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To answer you question - the target phrase has a method called
GetAlignTerm()
that contains the alignment for terminals. This comes from the
phrase-table, and ultimately from the word alignment.
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Date: Wed, 13 Jan 2016 23:36:50 -0500
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Subject: Getting alignments for current hypothesis in phrase based model
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Hi,
I'm trying to add source side information in my feature function for phrase
based model. For this purpose I am implementing a StatefulFeatureFunction and
in that I'm adding my code to the EvaluateWhenApplied(const Hypothesis&
cur_hypo, const FFState* prev_state, ScoreComponentCollection* accumulator)
function.
For adding the source side information, I am able to get the source sentence
from the Manager object (I get the Manager object from the Hypothesis object).
I also have the current target phrase from the Hypothesis object. Is it
possible to get alignment information here for the current target phrase? I
specifically want to know which words in the current target phrase are aligned
to which words in the source sentence.
>From my initial search, I can get the AlignmentInfo object from
>cur_hypo.GetCurrTargetPhrase().GetAlignTerm() or
>cur_hypo.GetCurrTargetPhrase().GetAlignNonTerm(). But, I'm not sure which of
>these would be useful in my case.
Any information would be greatly appreciated.
Thanks,
Jasneet
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