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72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
/***********************************************************************
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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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#include "moses/TranslationModel/PhraseDictionary.h"
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#include "moses/InputType.h"
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#include "moses/NonTerminal.h"
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#include "PhraseDictionaryNodeMemory.h"
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#include "moses/TranslationModel/RuleTable/Trie.h"
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namespace Moses
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{
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/** Implementation of a SCFG rule table in a trie. Looking up a rule of
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* length n symbols requires n look-ups to find the TargetPhraseCollection.
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*/
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class PhraseDictionaryMemory : public RuleTableTrie
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{
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friend std::ostream& operator<<(std::ostream&, const PhraseDictionaryMemory&);
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friend class RuleTableLoader;
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protected:
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PhraseDictionaryMemory(const std::string &description, const std::string &line)
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: RuleTableTrie(description, line)
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{}
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public:
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PhraseDictionaryMemory(const std::string &line)
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: RuleTableTrie("PhraseDictionaryMemory", line)
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{}
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const PhraseDictionaryNodeMemory &GetRootNode() const { return m_collection; }
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ChartRuleLookupManager *CreateRuleLookupManager(
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const InputType &,
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const ChartCellCollectionBase &);
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TO_STRING();
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protected:
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TargetPhraseCollection &GetOrCreateTargetPhraseCollection(
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const Phrase &source, const TargetPhrase &target, const Word *sourceLHS);
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const TargetPhraseCollection *GetTargetPhraseCollection(const Phrase& source) const;
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PhraseDictionaryNodeMemory &GetOrCreateNode(const Phrase &source
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, const TargetPhrase &target
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, const Word *sourceLHS);
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void SortAndPrune();
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PhraseDictionaryNodeMemory m_collection;
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};
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} // namespace Moses
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