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// $Id: TranslationAnalysis.cpp 2717 2010-01-28 15:32:04Z phkoehn $
#include <iostream>
#include <sstream>
#include <algorithm>
#include "StaticData.h"
#include "Hypothesis.h"
#include "TranslationAnalysis.h"
using namespace Moses;
namespace TranslationAnalysis {
void PrintTranslationAnalysis(std::ostream &os, const Hypothesis* hypo)
{
os << std::endl << "TRANSLATION HYPOTHESIS DETAILS:" << std::endl;
std::vector<const Hypothesis*> translationPath;
while (hypo) {
translationPath.push_back(hypo);
hypo = hypo->GetPrevHypo();
}
std::reverse(translationPath.begin(), translationPath.end());
std::vector<std::string> droppedWords;
std::vector<const Hypothesis*>::iterator tpi = translationPath.begin();
++tpi; // skip initial translation state
std::vector<std::string> sourceMap;
std::vector<std::string> targetMap;
std::vector<unsigned int> lmAcc(0);
size_t lmCalls = 0;
bool doLMStats = ((*tpi)->GetLMStats() != 0);
if (doLMStats)
lmAcc.resize((*tpi)->GetLMStats()->size(), 0);
for (; tpi != translationPath.end(); ++tpi) {
std::ostringstream sms;
std::ostringstream tms;
std::string target = (*tpi)->GetTargetPhraseStringRep();
std::string source = (*tpi)->GetSourcePhraseStringRep();
WordsRange twr = (*tpi)->GetCurrTargetWordsRange();
WordsRange swr = (*tpi)->GetCurrSourceWordsRange();
// language model backoff stats,
if (doLMStats) {
std::vector<std::vector<unsigned int> >& lmstats = *(*tpi)->GetLMStats();
std::vector<std::vector<unsigned int> >::iterator i = lmstats.begin();
std::vector<unsigned int>::iterator acc = lmAcc.begin();
for (; i != lmstats.end(); ++i, ++acc) {
std::vector<unsigned int>::iterator j = i->begin();
lmCalls += i->size();
for (; j != i->end(); ++j) {
(*acc) += *j;
}
}
}
bool epsilon = false;
if (target == "") {
target="<EPSILON>";
epsilon = true;
droppedWords.push_back(source);
}
os << " SOURCE: " << swr << " " << source << std::endl
<< " TRANSLATED AS: " << target << std::endl;
size_t twr_i = twr.GetStartPos();
size_t swr_i = swr.GetStartPos();
if (!epsilon) { sms << twr_i; }
if (epsilon) { tms << "del(" << swr_i << ")"; } else { tms << swr_i; }
swr_i++; twr_i++;
for (; twr_i <= twr.GetEndPos() && twr.GetEndPos() != NOT_FOUND; twr_i++) {
sms << '-' << twr_i;
}
for (; swr_i <= swr.GetEndPos() && swr.GetEndPos() != NOT_FOUND; swr_i++) {
tms << '-' << swr_i;
}
if (!epsilon) targetMap.push_back(sms.str());
sourceMap.push_back(tms.str());
}
std::vector<std::string>::iterator si = sourceMap.begin();
std::vector<std::string>::iterator ti = targetMap.begin();
os << std::endl << "SOURCE/TARGET SPANS:";
os << std::endl << " SOURCE:";
for (; si != sourceMap.end(); ++si) {
os << " " << *si;
}
os << std::endl << " TARGET:";
for (; ti != targetMap.end(); ++ti) {
os << " " << *ti;
}
os << std::endl << std::endl;
if (doLMStats && lmCalls > 0) {
std::vector<unsigned int>::iterator acc = lmAcc.begin();
const LMList& lmlist = StaticData::Instance().GetAllLM();
LMList::const_iterator i = lmlist.begin();
for (; acc != lmAcc.end(); ++acc, ++i) {
char buf[256];
sprintf(buf, "%.4f", (float)(*acc)/(float)lmCalls);
os << (*i)->GetScoreProducerDescription() <<", AVG N-GRAM LENGTH: " << buf << std::endl;
}
}
if (droppedWords.size() > 0) {
std::vector<std::string>::iterator dwi = droppedWords.begin();
os << std::endl << "WORDS/PHRASES DROPPED:" << std::endl;
for (; dwi != droppedWords.end(); ++dwi) {
os << "\tdropped=" << *dwi << std::endl;
}
}
os << std::endl << "SCORES (UNWEIGHTED/WEIGHTED): ";
StaticData::Instance().GetScoreIndexManager().PrintLabeledWeightedScores(os, translationPath.back()->GetScoreBreakdown(), StaticData::Instance().GetAllWeights());
os << std::endl;
}
}
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