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https://github.com/moses-smt/mosesdecoder.git
synced 2024-12-28 06:22:14 +03:00
119 lines
3.7 KiB
C++
119 lines
3.7 KiB
C++
#include "MergeScorer.h"
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#include <cmath>
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#include <stdexcept>
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#include "ScoreStats.h"
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#include "TerScorer.h"
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#include "BleuScorer.h"
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#include "PerScorer.h"
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#include "CderScorer.h"
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#include "TERsrc/tercalc.h"
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#include "TERsrc/terAlignment.h"
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using namespace TERCpp;
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MergeScorer::MergeScorer(const string& config)
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: StatisticsBasedScorer("MERGE",config), kLENGTH(4) {}
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MergeScorer::~MergeScorer() {}
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void MergeScorer::setReferenceFiles(const vector<string>& referenceFiles)
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{
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throw runtime_error("MERGE Scorer can be used only in mert execution");
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exit(0);
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}
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void MergeScorer::prepareStats(size_t sid, const string& text, ScoreStats& entry)
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{
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throw runtime_error("MergeScorer::prepareStats : MERGE Scorer can be used only in mert execution");
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exit(0);
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}
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/*
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float MergeScorer::calculateScore(const vector<int>& comps)
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{
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throw runtime_error("MergeScorer::calculateScore : MERGE Scorer can be used only in mert execution");
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exit(0);
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}
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*/
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float MergeScorer::calculateScore(const std::vector< int >& comps) const
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{
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float result=0.0;
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float weight=1.0;
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float resultTmp=0.0;
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vector<int> vecLine;
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vector<string> vecScorerType;
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vector<float> weightsModifier;
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int pos=0;
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int weightIncrement=0;
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string initfile="merge.init";
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string line;
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ifstream opt(initfile.c_str());
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float denom=0.0;
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if (opt.fail()) {
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cerr<<"MergeScorer::calculateScore : could not open initfile: " << initfile << endl;
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exit(3);
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}
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while (getline (opt, line)) {
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vector<string> vecLine=stringToVector(line, " ");
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if ((int)vecLine.size() != 4) {
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cerr<<"MergeScorer::calculateScore : Error in initfile: " << initfile << endl;
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exit(4);
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}
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vecScorerType.push_back(vecLine.at(0));
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weightsModifier.push_back(atof(vecLine.at(1).c_str()));
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denom+=abs(atof(vecLine.at(1).c_str()));
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}
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for (weightIncrement = 0; weightIncrement < (int) weightsModifier.size(); weightIncrement++)
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{
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if (vecScorerType.at(weightIncrement).compare("BLEU")==0)
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{
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BleuScorer* scorer01= new BleuScorer("");
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weight=weightsModifier.at(weightIncrement) / denom;
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vecLine.clear();
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vecLine=subVector(comps, pos,pos+(int)(scorer01->NumberOfScores()));
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pos=pos+(int)(scorer01->NumberOfScores());
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resultTmp=(scorer01->calculateScore(vecLine));
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result+=(weight * resultTmp);
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}
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else if (vecScorerType.at(weightIncrement).compare("TER")==0)
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{
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TerScorer* scorer02= new TerScorer("");
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weight=weightsModifier.at(weightIncrement) / denom;
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vecLine.clear();
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vecLine=subVector(comps, pos,pos+(int)(scorer02->NumberOfScores()));
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pos=pos+(int)(scorer02->NumberOfScores());
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resultTmp=(scorer02->calculateScore(vecLine));
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result+=(weight * resultTmp);
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}
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else if (vecScorerType.at(weightIncrement).compare("PER")==0)
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{
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PerScorer* scorer03= new PerScorer("");
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weight=weightsModifier.at(weightIncrement) / denom;
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vecLine.clear();
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vecLine=subVector(comps, pos,pos+(int)(scorer03->NumberOfScores()));
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pos=pos+(int)(scorer03->NumberOfScores());
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resultTmp=(scorer03->calculateScore(vecLine));
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result+=(weight * result);
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}
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else if (vecScorerType.at(weightIncrement).compare("CER")==0)
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{
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CderScorer* scorer04= new CderScorer("");
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weight=weightsModifier.at(weightIncrement) / denom;
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vecLine.clear();
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vecLine=subVector(comps, pos,pos+(int)(scorer04->NumberOfScores()));
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pos=pos+(int)(scorer04->NumberOfScores());
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resultTmp=(scorer04->calculateScore(vecLine));
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result+=(weight * resultTmp);
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}
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else
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{
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throw runtime_error("MergeScorer::calculateScore : Scorer unknown");
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exit(0);
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}
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}
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return result;
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}
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