protected override void DoCalculateMSE(SupervisedBatch batch, DataArray mseValues, int valueIndex)
{
var mseA = mseValues.ToManaged();
fixed (float* pMseA = mseA.InternalArray)
{
var msePtr = mseA.ToPtr(pMseA);
msePtr[valueIndex] = 0.0f;
float count = 0.0f;
foreach (var sample in batch)
{
foreach (var entry in sample)
{
if (entry.HasOutput)
{
var actualOutputs = entry.ActualOutput.ToManaged();
var desiredOutputs = entry.DesiredOutput.ToManaged();
fixed (float* pAO = actualOutputs.InternalArray, pDO = desiredOutputs.InternalArray)
{
var aoPtr = actualOutputs.ToPtr(pAO);
var doPtr = desiredOutputs.ToPtr(pDO);
float cMse = 0.0f;
for (int x = 0; x < actualOutputs.Size; x++)
{
float error = (doPtr[x] - aoPtr[x]) * 0.5f;
cMse += error * error;
}
msePtr[valueIndex] += cMse / (float)actualOutputs.Size;
count++;
}
}
}
}
if (count != 0.0f) msePtr[valueIndex] /= count;
}
}
