opennlp.tools.chunker.ChunkerContextGenerator Maven / Gradle / Ivy
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* 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,
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* See the License for the specific language governing permissions and
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*/
package opennlp.tools.chunker;
import opennlp.tools.util.BeamSearchContextGenerator;
import opennlp.tools.util.TokenTag;
/**
* Interface for the context generator used in syntactic chunking.
*/
public interface ChunkerContextGenerator extends BeamSearchContextGenerator {
/**
* Returns the contexts for chunking of the specified index.
* @param i The index of the token in the specified toks array for which the context should be constructed.
* @param toks The tokens of the sentence. The toString methods of these objects
* should return the token text.
* @param tags The POS tags for the the specified tokens.
* @param preds The previous decisions made in the taging of this sequence.
* Only indices less than i will be examined.
* @return An array of predictive contexts on which a model basis its decisions.
*/
String[] getContext(int i, String[] toks, String[] tags, String[] preds);
}