00001 // $Id$ 00002 00003 /*********************************************************************** 00004 Moses - factored phrase-based language decoder 00005 Copyright (C) 2006 University of Edinburgh 00006 00007 This library is free software; you can redistribute it and/or 00008 modify it under the terms of the GNU Lesser General Public 00009 License as published by the Free Software Foundation; either 00010 version 2.1 of the License, or (at your option) any later version. 00011 00012 This library is distributed in the hope that it will be useful, 00013 but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 Lesser General Public License for more details. 00016 00017 You should have received a copy of the GNU Lesser General Public 00018 License along with this library; if not, write to the Free Software 00019 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 ***********************************************************************/ 00021 00022 #ifndef moses_LanguageModelMaxEntSRI_h 00023 #define moses_LanguageModelMaxEntSRI_h 00024 00025 #include <string> 00026 #include <vector> 00027 #include "moses/Factor.h" 00028 #include "moses/TypeDef.h" 00029 #include "SingleFactor.h" 00030 00031 class Factor; 00032 class Phrase; 00033 class Vocab; 00034 class MEModel; 00035 00036 namespace Moses 00037 { 00038 00041 class LanguageModelMaxEntSRI : public LanguageModelSingleFactor 00042 { 00043 protected: 00044 std::vector<unsigned int> m_lmIdLookup; 00045 ::Vocab *m_srilmVocab; 00046 MEModel *m_srilmModel; 00047 unsigned int m_unknownId; 00048 00049 LMResult GetValue(unsigned int wordId, unsigned int *context) const; 00050 void CreateFactors(); 00051 unsigned int GetLmID( const std::string &str ) const; 00052 unsigned int GetLmID( const Factor *factor ) const; 00053 00054 public: 00055 LanguageModelMaxEntSRI(const std::string &line); 00056 ~LanguageModelMaxEntSRI(); 00057 void Load(AllOptions::ptr const& opts); 00058 00059 virtual LMResult GetValue(const std::vector<const Word*> &contextFactor, State* finalState = 0) const; 00060 }; 00061 00062 00063 } 00064 #endif