mirror of
https://github.com/moses-smt/mosesdecoder.git
synced 2024-12-28 22:45:50 +03:00
129 lines
3.7 KiB
C++
129 lines
3.7 KiB
C++
// $Id$
|
|
// vim:tabstop=2
|
|
|
|
/***********************************************************************
|
|
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
|
|
***********************************************************************/
|
|
|
|
#include "TranslationOption.h"
|
|
#include "Bitmap.h"
|
|
#include "GenerationDictionary.h"
|
|
#include "StaticData.h"
|
|
#include "InputType.h"
|
|
#include "moses/FF/LexicalReordering/LexicalReordering.h"
|
|
|
|
using namespace std;
|
|
|
|
namespace Moses
|
|
{
|
|
|
|
TranslationOption::TranslationOption()
|
|
:m_targetPhrase(NULL)
|
|
,m_inputPath(NULL)
|
|
,m_sourceWordsRange(NOT_FOUND, NOT_FOUND)
|
|
{ }
|
|
|
|
//TODO this should be a factory function!
|
|
TranslationOption::TranslationOption(const Range &range
|
|
, const TargetPhrase &targetPhrase)
|
|
: m_targetPhrase(targetPhrase)
|
|
, m_inputPath(NULL)
|
|
, m_sourceWordsRange(range)
|
|
, m_futureScore(targetPhrase.GetFutureScore())
|
|
{
|
|
}
|
|
|
|
bool TranslationOption::IsCompatible(const Phrase& phrase, const std::vector<FactorType>& featuresToCheck) const
|
|
{
|
|
if (featuresToCheck.size() == 1) {
|
|
return m_targetPhrase.IsCompatible(phrase, featuresToCheck[0]);
|
|
} else if (featuresToCheck.empty()) {
|
|
return true;
|
|
/* features already there, just update score */
|
|
} else {
|
|
return m_targetPhrase.IsCompatible(phrase, featuresToCheck);
|
|
}
|
|
}
|
|
|
|
bool TranslationOption::Overlap(const Hypothesis &hypothesis) const
|
|
{
|
|
const Bitmap &bitmap = hypothesis.GetWordsBitmap();
|
|
return bitmap.Overlap(GetSourceWordsRange());
|
|
}
|
|
|
|
void
|
|
TranslationOption::
|
|
CacheLexReorderingScores(const LexicalReordering &producer, const Scores &score)
|
|
{
|
|
if (score.empty()) return;
|
|
boost::shared_ptr<Scores> stored(new Scores(score));
|
|
m_targetPhrase.SetExtraScores(&producer,stored);
|
|
// m_lexReorderingScores[&producer] = score;
|
|
}
|
|
|
|
void TranslationOption::EvaluateWithSourceContext(const InputType &input)
|
|
{
|
|
const InputPath &inputPath = GetInputPath();
|
|
m_targetPhrase.EvaluateWithSourceContext(input, inputPath);
|
|
}
|
|
|
|
const InputPath &TranslationOption::GetInputPath() const
|
|
{
|
|
UTIL_THROW_IF2(m_inputPath == NULL,
|
|
"No input path");
|
|
return *m_inputPath;
|
|
}
|
|
|
|
void TranslationOption::SetInputPath(const InputPath &inputPath)
|
|
{
|
|
UTIL_THROW_IF2(m_inputPath,
|
|
"Input path already specified");
|
|
m_inputPath = &inputPath;
|
|
}
|
|
|
|
|
|
TO_STRING_BODY(TranslationOption);
|
|
|
|
// friend
|
|
ostream& operator<<(ostream& out, const TranslationOption& possibleTranslation)
|
|
{
|
|
out << possibleTranslation.GetTargetPhrase()
|
|
<< " c=" << possibleTranslation.GetFutureScore()
|
|
<< " [" << possibleTranslation.GetSourceWordsRange() << "]"
|
|
<< possibleTranslation.GetScoreBreakdown();
|
|
return out;
|
|
}
|
|
|
|
/** returns cached scores */
|
|
const Scores*
|
|
TranslationOption::
|
|
GetLexReorderingScores(LexicalReordering const* scoreProducer) const
|
|
{
|
|
return m_targetPhrase.GetExtraScores(scoreProducer);
|
|
// _ScoreCacheMap::const_iterator it;
|
|
// it = m_lexReorderingScores.find(scoreProducer);
|
|
// if(it == m_lexReorderingScores.end())
|
|
// return NULL;
|
|
// else
|
|
// return &(it->second);
|
|
}
|
|
|
|
}
|
|
|
|
|