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#include <iostream>
#include <fstream>
#include <cassert>
#include <vector>
#include "extract-lex.h"
#include "InputFileStream.h"
#include "moses/Util.h"
using namespace std;
using namespace MosesTraining;
float COUNT_INCR = 1;
void fix(std::ostream& stream)
{
stream.setf(std::ios::fixed);
stream.precision(7);
}
int main(int argc, char* argv[])
{
cerr << "Starting...\n";
assert(argc == 6);
char* &filePathTarget = argv[1];
char* &filePathSource = argv[2];
char* &filePathAlign = argv[3];
char* &filePathLexS2T = argv[4];
char* &filePathLexT2S = argv[5];
Moses::InputFileStream streamTarget(filePathTarget);
Moses::InputFileStream streamSource(filePathSource);
Moses::InputFileStream streamAlign(filePathAlign);
ofstream streamLexS2T;
ofstream streamLexT2S;
streamLexS2T.open(filePathLexS2T);
streamLexT2S.open(filePathLexT2S);
fix(streamLexS2T);
fix(streamLexT2S);
ExtractLex extractSingleton;
size_t lineCount = 0;
string lineTarget, lineSource, lineAlign;
while (getline(streamTarget, lineTarget)) {
if (lineCount % 10000 == 0)
cerr << lineCount << " ";
istream &isSource = getline(streamSource, lineSource);
assert(isSource);
istream &isAlign = getline(streamAlign, lineAlign);
assert(isAlign);
vector<string> toksTarget, toksSource, toksAlign;
Moses::Tokenize(toksTarget, lineTarget);
Moses::Tokenize(toksSource, lineSource);
Moses::Tokenize(toksAlign, lineAlign);
/*
cerr << endl
<< toksTarget.size() << " " << lineTarget << endl
<< toksSource.size() << " " << lineSource << endl
<< toksAlign.size() << " " << lineAlign << endl;
*/
extractSingleton.Process(toksTarget, toksSource, toksAlign, lineCount);
++lineCount;
}
extractSingleton.Output(streamLexS2T, streamLexT2S);
streamTarget.Close();
streamSource.Close();
streamAlign.Close();
streamLexS2T.close();
streamLexT2S.close();
cerr << "\nFinished\n";
}
namespace MosesTraining
{
const std::string *Vocab::GetOrAdd(const std::string &word)
{
const string *ret = &(*m_coll.insert(word).first);
return ret;
}
void ExtractLex::Process(vector<string> &toksTarget, vector<string> &toksSource, vector<string> &toksAlign, size_t lineCount)
{
std::vector<bool> m_sourceAligned(toksSource.size(), false)
, m_targetAligned(toksTarget.size(), false);
vector<string>::const_iterator iterAlign;
for (iterAlign = toksAlign.begin(); iterAlign != toksAlign.end(); ++iterAlign) {
const string &alignTok = *iterAlign;
vector<size_t> alignPos;
Moses::Tokenize(alignPos, alignTok, "-");
assert(alignPos.size() == 2);
if (alignPos[0] >= toksSource.size()) {
cerr << "ERROR: alignment over source length. Alignment " << alignPos[0] << " at line " << lineCount << endl;
continue;
}
if (alignPos[1] >= toksTarget.size()) {
cerr << "ERROR: alignment over target length. Alignment " << alignPos[1] << " at line " << lineCount << endl;
continue;
}
assert(alignPos[0] < toksSource.size());
assert(alignPos[1] < toksTarget.size());
m_sourceAligned[ alignPos[0] ] = true;
m_targetAligned[ alignPos[1] ] = true;
const string &tmpSource = toksSource[ alignPos[0] ];
const string &tmpTarget = toksTarget[ alignPos[1] ];
const string *source = m_vocab.GetOrAdd(tmpSource);
const string *target = m_vocab.GetOrAdd(tmpTarget);
Process(target, source);
}
ProcessUnaligned(toksTarget, toksSource, m_sourceAligned, m_targetAligned);
}
void ExtractLex::Process(const std::string *target, const std::string *source)
{
WordCount &wcS2T = m_collS2T[source];
WordCount &wcT2S = m_collT2S[target];
wcS2T.AddCount(COUNT_INCR);
wcT2S.AddCount(COUNT_INCR);
Process(wcS2T, target);
Process(wcT2S, source);
}
void ExtractLex::Process(WordCount &wcIn, const std::string *out)
{
std::map<const std::string*, WordCount> &collOut = wcIn.GetColl();
WordCount &wcOut = collOut[out];
wcOut.AddCount(COUNT_INCR);
}
void ExtractLex::ProcessUnaligned(vector<string> &toksTarget, vector<string> &toksSource
, const std::vector<bool> &m_sourceAligned, const std::vector<bool> &m_targetAligned)
{
const string *nullWord = m_vocab.GetOrAdd("NULL");
for (size_t pos = 0; pos < m_sourceAligned.size(); ++pos) {
bool isAlignedCurr = m_sourceAligned[pos];
if (!isAlignedCurr) {
const string &tmpWord = toksSource[pos];
const string *sourceWord = m_vocab.GetOrAdd(tmpWord);
Process(nullWord, sourceWord);
}
}
for (size_t pos = 0; pos < m_targetAligned.size(); ++pos) {
bool isAlignedCurr = m_targetAligned[pos];
if (!isAlignedCurr) {
const string &tmpWord = toksTarget[pos];
const string *targetWord = m_vocab.GetOrAdd(tmpWord);
Process(targetWord, nullWord);
}
}
}
void ExtractLex::Output(std::ofstream &streamLexS2T, std::ofstream &streamLexT2S)
{
Output(m_collS2T, streamLexS2T);
Output(m_collT2S, streamLexT2S);
}
void ExtractLex::Output(const std::map<const std::string*, WordCount> &coll, std::ofstream &outStream)
{
std::map<const std::string*, WordCount>::const_iterator iterOuter;
for (iterOuter = coll.begin(); iterOuter != coll.end(); ++iterOuter) {
const string &inStr = *iterOuter->first;
const WordCount &inWC = iterOuter->second;
const std::map<const std::string*, WordCount> &outColl = inWC.GetColl();
std::map<const std::string*, WordCount>::const_iterator iterInner;
for (iterInner = outColl.begin(); iterInner != outColl.end(); ++iterInner) {
const string &outStr = *iterInner->first;
const WordCount &outWC = iterInner->second;
float prob = outWC.GetCount() / inWC.GetCount();
outStream << outStr << " " << inStr << " " << prob << endl;
}
}
}
std::ostream& operator<<(std::ostream &out, const WordCount &obj)
{
out << "(" << obj.GetCount() << ")";
return out;
}
void WordCount::AddCount(float incr)
{
m_count += incr;
}
} // namespace
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