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    
020    package org.dllearner.learningproblems;
021    
022    import java.util.Set;
023    
024    import org.dllearner.core.Score;
025    import org.dllearner.core.owl.Individual;
026    
027    /**
028     * @author Jens Lehmann
029     *
030     */
031    public class ScorePosOnly extends Score {
032    
033            private static final long serialVersionUID = 2191608162129054464L;
034            
035            private Set<Individual> coveredInstances;
036            private Set<Individual> notCoveredPositives;
037            private Set<Individual> additionalInstances;
038            
039            private double coverage;
040            private double addition;
041            private double accuracy;        
042            
043            public ScorePosOnly(Set<Individual> coveredInstances, Set<Individual> notCoveredPositives, double coverage, Set<Individual> additionalInstances, double protusion, double accuracy) {
044                    this.coveredInstances = coveredInstances;
045                    this.notCoveredPositives = notCoveredPositives;
046                    this.additionalInstances = additionalInstances;
047                    this.coverage = coverage;
048                    this.addition = protusion;
049                    this.accuracy = accuracy;               
050            }
051            
052            /**
053             * @return Coverage of the class description.
054             */
055            public double getCoverage() {
056                    return coverage;
057            }
058    
059            /**
060             * Let C be the considered class description and A the class to learn. 
061             * The addition number is calculated as the number of instances of C which are also
062             * instances of A divided by the number of instances of C.
063             * @return Additional instances of the class description.
064             */
065            public double getAddition() {
066                    return addition;
067            }
068    
069            /* (non-Javadoc)
070             * @see org.dllearner.core.Score#getAccuracy()
071             */
072            @Override
073            public double getAccuracy() {
074    //              return 0.5 * (coverage + addition);
075                    return accuracy;
076            }
077    
078            /**
079             * @return the coveredInstances
080             */
081            public Set<Individual> getCoveredInstances() {
082                    return coveredInstances;
083            }
084    
085            /**
086             * @return the coveredInstances
087             */
088            public Set<Individual> getNotCoveredPositives() {
089                    return notCoveredPositives;
090            }
091            
092            /**
093             * @return the additionalInstances
094             */
095            public Set<Individual> getAdditionalInstances() {
096                    return additionalInstances;
097            }               
098    
099    }