opennlp.tools.parser
Class ChunkContextGenerator
java.lang.Object
opennlp.tools.parser.ChunkContextGenerator
- All Implemented Interfaces:
- ChunkerContextGenerator, BeamSearchContextGenerator<String>
public class ChunkContextGenerator
- extends Object
- implements ChunkerContextGenerator
Creates predivtive context for the pre-chunking phases of parsing.
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ChunkContextGenerator
public ChunkContextGenerator()
ChunkContextGenerator
public ChunkContextGenerator(int cacheSize)
getContext
public String[] getContext(Object o)
getContext
public String[] getContext(int i,
String[] words,
String[] prevDecisions,
Object[] ac)
- Description copied from interface:
BeamSearchContextGenerator
- Returns the context for the specified position in the specified sequence (list).
- Specified by:
getContext
in interface BeamSearchContextGenerator<String>
- Parameters:
i
- The index of the sequence.words
- The sequence of items over which the beam search is performed.prevDecisions
- The sequence of decisions made prior to the context for which this decision is being made.ac
- Any addition context specific to a class implementing this interface.
- Returns:
- the context for the specified position in the specified sequence.
getContext
public String[] getContext(int i,
String[] words,
String[] tags,
String[] preds)
- Description copied from interface:
ChunkerContextGenerator
- Returns the contexts for chunking of the specified index.
- Specified by:
getContext
in interface ChunkerContextGenerator
- Parameters:
i
- The index of the token in the specified toks array for which the context should be constructed.words
- The tokens of the sentence. The toString
methods of these objects should return the token text.tags
- The POS tags for the the specified tokens.preds
- The previous decisions made in the taging of this sequence. Only indices less than i will be examined.
- Returns:
- An array of predictive contexts on which a model basis its decisions.
Copyright © 2010. All Rights Reserved.