public void MergeWith(SpeakerCluster target)
{
if (target == null)
{
throw new NullReferenceException();
}
var it = target._segmentSet.GetEnumerator();
while (it.MoveNext())
{
if (!AddSegment(it.Current))
{
Console.WriteLine("Something doesn't work in mergeWith method, Cluster class");
}
}
int rowDim = FeatureMatrix.getRowDimension() + target.FeatureMatrix.getRowDimension();
int colDim = FeatureMatrix.getColumnDimension();
var combinedFeatures = new Array2DRowRealMatrix(rowDim, colDim);
combinedFeatures.setSubMatrix(FeatureMatrix.getData(), 0, 0);
combinedFeatures
.setSubMatrix(target.FeatureMatrix.getData(), FeatureMatrix.getRowDimension(), 0);
_bicValue = SpeakerIdentification.GetBICValue(combinedFeatures);
FeatureMatrix = new Array2DRowRealMatrix(combinedFeatures.getData());
}
public SpeakerCluster(SpeakerCluster c)
{
_segmentSet = new SortedSet <Segment>();
FeatureMatrix = new Array2DRowRealMatrix(c.FeatureMatrix.getData());
var it = c._segmentSet.GetEnumerator();
while (it.MoveNext())
{
AddSegment(it.Current);
}
}
static double ComputeDistance(SpeakerCluster c1, SpeakerCluster c2)
{
int rowDim = c1.FeatureMatrix.getRowDimension() + c2.FeatureMatrix.getRowDimension();
int colDim = c1.FeatureMatrix.getColumnDimension();
Array2DRowRealMatrix combinedFeatures = new Array2DRowRealMatrix(rowDim, colDim);
combinedFeatures.setSubMatrix(c1.FeatureMatrix.getData(), 0, 0);
combinedFeatures.setSubMatrix(c2.FeatureMatrix.getData(), c1.FeatureMatrix.getRowDimension(), 0);
double bicValue = GetBICValue(combinedFeatures);
double d = Segment.FeaturesSize;
double penalty = 0.5 * (d + 0.5 * d * (d + 1)) * Math.Log(combinedFeatures.getRowDimension()) * 2;
return(bicValue - c1.GetBicValue() - c2.GetBicValue() - penalty);
}