| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.commons.math4.neuralnet.sofm; |
| |
| import java.util.Iterator; |
| |
| import org.apache.commons.math4.neuralnet.Network; |
| |
| /** |
| * Trainer for Kohonen's Self-Organizing Map. |
| * |
| * @since 3.3 |
| */ |
| public class KohonenTrainingTask implements Runnable { |
| /** SOFM to be trained. */ |
| private final Network net; |
| /** Training data. */ |
| private final Iterator<double[]> featuresIterator; |
| /** Update procedure. */ |
| private final KohonenUpdateAction updateAction; |
| |
| /** |
| * Creates a (sequential) trainer for the given network. |
| * |
| * @param net Network to be trained with the SOFM algorithm. |
| * @param featuresIterator Training data iterator. |
| * @param updateAction SOFM update procedure. |
| */ |
| public KohonenTrainingTask(Network net, |
| Iterator<double[]> featuresIterator, |
| KohonenUpdateAction updateAction) { |
| this.net = net; |
| this.featuresIterator = featuresIterator; |
| this.updateAction = updateAction; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void run() { |
| while (featuresIterator.hasNext()) { |
| updateAction.update(net, featuresIterator.next()); |
| } |
| } |
| } |