| package org.apache.samoa.learners.classifiers; |
| |
| /* |
| * #%L |
| * SAMOA |
| * %% |
| * Copyright (C) 2014 - 2015 Apache Software Foundation |
| * %% |
| * 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. |
| * #L% |
| */ |
| |
| /** |
| * License |
| */ |
| |
| import com.google.common.collect.ImmutableSet; |
| |
| import java.util.Set; |
| |
| import org.apache.samoa.core.Processor; |
| import org.apache.samoa.instances.Instances; |
| import org.apache.samoa.learners.AdaptiveLearner; |
| import org.apache.samoa.learners.ClassificationLearner; |
| import org.apache.samoa.learners.Learner; |
| import org.apache.samoa.moa.classifiers.core.driftdetection.ChangeDetector; |
| import org.apache.samoa.topology.Stream; |
| import org.apache.samoa.topology.TopologyBuilder; |
| |
| import com.github.javacliparser.ClassOption; |
| import com.github.javacliparser.Configurable; |
| |
| /** |
| * |
| * Classifier that contain a single classifier. |
| * |
| */ |
| public final class SingleClassifier implements ClassificationLearner, AdaptiveLearner, Configurable { |
| |
| private static final long serialVersionUID = 684111382631697031L; |
| |
| private LocalLearnerProcessor learnerP; |
| |
| private Stream resultStream; |
| |
| private Instances dataset; |
| |
| public ClassOption learnerOption = new ClassOption("learner", 'l', |
| "Classifier to train.", LocalLearner.class, SimpleClassifierAdapter.class.getName()); |
| |
| private TopologyBuilder builder; |
| |
| private int parallelism; |
| |
| @Override |
| public void init(TopologyBuilder builder, Instances dataset, int parallelism) { |
| this.builder = builder; |
| this.dataset = dataset; |
| this.parallelism = parallelism; |
| this.setLayout(); |
| } |
| |
| protected void setLayout() { |
| learnerP = new LocalLearnerProcessor(); |
| learnerP.setChangeDetector(this.getChangeDetector()); |
| LocalLearner learner = this.learnerOption.getValue(); |
| learner.setDataset(this.dataset); |
| learnerP.setLearner(learner); |
| |
| // learnerPI = this.builder.createPi(learnerP, 1); |
| this.builder.addProcessor(learnerP, parallelism); |
| resultStream = this.builder.createStream(learnerP); |
| |
| learnerP.setOutputStream(resultStream); |
| } |
| |
| @Override |
| public Processor getInputProcessor() { |
| return learnerP; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see samoa.learners.Learner#getResultStreams() |
| */ |
| @Override |
| public Set<Stream> getResultStreams() { |
| return ImmutableSet.of(this.resultStream); |
| } |
| |
| protected ChangeDetector changeDetector; |
| |
| @Override |
| public ChangeDetector getChangeDetector() { |
| return this.changeDetector; |
| } |
| |
| @Override |
| public void setChangeDetector(ChangeDetector cd) { |
| this.changeDetector = cd; |
| } |
| } |