public void populate(String s) {
_treeBuilder.populate(s);
}
public List<Set<Serializable>> getClusters(double radius) {
VPTree tree = _treeBuilder.buildVPTree();
System.out.println("distances after the tree: " + _distance.getCount());
Set<Node> nodes = _treeBuilder.getNodes();
VPTreeSeeker seeker = new VPTreeSeeker(_distance,tree);
Map<Serializable,Boolean> flags = new HashMap<Serializable,Boolean>();