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Diffstat (limited to 'moses/src/LM/RandLM.h')
-rw-r--r--moses/src/LM/RandLM.h71
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diff --git a/moses/src/LM/RandLM.h b/moses/src/LM/RandLM.h
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-/***********************************************************************
-Moses - factored phrase-based language decoder
-Copyright (C) 2006 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
-***********************************************************************/
-
-#ifndef moses_LanguageModelRandLM_h
-#define moses_LanguageModelRandLM_h
-
-#include <string>
-#include <vector>
-#include "Factor.h"
-#include "Util.h"
-#include "LM/SingleFactor.h"
-#include "RandLM.h"
-
-class randlm::RandLM;
-
-namespace Moses
-{
-class Factor;
-class Phrase;
-
-// RandLM wrapper (single factor LM)
-
-class LanguageModelRandLM : public LanguageModelPointerState
-{
-public:
- LanguageModelRandLM()
- : m_lm(0) {}
- bool Load(const std::string &filePath, FactorType factorType, size_t nGramOrder);
- virtual LMResult GetValue(const std::vector<const Word*> &contextFactor, State* finalState = NULL) const;
- ~LanguageModelRandLM() {
- delete m_lm;
- }
- void CleanUpAfterSentenceProcessing() {
- m_lm->clearCaches(); // clear caches
- }
- void InitializeBeforeSentenceProcessing() {
- m_lm->initThreadSpecificData(); // Creates thread specific data iff
- // compiled with multithreading.
- }
-protected:
- std::vector<randlm::WordID> m_randlm_ids_vec;
- randlm::RandLM* m_lm;
- randlm::WordID m_oov_id;
- void CreateFactors(FactorCollection &factorCollection);
- randlm::WordID GetLmID( const std::string &str ) const;
- randlm::WordID GetLmID( const Factor *factor ) const {
- size_t factorId = factor->GetId();
- return ( factorId >= m_randlm_ids_vec.size()) ? m_oov_id : m_randlm_ids_vec[factorId];
- };
-
-};
-
-}
-
-#endif