@Override
public void computeClusters(Engine engine) {
//VPTreeClusteringRowVisitor visitor = new VPTreeClusteringRowVisitor(_distance,_config);
BlockingClusteringRowVisitor visitor = new BlockingClusteringRowVisitor(_distance,_config);
FilteredRows filteredRows = engine.getAllFilteredRows();
filteredRows.accept(_project, visitor);
_clusters = visitor.getClusters();
}
public static class ValuesComparator implements Comparator<Entry<Serializable,Integer>>, Serializable {