private void run() {
if (!model.isRunning()) {
Clusterer clusterer = model.getSelectedClusterer();
ClusteringController controller = Lookup.getDefault().lookup(ClusteringController.class);
controller.clusterize(clusterer);
} else {
//stop
Clusterer clusterer = model.getSelectedClusterer();
ClusteringController controller = Lookup.getDefault().lookup(ClusteringController.class);
controller.cancelClusterize(clusterer);