001/**
002 * Copyright (C) 2007 - 2016, Jens Lehmann
003 *
004 * This file is part of DL-Learner.
005 *
006 * DL-Learner is free software; you can redistribute it and/or modify
007 * it under the terms of the GNU General Public License as published by
008 * the Free Software Foundation; either version 3 of the License, or
009 * (at your option) any later version.
010 *
011 * DL-Learner is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014 * GNU General Public License for more details.
015 *
016 * You should have received a copy of the GNU General Public License
017 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
018 */
019package org.dllearner.algorithms.qtl.util;
020
021import org.dllearner.algorithms.qtl.datastructures.impl.RDFResourceTree;
022import org.dllearner.algorithms.qtl.heuristics.QueryTreeEditDistance;
023
024import java.util.Collection;
025
026@SuppressWarnings("deprecation") // deprecated
027interface Clusterable<T> extends org.apache.commons.math3.stat.clustering.Clusterable<T> {}
028
029/**
030 * A wrapper class that allows for using DBSCANClusterer class of Apache Commons
031 * Math with query trees.
032 * @author Lorenz Buehmann
033 *
034 */
035public class QueryTreePoint implements Clusterable<QueryTreePoint>{
036        
037        private RDFResourceTree queryTree;
038
039        public QueryTreePoint(RDFResourceTree queryTree) {
040                this.queryTree = queryTree;
041        }
042        
043        /**
044         * @return the queryTree
045         */
046        public RDFResourceTree getQueryTree() {
047                return queryTree;
048        }
049
050        /* (non-Javadoc)
051         * @see org.apache.commons.math3.stat.clustering.Clusterable#distanceFrom(java.lang.Object)
052         */
053        @Override
054        public double distanceFrom(QueryTreePoint p) {
055                return QueryTreeEditDistance.getDistanceApprox(queryTree, p.getQueryTree());
056        }
057
058        /* (non-Javadoc)
059         * @see org.apache.commons.math3.stat.clustering.Clusterable#centroidOf(java.util.Collection)
060         */
061        @Override
062        public QueryTreePoint centroidOf(Collection<QueryTreePoint> p) {
063                return null;
064        }
065
066}