public List <KeyValuePair <string, double> > Rank(List <T> X, T rec)
{
List <KeyValuePair <string, double> > ranks = new List <KeyValuePair <string, double> >();
int sample_count = X.Count;
int theta_dimension = sample_count + 1;
foreach (string class_label in mClassFieldLabels)
{
double[] theta = mTheta[class_label];
double z = theta[0];
for (int d2 = 1; d2 < theta_dimension; ++d2)
{
z += (theta[d2] * mKernel.Calc(rec.Data, X[d2 - 1].Data));
}
ranks.Add(new KeyValuePair <string, double>(class_label, z));
}
ranks.Sort((s1, s2) =>
{
return(s2.Value.CompareTo(s1.Value));
});
return(ranks);
}
public override double Evaluate(double[] theta)
{
double J = 0;
for (int i = 0; i < mSampleCount; ++i)
{
double z = theta[0];
for (int d2 = 1; d2 < mDimensionCount; ++d2)
{
z += (theta[d2] * mKernel.Calc(mDataSet[i].Data, mDataSet[d2 - 1].Data));
}
J += mC * (mY[i] * cost1(z) + (1 - mY[i]) * cost0(z));
}
for (int d = 0; d < mDimensionCount; ++d)
{
J += (theta[d] * theta[d] / 2);
}
//Console.WriteLine("J: {0}", J);
return(J);
}
