de.learnlib.algorithms.rpni.BlueFringeRPNIMealy Maven / Gradle / Ivy
/* Copyright (C) 2013-2020 TU Dortmund
* This file is part of LearnLib, http://www.learnlib.de/.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package de.learnlib.algorithms.rpni;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import de.learnlib.api.algorithm.PassiveLearningAlgorithm;
import de.learnlib.api.query.DefaultQuery;
import de.learnlib.datastructure.pta.pta.BlueFringePTA;
import net.automatalib.automata.transducers.MealyMachine;
import net.automatalib.automata.transducers.impl.compact.CompactMealy;
import net.automatalib.commons.util.Pair;
import net.automatalib.words.Alphabet;
import net.automatalib.words.Word;
/**
* Blue-fringe version of RPNI for inferring Mealy machines.
*
* @param
* input symbol type
* @param
* output symbol type
*
* @author Malte Isberner
*/
public class BlueFringeRPNIMealy extends AbstractBlueFringeRPNI, Void, O, MealyMachine>
implements PassiveLearningAlgorithm.PassiveMealyLearner {
private final List>> samples = new ArrayList<>();
public BlueFringeRPNIMealy(Alphabet alphabet) {
super(alphabet);
}
@Override
public void addSamples(Collection>> samples) {
for (DefaultQuery> qry : samples) {
this.samples.add(Pair.of(qry.getInput().toIntArray(alphabet), qry.getOutput()));
}
}
@Override
protected void initializePTA(BlueFringePTA pta) {
for (Pair> sample : samples) {
pta.addSampleWithTransitionProperties(sample.getFirst(), sample.getSecond().asList());
}
}
@Override
protected MealyMachine ptaToModel(BlueFringePTA pta) {
CompactMealy mealy = new CompactMealy<>(alphabet, pta.getNumRedStates());
pta.toAutomaton(mealy, alphabet);
return mealy;
}
}