public IClusteringCentroid <DomainType> Cluster(IDataSet <DomainType> data_set)
{
IFunction <IList <DomainType[]>, ICentroidDistance <DomainType> > centroid_calculator = centroid_calculator_template.Generate(data_set.DataContext);
IList <DomainType[]> instance_features_list = data_set.FeatureData;
RandomNumberGenerator generator = new RNGCryptoServiceProvider();
IList <ICentroidDistance <DomainType> > centroids = new List <ICentroidDistance <DomainType> >();
int[] permutation = generator.RandomPermutation(instance_features_list.Count);
for (int centroid_index = 0; centroid_index < this.desired_cluster_count; centroid_index++)
{
IList <DomainType[]> centroid_members = new List <DomainType[]>();
centroid_members.Add(instance_features_list[permutation[centroid_index]]);
if (centroid_members.Count != 0)
{
centroids.Add(centroid_calculator.Compute(centroid_members));
}
}
Cluster(instance_features_list, centroid_calculator, centroids);
return(new ClusteringCentroid <DomainType>(data_set.DataContext, centroids));
}