mosesdecoder/mert/Data.cpp
bhaddow 83f234cf17 Implementation of Cer et al mert regularisation. Use with argument such
as --scconfig regtype:min,regwin:3 in extractor and mert. Only tested
on toy example so far.


git-svn-id: https://mosesdecoder.svn.sourceforge.net/svnroot/mosesdecoder/trunk@1860 1f5c12ca-751b-0410-a591-d2e778427230
2008-06-24 19:27:18 +00:00

104 lines
2.6 KiB
C++

/*
* Data.cpp
* met - Minimum Error Training
*
* Created by Nicola Bertoldi on 13/05/08.
*
*/
#include <fstream>
#include "Scorer.h"
#include "Data.h"
#include "Util.h"
Data::Data(Scorer& ptr):
theScorer(&ptr)
{
score_type = (*theScorer).getName();
TRACE_ERR("Data::score_type " << score_type << std::endl);
TRACE_ERR("Data::Scorer type from Scorer: " << theScorer->getName() << endl);
featdata=new FeatureData;
scoredata=new ScoreData(*theScorer);
};
void Data::loadnbest(const std::string &file)
{
TRACE_ERR("loading nbest from " << file << std::endl);
FeatureStats featentry;
ScoreStats scoreentry;
std::string sentence_index;
inputfilestream inp(file); // matches a stream with a file. Opens the file
if (!inp.good())
throw runtime_error("Unable to open: " + file);
std::string substring, subsubstring, stringBuf;
std::string theSentence;
std::string::size_type loc;
while (getline(inp,stringBuf,'\n')){
if (stringBuf.empty()) continue;
// TRACE_ERR("stringBuf: " << stringBuf << std::endl);
getNextPound(stringBuf, substring, "|||"); //first field
sentence_index = substring;
getNextPound(stringBuf, substring, "|||"); //second field
theSentence = substring;
// adding statistics for error measures
featentry.reset();
scoreentry.clear();
theScorer->prepareStats(sentence_index, theSentence, scoreentry);
scoredata->add(scoreentry, sentence_index);
getNextPound(stringBuf, substring, "|||"); //third field
if (!existsFeatureNames()){
std::string stringsupport=substring;
// adding feature names
std::string features="";
std::string tmpname="";
size_t tmpidx=0;
while (!stringsupport.empty()){
// TRACE_ERR("Decompounding: " << substring << std::endl);
getNextPound(stringsupport, subsubstring);
// string ending with ":" are skipped, because they are the names of the features
if ((loc = subsubstring.find(":")) != subsubstring.length()-1){
features+=tmpname+"_"+stringify(tmpidx)+" ";
tmpidx++;
}
else{
tmpidx=0;
tmpname=subsubstring.substr(0,subsubstring.size() - 1);
}
}
featdata->setFeatureMap(features);
}
// adding features
while (!substring.empty()){
// TRACE_ERR("Decompounding: " << substring << std::endl);
getNextPound(substring, subsubstring);
// string ending with ":" are skipped, because they are the names of the features
if ((loc = subsubstring.find(":")) != subsubstring.length()-1){
featentry.add(ATOFST(subsubstring.c_str()));
}
}
featdata->add(featentry,sentence_index);
}
inp.close();
}