001/**
002 * Copyright (C) 2007-2011, 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 */
019
020package org.dllearner.algorithms.isle.metrics;
021
022import org.semanticweb.owlapi.model.OWLClassExpression;
023import org.semanticweb.owlapi.model.OWLEntity;
024
025public interface RelevanceMetric {
026        /**
027         * @param entity1
028         * @param entity2
029         * @return
030         */
031        double getRelevance(OWLEntity entity1, OWLEntity entity2);
032        
033        /**
034         * Get  normalized relevance value in [0,1]      * 
035         * @param entity1
036         * @param entity2
037         * @return
038         */
039        double getNormalizedRelevance(OWLEntity entity1, OWLEntity entity2);
040        
041        double getRelevance(OWLEntity entity, OWLClassExpression desc);
042}