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f40e1ac8f8
Currently, the code compiles, but has not been run or tested.
Steps to compile with maxent LM are below:
- Download SRILM 1.6.0
- Download the maxent patch from
http://www.phon.ioc.ee/~tanela/srilm-me/srilm-1.6.0-me.patch
- Download the required libLBFGS library from
http://www.chokkan.org/software/liblbfgs
- Edit SRILM's sbin/machine-type script
to return MACHINE_TYPE=i686-m64 for case x86_64
- Compile libLBFGS and install it in the /tools/SRILM/SRILM-1.7.0 directory.
Make sure that the liblbfgs.* library files are in /tools/SRILM/SRILM-1.7.0/lib//
- In the /tools/SRILM/SRILM-1.7.0 dir, apply the maxent patch to SRILM:
patch -p1 < srilm-1.6.0-me.patch
- Point the appropriate SRILM makefile
to see libLBFGS's include and lib dirs, following the instructions at:
http://www.phon.ioc.ee/dokuwiki/doku.php?id=people:tanel:srilm-me.en
- Compile SRILM
- Compile Moses using --with-srilm and --with-maxent-srilm:
./bjam --with-srilm=/tools/SRILM/SRILM-1.7.0 --with-maxent-srilm=true
NOTE: The above steps were for my original integration.
Current versions of SRILM (such as 1.7.1) include the maxent patch.
As such, it should be sufficient to compile a current version of SRILM
with support form maxent enabled,
and then compile Moses using --with-srilm and --with-maxent-srilm:
./bjam --with-srilm=/tools/SRILM/SRILM-1.7.0 --with-maxent-srilm=true
65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
// $Id$
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/***********************************************************************
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Moses - factored phrase-based language decoder
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Copyright (C) 2006 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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#ifndef moses_LanguageModelMaxEntSRI_h
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#define moses_LanguageModelMaxEntSRI_h
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#include <string>
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#include <vector>
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#include "moses/Factor.h"
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#include "moses/TypeDef.h"
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#include "SingleFactor.h"
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class Factor;
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class Phrase;
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class Vocab;
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class MEModel;
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namespace Moses
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{
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/** Implementation of maximum entropy LM using SRILM's code.
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*/
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class LanguageModelMaxEntSRI : public LanguageModelSingleFactor
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{
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protected:
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std::vector<unsigned int> m_lmIdLookup;
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::Vocab *m_srilmVocab;
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MEModel *m_srilmModel;
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unsigned int m_unknownId;
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LMResult GetValue(unsigned int wordId, unsigned int *context) const;
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void CreateFactors();
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unsigned int GetLmID( const std::string &str ) const;
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unsigned int GetLmID( const Factor *factor ) const;
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public:
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LanguageModelMaxEntSRI(const std::string &line);
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~LanguageModelMaxEntSRI();
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void Load();
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virtual LMResult GetValue(const std::vector<const Word*> &contextFactor, State* finalState = 0) const;
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};
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}
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#endif
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