Hi everybody
I wrote the following code to get an ordered list from the source words
inside a hypothesis. It gets the words in their translation order, but I
need not only the words' strings, but also the index of each word in the
original sentence.
could you please help me how to get the index of each word in srcPhrase, in
the sentence?
void Amir::GetSourcePhrase2(const ChartHypothesis& cur_hypo,Phrase
&srcPhrase) const
{
AmirUtils utility;
TargetPhrase targetPh=cur_hypo.GetCurrTargetPhrase();
const Phrase *sourcePh=targetPh.GetRuleSource();
int targetWordsNum=cur_hypo.GetCurrTargetPhrase().GetSize();
std::vector <Word> source, orderedSource;
std::vector <int> alignmentVector;
std::vector <bool> isAligned;
std::vector <std::set <size_t> > sourcePosSets;
for(int targetP=0; targetP< targetWordsNum; targetP++ ){
//std::cerr<<"setting alignments for targetword: "<<targetP<<endl;
sourcePosSets.push_back(cur_hypo.GetCurrTargetPhrase().GetAlignTerm().GetAlignmentsForTarget(targetP));
}
for(int ii=targetWordsNum-1; ii>=0; ii--){
std::set <size_t> cur_srcPosSet=sourcePosSets[ii];
for (std::set <size_t>::const_iterator alignmet =
cur_srcPosSet.begin();alignmet != cur_srcPosSet.end(); ++alignmet) {
int alignmentElement=*alignmet;
for(int index=0; index<ii; index++ ){ //keep the rightmost one and
remove the othres
//remove it from the list
if(sourcePosSets[index].size()>0){
// std::cerr<<" removing "<<*alignmet<<endl;
//std::cerr<<" for set with size:
"<<sourcePosSets[index].size()<<endl;
sourcePosSets[index].erase(alignmentElement);
}
}
}
}
for (size_t posT = 0; posT < cur_hypo.GetCurrTargetPhrase().GetSize();
++posT) {
const Word &word = cur_hypo.GetCurrTargetPhrase().GetWord(posT);
if (word.IsNonTerminal()){
// non-term. fill out with prev hypo
size_t nonTermInd =
cur_hypo.GetCurrTargetPhrase().GetAlignNonTerm().GetNonTermIndexMap()[posT];
const ChartHypothesis *prevHypo = cur_hypo.GetPrevHypo(nonTermInd);
GetSourcePhrase2(*prevHypo,srcPhrase);
}
else{
for(std::set<size_t>::const_iterator
it=sourcePosSets[posT].begin();it != sourcePosSets[posT].end() ; it++
){
srcPhrase.AddWord(sourcePh->GetWord(*it));
}
}
}
}
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