Moses::TrellisPath Class Reference

#include <TrellisPath.h>

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List of all members.

Public Member Functions

 TrellisPath ()
 TrellisPath (const Hypothesis *hypo)
 create path OF pure hypo
 TrellisPath (const TrellisPath &copy, size_t edgeIndex, const Hypothesis *arc)
float GetTotalScore () const
 get score for this path throught trellis
const std::vector< const
Hypothesis * > & 		GetEdges () const
void CreateDeviantPaths (TrellisPathCollection &pathColl) const
 create a set of next best paths by wiggling 1 of the node at a time.
void CreateDeviantPaths (TrellisPathList &pathColl) const
 create a list of next best paths by wiggling 1 of the node at a time.
const ScoreComponentCollection & GetScoreBreakdown () const
WordsRange GetTargetWordsRange (const Hypothesis &hypo) const
 get target words range of the hypo within n-best trellis. not necessarily the same as hypo.GetCurrTargetWordsRange()
Phrase GetTargetPhrase () const
Phrase GetSurfacePhrase () const
 TO_STRING ()

Protected Member Functions

 TrellisPath (const std::vector< const Hypothesis * > edges)
void InitScore ()

Protected Attributes

std::vector< const Hypothesis * > m_path
size_t m_prevEdgeChanged
ScoreComponentCollection m_scoreBreakdown
float m_totalScore

Friends

class Manager
std::ostream & operator<< (std::ostream &, const TrellisPath &)

Detailed Description

Encapsulate the set of hypotheses/arcs that goes from decoding 1 phrase to all the source phrases to reach a final translation. For the best translation, this consist of all hypotheses, for the other n-best paths, the node on the path can consist of hypotheses or arcs

Definition at line 41 of file TrellisPath.h.

Constructor & Destructor Documentation

Moses::TrellisPath::TrellisPath ( const std::vector< const Hypothesis * >  edges  )  [protected]

Moses::TrellisPath::TrellisPath (  ) 

Referenced by CreateDeviantPaths().

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Moses::TrellisPath::TrellisPath ( const Hypothesis *  hypo  ) 

create path OF pure hypo

Definition at line 31 of file TrellisPath.cpp.

References Moses::Hypothesis::GetPrevHypo(), Moses::Hypothesis::GetScoreBreakdown(), Moses::Hypothesis::GetTotalScore(), m_path, m_scoreBreakdown, m_totalScore, and NULL.

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Moses::TrellisPath::TrellisPath ( const TrellisPath &  copy,
size_t  edgeIndex,
const Hypothesis *  arc 
)

create path from another path, deviate at edgeIndex by using arc instead, which may change other hypo back from there

Definition at line 63 of file TrellisPath.cpp.

References Moses::Hypothesis::GetPrevHypo(), InitScore(), m_path, and NULL.

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Member Function Documentation

void Moses::TrellisPath::CreateDeviantPaths ( TrellisPathList &  pathColl  )  const

create a list of next best paths by wiggling 1 of the node at a time.

Definition at line 135 of file TrellisPath.cpp.

References Moses::TrellisPathList::Add(), Moses::Hypothesis::GetArcList(), m_path, m_prevEdgeChanged, NOT_FOUND, and TrellisPath().

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void Moses::TrellisPath::CreateDeviantPaths ( TrellisPathCollection &  pathColl  )  const

create a set of next best paths by wiggling 1 of the node at a time.

Definition at line 96 of file TrellisPath.cpp.

References Moses::TrellisPathCollection::Add(), Moses::Hypothesis::GetArcList(), m_path, m_prevEdgeChanged, NOT_FOUND, and TrellisPath().

Referenced by Moses::Manager::CalcNBest().

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const std::vector<const Hypothesis *>& Moses::TrellisPath::GetEdges (  )  const [inline]

list of each hypo/arcs in path. For anything other than the best hypo, it is not possible just to follow the m_prevHypo variable in the hypothesis object

Definition at line 80 of file TrellisPath.h.

References m_path.

