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.core.ref;
020
021import org.dllearner.core.LearningProblem;
022import org.semanticweb.owlapi.model.OWLClassExpression;
023import org.semanticweb.owlapi.model.OWLOntology;
024import org.semanticweb.owlapi.reasoner.OWLReasoner;
025
026/**
027 * @author Lorenz Buehmann
028 *
029 */
030// not for conf
031public class ALCLearningAlgorithm extends RefinementOperatorBasedLearningAlgorithmBase<OWLClassExpression>{
032        
033        public ALCLearningAlgorithm(OWLOntology ontology, OWLReasoner reasoner) {
034        
035        }
036
037        /* (non-Javadoc)
038         * @see org.dllearner.core.LearningAlgorithm#getLearningProblem()
039         */
040        @Override
041        public LearningProblem getLearningProblem() {
042                return null;
043        }
044
045        /* (non-Javadoc)
046         * @see org.dllearner.core.LearningAlgorithm#setLearningProblem(org.dllearner.core.LearningProblem)
047         */
048        @Override
049        public void setLearningProblem(LearningProblem learningProblem) {
050        }
051
052        /* (non-Javadoc)
053         * @see org.dllearner.core.ref.RefinementOperatorBasedLearningAlgorithmBase#computeStartNode()
054         */
055        @Override
056        protected SearchTreeNode<OWLClassExpression> computeStartNode() {
057                return null;
058        }
059
060        /* (non-Javadoc)
061         * @see org.dllearner.core.ref.RefinementOperatorBasedLearningAlgorithmBase#getNextNodeToExpand()
062         */
063        @Override
064        protected SearchTreeNode<OWLClassExpression> getNextNodeToExpand() {
065                return searchTree.getNodes().last();
066        }
067
068        /* (non-Javadoc)
069         * @see org.dllearner.core.ref.RefinementOperatorBasedLearningAlgorithmBase#isValid(java.lang.Object)
070         */
071        @Override
072        protected boolean isValid(OWLClassExpression refinement) {
073                return true;
074        }
075
076        /* (non-Javadoc)
077         * @see org.dllearner.core.ref.RefinementOperatorBasedLearningAlgorithmBase#terminationCriteriaSatisfied()
078         */
079        @Override
080        protected boolean terminationCriteriaSatisfied() {
081                return false;
082        }
083
084}