net.sf.okapi.steps.gcaligner

Interface AlignmentScorer<T>

All Known Implementing Classes:

GaleAndChurch

public interface AlignmentScorer<T>

SegmentAlignmentScorer defines interface of the source and target segment alignment score functions. Score functions include deletionScore (1-0), insertionScore (0-1), substitutionScore (1-1), contractionScore (2-1), expansionScore (1-2) and meldingScore (2-2).

Method Summary

Modifier and Type	Method and Description
int	contractionScore(T p_sourceTuv1, T p_sourceTuv2, T p_targetTuv) Calculate the cost of contracting two source segments to one target segment.
int	deletionScore(T p_sourceTuv) Calculate the cost of deletion of source segment.
int	expansionScore(T p_sourceTuv, T p_targetTuv1, T p_targetTuv2) Calculate the cost of expanding one source segment to two target segments.
int	insertionScore(T p_targetTuv) Calculate the cost of insertion of target segment.
int	meldingScore(T p_sourceTuv1, T p_sourceTuv2, T p_targetTuv1, T p_targetTuv2) Calculate the cost of melding of two source segments to two target segments.
void	setLocales(LocaleId p_sourceLocale, LocaleId p_targetLocale) Set source and target locales.
int	substitutionScore(T p_sourceTuv, T p_targetTuv) Calculate the cost of substitution of source segment by target segment.

Method Detail

setLocales

void setLocales(LocaleId p_sourceLocale,
                LocaleId p_targetLocale)

Set source and target locales.

Parameters:

p_sourceLocale - Source locale

p_targetLocale - Target locale

substitutionScore

int substitutionScore(T p_sourceTuv,
                      T p_targetTuv)

Calculate the cost of substitution of source segment by target segment.

Parameters:

p_sourceTuv - Source TUV. Source is in X sequence in the DP map.

p_targetTuv - Target TUV. Target is in Y sequence in the DP map.

Returns:

cost of the substitution

deletionScore

int deletionScore(T p_sourceTuv)

Calculate the cost of deletion of source segment.

Parameters:

p_sourceTuv - Source TUV. Source is in X sequence in the DP map.

Returns:

cost of the deletion

insertionScore

int insertionScore(T p_targetTuv)

Calculate the cost of insertion of target segment.

Parameters:

p_targetTuv - Target TUV. Target is in Y sequence in the DP map.

Returns:

cost of the insertion

contractionScore

int contractionScore(T p_sourceTuv1,
                     T p_sourceTuv2,
                     T p_targetTuv)

Calculate the cost of contracting two source segments to one target segment.

Parameters:

p_sourceTuv1 - Source TUV1. Source is in X sequence in the DP map.

p_sourceTuv2 - Source TUV2. Source is in X sequence in the DP map.

p_targetTuv - Target TUV. Target is in Y sequence in the DP map.

Returns:

cost of the contraction

expansionScore

int expansionScore(T p_sourceTuv,
                   T p_targetTuv1,
                   T p_targetTuv2)

Calculate the cost of expanding one source segment to two target segments.

Parameters:

p_sourceTuv - Source TUV. Source is in X sequence in the DP map.

p_targetTuv1 - Target TUV1. Target is in Y sequence in the DP map.

p_targetTuv2 - Target TUV2. Target is in Y sequence in the DP map.

Returns:

cost of the expansion

meldingScore

int meldingScore(T p_sourceTuv1,
                 T p_sourceTuv2,
                 T p_targetTuv1,
                 T p_targetTuv2)

Calculate the cost of melding of two source segments to two target segments.

Parameters:

p_sourceTuv1 - Source TUV1. Source is in X sequence in the DP map.

p_sourceTuv2 - Source TUV2. Source is in X sequence in the DP map.

p_targetTuv1 - Target TUV1. Target is in Y sequence in the DP map.

p_targetTuv2 - Target TUV2. Target is in Y sequence in the DP map.

Returns:

cost of the melding