesdecoder/moses/TranslationModel/CYKPlusParser/ChartRuleLookupManagerSkeleton.h
Rico Sennrich 45630a5851 various optimizations to make CYK+ parser several times faster and eat less memory.
speed-up of decoding depends on how much time is spent in parser:
10-50% speed-up for string-to-tree systems observed (more on long sentences and with high max-chart-span).

if you only use hiero or string-to-tree models (but none with source syntax), use compile-option --unlabelled-source for (small) efficiency gains.
2014-03-21 11:12:24 +00:00

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/***********************************************************************
Moses - factored phrase-based language decoder
Copyright (C) 2011 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 <vector>
#include "moses/ChartRuleLookupManager.h"
#include "moses/StackVec.h"
namespace Moses
{
class TargetPhraseCollection;
class ChartParserCallback;
class DottedRuleColl;
class WordsRange;
class SkeletonPT;
class ChartRuleLookupManagerSkeleton : public ChartRuleLookupManager
{
public:
ChartRuleLookupManagerSkeleton(const ChartParser &parser,
const ChartCellCollectionBase &cellColl,
const SkeletonPT &skeletonPt);
~ChartRuleLookupManagerSkeleton();
virtual void GetChartRuleCollection(
const WordsRange &range,
size_t last,
ChartParserCallback &outColl);
private:
TargetPhrase *CreateTargetPhrase(const Word &sourceWord) const;
StackVec m_stackVec;
std::vector<TargetPhraseCollection*> m_tpColl;
const SkeletonPT &m_skeletonPT;
};
} // namespace Moses