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#include "MergeScorer.h"
#include <cmath>
#include <stdexcept>
#include "ScoreStats.h"
#include "TerScorer.h"
#include "BleuScorer.h"
#include "PerScorer.h"
#include "CderScorer.h"
#include "TERsrc/tercalc.h"
#include "TERsrc/terAlignment.h"
using namespace TERCpp;
MergeScorer::MergeScorer(const string& config)
: StatisticsBasedScorer("MERGE",config), kLENGTH(4) {}
MergeScorer::~MergeScorer() {}
void MergeScorer::setReferenceFiles(const vector<string>& referenceFiles)
{
throw runtime_error("MERGE Scorer can be used only in mert execution");
exit(0);
}
void MergeScorer::prepareStats(size_t sid, const string& text, ScoreStats& entry)
{
throw runtime_error("MergeScorer::prepareStats : MERGE Scorer can be used only in mert execution");
exit(0);
}
/*
float MergeScorer::calculateScore(const vector<int>& comps)
{
throw runtime_error("MergeScorer::calculateScore : MERGE Scorer can be used only in mert execution");
exit(0);
}
*/
float MergeScorer::calculateScore(const std::vector< int >& comps) const
{
float result=0.0;
float weight=1.0;
float resultTmp=0.0;
vector<int> vecLine;
vector<string> vecScorerType;
vector<float> weightsModifier;
int pos=0;
int weightIncrement=0;
string initfile="merge.init";
string line;
ifstream opt(initfile.c_str());
float denom=0.0;
if (opt.fail()) {
cerr<<"MergeScorer::calculateScore : could not open initfile: " << initfile << endl;
exit(3);
}
while (getline (opt, line)) {
vector<string> vecLine=stringToVector(line, " ");
if ((int)vecLine.size() != 4) {
cerr<<"MergeScorer::calculateScore : Error in initfile: " << initfile << endl;
exit(4);
}
vecScorerType.push_back(vecLine.at(0));
weightsModifier.push_back(atof(vecLine.at(1).c_str()));
denom+=abs(atof(vecLine.at(1).c_str()));
}
for (weightIncrement = 0; weightIncrement < (int) weightsModifier.size(); weightIncrement++)
{
if (vecScorerType.at(weightIncrement).compare("BLEU")==0)
{
BleuScorer* scorer01= new BleuScorer("");
weight=weightsModifier.at(weightIncrement) / denom;
vecLine.clear();
vecLine=subVector(comps, pos,pos+(int)(scorer01->NumberOfScores()));
pos=pos+(int)(scorer01->NumberOfScores());
resultTmp=(scorer01->calculateScore(vecLine));
result+=(weight * resultTmp);
}
else if (vecScorerType.at(weightIncrement).compare("TER")==0)
{
TerScorer* scorer02= new TerScorer("");
weight=weightsModifier.at(weightIncrement) / denom;
vecLine.clear();
vecLine=subVector(comps, pos,pos+(int)(scorer02->NumberOfScores()));
pos=pos+(int)(scorer02->NumberOfScores());
resultTmp=(scorer02->calculateScore(vecLine));
result+=(weight * resultTmp);
}
else if (vecScorerType.at(weightIncrement).compare("PER")==0)
{
PerScorer* scorer03= new PerScorer("");
weight=weightsModifier.at(weightIncrement) / denom;
vecLine.clear();
vecLine=subVector(comps, pos,pos+(int)(scorer03->NumberOfScores()));
pos=pos+(int)(scorer03->NumberOfScores());
resultTmp=(scorer03->calculateScore(vecLine));
result+=(weight * result);
}
else if (vecScorerType.at(weightIncrement).compare("CER")==0)
{
CderScorer* scorer04= new CderScorer("");
weight=weightsModifier.at(weightIncrement) / denom;
vecLine.clear();
vecLine=subVector(comps, pos,pos+(int)(scorer04->NumberOfScores()));
pos=pos+(int)(scorer04->NumberOfScores());
resultTmp=(scorer04->calculateScore(vecLine));
result+=(weight * resultTmp);
}
else
{
throw runtime_error("MergeScorer::calculateScore : Scorer unknown");
exit(0);
}
}
return result;
}
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