private static void CalculateFirstStage()
{
Parallel.For(0, FirstStageDistance.Length, (i) =>
{
double temp = 0;
int index = i * FeatureExtaction.FEATURE_REDUCE_SIZE;
for (int j = 0; j < FIRST_STAGE_DIMENSION; j++)
{
var diff = (FeatureExtaction.Features[j] - QuadraticDiscriminant.MEAN_VECTOR[index]);
temp += diff * diff;
index++;
}
FirstStageDistance[i] = (float)temp;
ClassIndex[i] = (ushort)i;
});
QuickSelect.Start(FirstStageDistance, ClassIndex, 0, FIRST_STAGE_FINAL_INDEX, FIRST_STAGE_NCLASS);
}
private static void CalculateSecondStage()
{
CalculateMDQF(SecondStageDistance, SECOND_STAGE_K_DIMENSION);
QuickSelect.Start(SecondStageDistance, ClassIndex, 0, SECOND_STAGE_FINAL_INDEX, SECOND_STAGE_NCLASS);
}