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.learningproblems; 020 021import java.util.Set; 022 023import org.dllearner.core.Score; 024import org.semanticweb.owlapi.model.OWLEntity; 025 026/** 027 * The score class is used to store how well a class description did 028 * on a learning problem. 029 * 030 * @author Jens Lehmann 031 * 032 */ 033public abstract class ScorePosNeg<T extends OWLEntity> extends Score { 034 035 private static final long serialVersionUID = -4646131678864109469L; 036 037 public abstract double getScoreValue(); 038 039 // example coverage 040 public abstract Set<T> getCoveredPositives(); 041 public abstract Set<T> getCoveredNegatives(); 042 public abstract Set<T> getNotCoveredPositives(); 043 public abstract Set<T> getNotCoveredNegatives(); 044 045 /** 046 * The score of a concept depends on how good it classifies the 047 * examples of a learning problem and the length of the concept 048 * itself. If a given concept is known to have equal classification 049 * properties than the concept this score object is based on, then 050 * this method can be used to calculate its score value by using the 051 * length of this concept as parameter. 052 * 053 * @param newLength Length of the concept. 054 * @return Score. 055 */ 056 public abstract ScorePosNeg<T> getModifiedLengthScore(int newLength); 057 058}