public void UpdateTopScores(IData feature)
{
if (feature is DoubleData)
{
Console.WriteLine("DoubleData conversion required on mixture level!");
}
var firstSampleNumber = FloatData.ToFloatData(feature).FirstSampleNumber;
if (_toStoreScore)
{
_curScores = GetStoredScores(firstSampleNumber);
}
else
{
if (_curScores != null && _curScores.FrameStartSample != firstSampleNumber)
{
_curScores = null;
}
}
if (_curScores != null)
{
//component scores for this frame was already calculated
return;
}
var featureVector = FloatData.ToFloatData(feature).Values;
UpdateTopScores(featureVector);
//store just calculated score in list
_curScores = CreateFromTopGau(firstSampleNumber);
if (_toStoreScore)
{
StoreScores(_curScores);
}
}
private void StoreScores(MixtureComponentSetScores scores)
{
_storedScores.Add(scores);
while (_storedScores.Count > _scoresQueueLen)
{
_storedScores.Poll();
}
}
private MixtureComponentSetScores CreateFromTopGau(long firstFrameSample)
{
var scores = new MixtureComponentSetScores(_numStreams, TopGauNum, firstFrameSample);
for (var i = 0; i < _numStreams; i++)
{
for (var j = 0; j < TopGauNum; j++)
{
scores.SetScore(i, j, _topComponents[i][j].StoredScore);
scores.SetGauId(i, j, _topComponents[i][j].Id);
}
}
return(scores);
}
public MixtureComponentSet(List <PrunableMixtureComponent[]> components, int topGauNum)
{
_components = components;
_numStreams = components.Count;
TopGauNum = topGauNum;
GauNum = components[0].Length;
_topComponents = new List <PrunableMixtureComponent[]>();
for (var i = 0; i < _numStreams; i++)
{
var featTopComponents = new PrunableMixtureComponent[topGauNum];
for (var j = 0; j < topGauNum; j++)
{
featTopComponents[j] = components[i][j];
}
_topComponents.Add(featTopComponents);
}
_gauCalcSampleNumber = -1;
_toStoreScore = false;
_storedScores = new LinkedList <MixtureComponentSetScores>();
_curScores = null;
}