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https://github.com/moses-smt/mosesdecoder.git
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149 lines
3.9 KiB
C
149 lines
3.9 KiB
C
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/***********************************************************************
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Moses - statistical machine translation system
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Copyright (C) 2006-2011 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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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <vector>
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namespace Moses
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{
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class ChartCellCollection;
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class ChartHypothesis;
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class ChartManager;
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class ChartTranslationOption;
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class CoveredChartSpan;
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class TargetPhrase;
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typedef std::vector<const ChartHypothesis*> HypoList;
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// wrapper around list of target phrase translation options
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class TranslationDimension
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{
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public:
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TranslationDimension(size_t pos,
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const std::vector<TargetPhrase*> &orderedTargetPhrases)
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: m_pos(pos)
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, m_orderedTargetPhrases(&orderedTargetPhrases)
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{}
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size_t IncrementPos() { return m_pos++; }
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bool HasMoreTranslations() const {
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return m_pos+1 < m_orderedTargetPhrases->size();
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}
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const TargetPhrase *GetTargetPhrase() const {
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return (*m_orderedTargetPhrases)[m_pos];
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}
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bool operator<(const TranslationDimension &compare) const {
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return GetTargetPhrase() < compare.GetTargetPhrase();
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}
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bool operator==(const TranslationDimension &compare) const {
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return GetTargetPhrase() == compare.GetTargetPhrase();
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}
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private:
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size_t m_pos;
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const std::vector<TargetPhrase*> *m_orderedTargetPhrases;
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};
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// wrapper around list of hypotheses for a particular non-term of a trans opt
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class HypothesisDimension
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{
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public:
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HypothesisDimension(size_t pos, const HypoList &orderedHypos)
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: m_pos(pos)
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, m_orderedHypos(&orderedHypos)
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{}
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size_t IncrementPos() { return m_pos++; }
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bool HasMoreHypo() const {
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return m_pos+1 < m_orderedHypos->size();
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}
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const ChartHypothesis *GetHypothesis() const {
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return (*m_orderedHypos)[m_pos];
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}
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bool operator<(const HypothesisDimension &compare) const {
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return GetHypothesis() < compare.GetHypothesis();
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}
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bool operator==(const HypothesisDimension &compare) const {
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return GetHypothesis() == compare.GetHypothesis();
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}
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private:
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size_t m_pos;
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const HypoList *m_orderedHypos;
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};
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#ifdef HAVE_BOOST
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std::size_t hash_value(const HypothesisDimension &);
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#endif
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class RuleCubeItem
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{
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public:
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RuleCubeItem(const ChartTranslationOption &, const ChartCellCollection &);
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RuleCubeItem(const RuleCubeItem &, int);
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~RuleCubeItem();
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const TranslationDimension &GetTranslationDimension() const {
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return m_translationDimension;
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}
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const std::vector<HypothesisDimension> &GetHypothesisDimensions() const {
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return m_hypothesisDimensions;
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}
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float GetScore() const { return m_score; }
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void EstimateScore();
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void CreateHypothesis(const ChartTranslationOption &, ChartManager &);
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ChartHypothesis *ReleaseHypothesis();
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bool operator<(const RuleCubeItem &) const;
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private:
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RuleCubeItem(const RuleCubeItem &); // Not implemented
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RuleCubeItem &operator=(const RuleCubeItem &); // Not implemented
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void CreateHypothesisDimensions(const CoveredChartSpan *,
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const ChartCellCollection &);
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TranslationDimension m_translationDimension;
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std::vector<HypothesisDimension> m_hypothesisDimensions;
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ChartHypothesis *m_hypothesis;
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float m_score;
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};
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}
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