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// $Id$
/***********************************************************************
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
***********************************************************************/
#pragma once
#include <list>
#include <limits>
#define PROJECT_NAME "moses"
#define SENTENCE_START "<s>"
#define SENTENCE_END "</s>"
#define UNKNOWN_FACTOR "UNK"
#define NOT_FOUND std::numeric_limits<size_t>::max()
#define MAX_NGRAM_SIZE 20
const size_t DEFAULT_MAX_HYPOSTACK_SIZE = 200;
const size_t ARRAY_SIZE_INCR = 20; //amount by which a hypostack gets resized when necessary
const float LOWEST_SCORE = -100.0f;
const float DEFAULT_BEAM_THRESHOLD = 0.00001f;
const size_t DEFAULT_VERBOSE_LEVEL = 1;
/////////////////////////////////////////////////
// for those using autoconf/automake
#if HAVE_CONFIG_H
#include "config.h"
#define TRACE_ENABLE 1 // REMOVE after we figure this out
#define N_BEST 1 // REMOVE
# ifdef HAVE_SRILM
# define LM_SRI 1
# undef LM_INTERNAL
# else
# undef LM_SRI
# define LM_INTERNAL 1
# endif
# ifdef HAVE_IRSTLM
# define LM_IRST 1
# undef LM_INTERNAL
# undef LM_SRI
# endif
#endif
/////////////////////////////////////////////////
class NGramNode;
union LmId {
unsigned int sri;
const NGramNode* internal;
int irst;
public:
LmId() {};
LmId(int i) { irst = i; };
};
// enums.
// must be 0, 1, 2, ..., unless otherwise stated
// can only be 2 at the moment
const int NUM_LANGUAGES = 2;
enum FactorType
{
Surface = 0
,POS = 1
,Stem = 2
,Morphology = 3
};
// count of above
const size_t NUM_FACTORS = 4;
enum FactorDirection
{
Input = 0
,Output = 1
};
enum DecodeType
{
Translate
,Generate
,InsertNullFertilityWord //! an optional step that attempts to insert a few closed-class words to improve LM scores
};
namespace ScoreType {
enum ScoreType
{
PhraseTrans = 0,
Generation,
LanguageModelScore,
Distortion,
WordPenalty,
FutureScoreEnum,
LexicalReordering,
Total
};
}
// count of above
const size_t NUM_SCORES = 8;
namespace LexReorderType
{
enum LexReorderType
{
Monotone //TODO what the jiggers do these symbols mean?
,Msd
,Forward
,Backward
,Bidirectional
,Fe
,F
};
}
enum IOMethod
{
IOMethodCommandLine
,IOMethodFile
,IOMethodMySQL
};
enum LMListType
{
Initial
,Other
};
// typedef
class Factor;
typedef const Factor * FactorArray[NUM_FACTORS];
class LanguageModel;
typedef std::list < LanguageModel* > LMList;
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