private float getSimilarity(Cluster c1, Cluster c2, DocTermMatrix matrix)
{
float centroid1 = matrix.GetCentroid(c1);
float centroid2 = matrix.GetCentroid(c2);
float norm1 = matrix.GetNorm(c1);
float norm2 = matrix.GetNorm(c2);
return((centroid1 * centroid2) / (norm1 * norm2));
}
public float GetIntraDistance(Cluster c)
{
return((float)Math.Pow(matrix.GetCentroid(c), 2));
}
