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java.lang.Objectopennlp.tools.namefind.DefaultNameContextGenerator
public class DefaultNameContextGenerator
Class for determining contextual features for a tag/chunk style named-entity recognizer.
| Constructor Summary | |
|---|---|
DefaultNameContextGenerator()
Deprecated. use the other constructor and always provide the feature generators |
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DefaultNameContextGenerator(AdaptiveFeatureGenerator... featureGenerators)
Creates a name context generator with the specified cache size. |
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| Method Summary | |
|---|---|
void |
addFeatureGenerator(AdaptiveFeatureGenerator generator)
Adds a feature generator to this set of feature generators. |
void |
clearAdaptiveData()
Informs all the feature generators for a name finder that the context of the adaptive data (typically a document) is no longer valid. |
String[] |
getContext(int index,
String[] tokens,
String[] preds,
Object[] additionalContext)
Return the context for finding names at the specified index. |
void |
updateAdaptiveData(String[] tokens,
String[] outcomes)
Informs all the feature generators for a name finder that the specified tokens have been classified with the coorisponds set of specified outcomes. |
| Methods inherited from class java.lang.Object |
|---|
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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@Deprecated public DefaultNameContextGenerator()
public DefaultNameContextGenerator(AdaptiveFeatureGenerator... featureGenerators)
| Method Detail |
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public void addFeatureGenerator(AdaptiveFeatureGenerator generator)
NameContextGenerator
addFeatureGenerator in interface NameContextGeneratorgenerator - The feature generator to add.
public void updateAdaptiveData(String[] tokens,
String[] outcomes)
NameContextGenerator
updateAdaptiveData in interface NameContextGeneratortokens - The tokens of the sentence or other text unit which has been processed.outcomes - The outcomes associated with the specified tokens.public void clearAdaptiveData()
NameContextGenerator
clearAdaptiveData in interface NameContextGenerator
public String[] getContext(int index,
String[] tokens,
String[] preds,
Object[] additionalContext)
getContext in interface BeamSearchContextGenerator<String>index - The index of the token in the specified toks array for which the context should be constructed.tokens - The tokens of the sentence. The toString methods of these objects should return the token text.preds - The previous decisions made in the tagging of this sequence. Only indices less than i will be examined.additionalContext - Addition features which may be based on a context outside of the sentence.
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