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#include "UnalignedWordCountFeature.h"
#include "moses/Phrase.h"
#include "moses/TargetPhrase.h"
#include "moses/ScoreComponentCollection.h"
#include "moses/StaticData.h"
#include "moses/Util.h"
namespace Moses
{
using namespace std;
UnalignedWordCountFeature::UnalignedWordCountFeature(const std::string &line)
: StatelessFeatureFunction(2, line)
{
VERBOSE(1, "Initializing feature " << GetScoreProducerDescription() << " ...");
ReadParameters();
VERBOSE(1, " Done." << std::endl);
}
void UnalignedWordCountFeature::EvaluateInIsolation(const Phrase &source
, const TargetPhrase &targetPhrase
, ScoreComponentCollection &scoreBreakdown
, ScoreComponentCollection &estimatedScores) const
{
const AlignmentInfo &alignmentInfo = targetPhrase.GetAlignTerm();
const size_t sourceLength = source.GetSize();
const size_t targetLength = targetPhrase.GetSize();
std::vector<bool> alignedSource(sourceLength, false);
std::vector<bool> alignedTarget(targetLength, false);
for (AlignmentInfo::const_iterator alignmentPoint = alignmentInfo.begin(); alignmentPoint != alignmentInfo.end(); ++alignmentPoint) {
alignedSource[ alignmentPoint->first ] = true;
alignedTarget[ alignmentPoint->second ] = true;
}
size_t sourceUnalignedCount = 0;
for (size_t j=0; j<sourceLength; ++j) {
if (!alignedSource[j]) {
if (!source.GetWord(j).IsNonTerminal()) {
++sourceUnalignedCount;
}
}
}
size_t targetUnalignedCount = 0;
for (size_t i=0; i<targetLength; i++) {
if (!alignedTarget[i]) {
if (!targetPhrase.GetWord(i).IsNonTerminal()) {
++targetUnalignedCount;
}
}
}
scoreBreakdown.PlusEquals(m_index, sourceUnalignedCount);
scoreBreakdown.PlusEquals(m_index+1, targetUnalignedCount);
IFFEATUREVERBOSE(2) {
FEATUREVERBOSE(2, source << std::endl);
FEATUREVERBOSE(2, targetPhrase << std::endl);
for (AlignmentInfo::const_iterator it=targetPhrase.GetAlignTerm().begin();
it!=targetPhrase.GetAlignTerm().end(); ++it) {
FEATUREVERBOSE(2, "alignTerm " << it->first << " " << it->second << std::endl);
}
for (AlignmentInfo::const_iterator it=targetPhrase.GetAlignNonTerm().begin();
it!=targetPhrase.GetAlignNonTerm().end(); ++it) {
FEATUREVERBOSE(2, "alignNonTerm " << it->first << " " << it->second << std::endl);
}
FEATUREVERBOSE(2, "sourceLength= " << sourceLength << std::endl);
FEATUREVERBOSE(2, "targetLength= " << targetLength << std::endl);
FEATUREVERBOSE(2, "sourceUnalignedCount= " << sourceUnalignedCount << std::endl);
FEATUREVERBOSE(2, "targetUnalignedCount= " << targetUnalignedCount << std::endl);
}
}
}
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