Referenced by GetOutputFactors(), GetOutputWords(), LatticeMBRSolution::LatticeMBRSolution(), OutputAlignment(), OutputBestHypo(), and OutputNBest().

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const ScoreComponentCollection& Moses::TrellisPath::GetScoreBreakdown (  )  const [inline]

Definition at line 90 of file TrellisPath.h.

References m_scoreBreakdown.

Referenced by doMBR(), Moses::operator<<(), and OutputNBest().

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Phrase Moses::TrellisPath::GetSurfacePhrase (  )  const

Definition at line 190 of file TrellisPath.cpp.

References Moses::Phrase::AddWord(), CHECK, Moses::Phrase::GetFactor(), Moses::StaticData::GetOutputFactorOrder(), Moses::Phrase::GetSize(), GetTargetPhrase(), and Moses::StaticData::Instance().

Referenced by Moses::Manager::CalcNBest().

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Phrase Moses::TrellisPath::GetTargetPhrase (  )  const

Definition at line 174 of file TrellisPath.cpp.

References Moses::Phrase::Append(), Moses::ARRAY_SIZE_INCR, Moses::Hypothesis::GetCurrTargetPhrase(), and m_path.

Referenced by GetSurfacePhrase().

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WordsRange Moses::TrellisPath::GetTargetWordsRange ( const Hypothesis &  hypo  )  const

get target words range of the hypo within n-best trellis. not necessarily the same as hypo.GetCurrTargetWordsRange()

Definition at line 209 of file TrellisPath.cpp.

References CHECK, Moses::Hypothesis::GetCurrTargetLength(), m_path, and NOT_FOUND.

Referenced by OutputNBest().

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float Moses::TrellisPath::GetTotalScore (  )  const [inline]

get score for this path throught trellis

Definition at line 73 of file TrellisPath.h.

References m_totalScore.

Referenced by LatticeMBRSolution::LatticeMBRSolution(), Moses::CompareTrellisPathCollection::operator()(), Moses::operator<<(), and OutputNBest().

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void Moses::TrellisPath::InitScore (  )  [protected]

Definition at line 44 of file TrellisPath.cpp.

References Moses::Hypothesis::GetScoreBreakdown(), Moses::Hypothesis::GetTotalScore(), Moses::Hypothesis::GetWinningHypo(), m_path, m_scoreBreakdown, m_totalScore, Moses::ScoreComponentCollection::MinusEquals(), and Moses::ScoreComponentCollection::PlusEquals().

Referenced by TrellisPath().

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Moses::TrellisPath::TO_STRING (  ) 

Friends And Related Function Documentation

friend class Manager [friend]

Definition at line 44 of file TrellisPath.h.

std::ostream& operator<< ( std::ostream &  out,
const TrellisPath &  path 
) [friend]

Definition at line 105 of file TrellisPath.h.

Member Data Documentation

std::vector<const Hypothesis *> Moses::TrellisPath::m_path [protected]

Definition at line 47 of file TrellisPath.h.

Referenced by CreateDeviantPaths(), GetEdges(), GetTargetPhrase(), GetTargetWordsRange(), InitScore(), Moses::operator<<(), and TrellisPath().

size_t Moses::TrellisPath::m_prevEdgeChanged [protected]

the last node that was wiggled to create this path , or NOT_FOUND if this path is the best trans so consist of only hypos

Definition at line 48 of file TrellisPath.h.

Referenced by CreateDeviantPaths().

ScoreComponentCollection Moses::TrellisPath::m_scoreBreakdown [protected]

Definition at line 52 of file TrellisPath.h.

Referenced by GetScoreBreakdown(), InitScore(), and TrellisPath().

float Moses::TrellisPath::m_totalScore [protected]

Definition at line 53 of file TrellisPath.h.

Referenced by GetTotalScore(), InitScore(), and TrellisPath().

The documentation for this class was generated from the following files:
Generated on Wed Feb 8 22:04:10 2012 for Moses by  doxygen 1.5.9