| /* |
| * 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 opennlp.tools.util.featuregen.lang.jpn; |
| |
| import java.util.List; |
| |
| import opennlp.tools.util.featuregen.AdaptiveFeatureGenerator; |
| import opennlp.tools.util.featuregen.BrownCluster; |
| import opennlp.tools.util.featuregen.BrownTokenClasses; |
| |
| /** |
| * Generates Brown cluster features for current token and token class. |
| */ |
| public class BrownTokenClassFeatureGenerator implements AdaptiveFeatureGenerator { |
| |
| private BrownCluster brownLexicon; |
| |
| public BrownTokenClassFeatureGenerator(BrownCluster dict) { |
| this.brownLexicon = dict; |
| } |
| |
| public void createFeatures(List<String> features, String[] tokens, int index, |
| String[] previousOutcomes) { |
| |
| String wordShape = FeatureGeneratorUtil.tokenFeature(tokens[index]); |
| List<String> wordClasses = BrownTokenClasses.getWordClasses(tokens[index], brownLexicon); |
| |
| for (int i = 0; i < wordClasses.size(); i++) { |
| features.add("c," + "browncluster" + "=" + wordShape + "," + wordClasses.get(i)); |
| } |
| } |
| |
| } |
| |