//no rescale
void GetROC::createROC(const char* outputFName,
vector<float> matchScores,
vector<float> nonMatchScores,
int pos, int index)//use va_list=> how to?
{
vector<float> vecMatch, vecNonMatch, vecThres;
vector<float> vecFRR, vecFAR, vecTRR, vecTAR;
//note that matchScores.size() and nonMatchScores.size() are the same.
long totalSize = matchScores.size();
float tar = 0.0f, frr = 1.0f, farx = 0.0f, trr = 1.0f;
float pfrr = 1.0f;
float pfar = 0.0f;
float eer = 0.0f;
bool foundEER = false;
//int a = 0, b = 0;
Utility *util = new Utility();
util->appendToFile(outputFName, "DOC# L/R DEX DESIGN Filename\n");
util->appendToFile(outputFName, "%d %d %d %d %s\n",
3, pos, index, 0,(const char*)util->getFilenamePart((char*)outputFName));
util->appendToFile(outputFName, "Matches NonMatches Thres FRR FAR TRR TAR\n");
//if the list is too big, this will reduce time.
int dist = 1;
if(totalSize > 50000)
dist = (int) (totalSize / 50000);
for(int j = 0; j < totalSize; j = j + dist)
{
for(int i = 0; i < totalSize; i = i + dist)
{
if(matchScores[i] >= 0.0f && matchScores[i] <= matchScores[j])//this should be "<="
{
tar = (float)(i+1)/(float)totalSize;
frr = 1.0f - tar;
}
if(nonMatchScores[i] >= 0.0f && nonMatchScores[i] <= matchScores[j])//this should be "<="
{
farx = (float)(i+1)/(float)totalSize;
trr = 1.0f - farx;
}
}
//printf("frr: %.5f, far: %.5f, trr: %.5f, tar: %.5f\n", frr, farx, trr, tar);
vecMatch.push_back(matchScores[j]);
vecNonMatch.push_back(nonMatchScores[j]);
vecThres.push_back(matchScores[j]);
vecFRR.push_back(frr);
vecFAR.push_back(farx);
vecTRR.push_back(trr);
vecTAR.push_back(tar);
if(!foundEER)
{
if(frr < farx)
{
float x = (pfar- pfrr)/ (frr-pfrr-farx+pfar);
eer = ((farx-pfar)*x+pfar);
foundEER = true;
//printf("eer: %.5f\n", eer);
}
}
pfrr = frr;
pfar = farx;
}
int nSize = vecFAR.size();
if(nSize < 200)
{
for(int i=0; i<nSize; i++)
{
util->appendToFile(outputFName, "%.5f\t%.5f\t%.5f\t%.5f\t%.5f\t%.5f\t%.5f\n",
vecMatch[i], vecNonMatch[i], vecThres[i], vecFRR[i], vecFAR[i], vecTRR[i], vecTAR[i]);
}
}
else
{
for(int i=0; i<nSize; i++)
{
if((unsigned int)(i+1) < vecFAR.size() && vecFAR[i] != vecFAR[i+1])
{
util->appendToFile(outputFName, "%.5f\t%.5f\t%.5f\t%.5f\t%.5f\t%.5f\t%.5f\n",
vecMatch[i], vecNonMatch[i], vecThres[i], vecFRR[i], vecFAR[i], vecTRR[i], vecTAR[i]);
}
}
util->appendToFile(outputFName, "%.5f\t%.5f\t%.5f\t%.5f\t%.5f\t%.5f\t%.5f\n",
vecMatch[nSize-1], vecNonMatch[nSize-1], vecThres[nSize-1],
vecFRR[nSize-1], vecFAR[nSize-1], vecTRR[nSize-1], vecTAR[nSize-1]);
}
if(eer == 0.0f)
util->appendToFile(outputFName, "%.5f\t-999.00\t-999.00\t-999.00\t-999.00\t-999.00\t-999.00\tEER\n", eer);
else
util->appendToFile(outputFName, "%.5f\t-999.00\t-999.00\t-999.00\t-999.00\t-999.00\t-999.00\tEER\n", eer);
delete util;
vecMatch.clear();
vecNonMatch.clear();
vecThres.clear();
vecFRR.clear();
vecFAR.clear();
vecTRR.clear();
vecTAR.clear();
cout <<"The score calculation is done..." << endl;
}
void GetROC::reducedScores1(int colNum, int skip,
const char* inputFName,
const char* outputFName,
int pos, int index)
{
vector<float> TAR, FRR, TRR, FARx;
bool anyFAR = false;
Utility::readFourScores(inputFName, colNum, skip, FRR, FARx, TRR, TAR);
///cout <<"Loading for the file is done" << endl;
Utility *util = new Utility();
util->appendToFile(outputFName, "DOC# L/R DEX DESIGN Filename\n");
util->appendToFile(outputFName, "%d %d %d %d %s\n",
4, pos, index, 0,(const char*)util->getFilenamePart((char*)outputFName));
util->appendToFile(outputFName, " FRR FAR TRR TAR\n");
for(float v=0.0001f; v<1.0f; v=v*10.0f)
{
for(unsigned int i=0; i< FARx.size(); i++)
{
if(FARx[i] >= v && FARx[i] < (v*10.0f) && FARx[i] != -999)
//if(FARx[i] >= v && FARx[i] != -999)
{
if(FARx[i] > 0.99999f)
v=1.0f;
if(i != 0)
{
anyFAR = true;
float prev=v-FARx[i-1];
float next=FARx[i]-v;
if(prev==0.0f)
{
util->appendToFile(outputFName, "%.5f\t%.5f\t%.5f\t%.5f\n",
FRR[i-1], FARx[i-1], TRR[i-1], TAR[i-1]);
break;
}
else
{
float y1=0.0f, y2=0.0f;
y1=TAR[i-1]+((TAR[i]-TAR[i-1])/(prev+next)*prev);
y2=FRR[i-1]+((FRR[i]-FRR[i-1])/(prev+next)*prev);
util->appendToFile(outputFName, "%.5f\t%.5f\t%.5f\t%.5f\n",
y2, v, 1.0-v, y1);
break;
}
}
}
}
if(anyFAR == false)
{
util->appendToFile(outputFName, "%4.2f\t%4.2f\t%4.2f\t%4.2f\n",
-999.00, -999.00, -999.00, -999.00);
}
}
if(anyFAR == false && TAR.size() > 2)
{
int arr = TAR.size()-2;//ignore last (-999)
util->appendToFile(outputFName, "%.5f\t%.5f\t%.5f\t%.5f\n",
FRR[arr], FARx[arr], TRR[arr], TAR[arr]);
}
TAR.clear();
FRR.clear();
TRR.clear();
FARx.clear();
delete util;
cout <<"The reduced ROC is done..." << endl;
}