docs: public C run(Database database, Relation<? extends UncertainObject> relation) {
      final int dim = RelationUtil.dimensionality(relation);
      DBIDs ids = relation.getDBIDs();
      // Build a relation storing the center of mass:
      WritableDataStore<DoubleVector> store1 = DataStoreUtil.makeStorage(ids, DataStoreFactory.HINT_DB, DoubleVector.class);
      for(DBIDIter iter = ids.iter(); iter.valid(); iter.advance()) {
        store1.put(iter, relation.get(iter).getCenterOfMass());
      }
      return runClusteringAlgorithm(database.getHierarchy(), relation, ids, store1, dim, "Uncertain Model: Center of Mass");
    }