Package opennlp.tools.postag
Class DefaultPOSContextGenerator
- java.lang.Object
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- opennlp.tools.postag.DefaultPOSContextGenerator
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- All Implemented Interfaces:
POSContextGenerator,BeamSearchContextGenerator<String>
public class DefaultPOSContextGenerator extends Object implements POSContextGenerator
A defaultcontext generatorfor aPOSTagger.- See Also:
POSTagger,POSTaggerME
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Constructor Summary
Constructors Constructor Description DefaultPOSContextGenerator(int cacheSize, Dictionary dict)Initializes aDefaultPOSContextGeneratorinstance.DefaultPOSContextGenerator(Dictionary dict)Initializes aDefaultPOSContextGeneratorinstance.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description String[]getContext(int index, Object[] tokens, String[] tags)Returns the context for making a postag decision at the specified tokenindexgiven the specifiedtokensand previoustags.String[]getContext(int index, String[] sequence, String[] priorDecisions, Object[] additionalContext)Returns the context for making a postag decision at the specified tokenindexgiven the specifiedtokensand previoustags.
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Constructor Detail
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DefaultPOSContextGenerator
public DefaultPOSContextGenerator(Dictionary dict)
Initializes aDefaultPOSContextGeneratorinstance. A cache size of0will be used as default.- Parameters:
dict- TheDictionaryto be used.
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DefaultPOSContextGenerator
public DefaultPOSContextGenerator(int cacheSize, Dictionary dict)Initializes aDefaultPOSContextGeneratorinstance.- Parameters:
cacheSize- The size of theCacheto set. Must be greater than0to have an effect.dict- TheDictionaryto be used.
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Method Detail
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getContext
public String[] getContext(int index, String[] sequence, String[] priorDecisions, Object[] additionalContext)
Returns the context for making a postag decision at the specified tokenindexgiven the specifiedtokensand previoustags.- Specified by:
getContextin interfaceBeamSearchContextGenerator<String>- Specified by:
getContextin interfacePOSContextGenerator- Parameters:
index- The index of the token for which the context is provided.sequence- The token sequence representing a sentence.priorDecisions- The tags assigned to the previous words in the sentence.additionalContext- The context for additional information.- Returns:
- The context for making a postag decision at the specified token
indexgiven the specifiedtokensand previoustags.
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getContext
public String[] getContext(int index, Object[] tokens, String[] tags)
Returns the context for making a postag decision at the specified tokenindexgiven the specifiedtokensand previoustags.- Parameters:
index- The index of the token for which the context is provided.tokens- The tokens representing a sentence.tags- The tags assigned to the previous words in the sentence.- Returns:
- The context for making a postag decision at the specified token
indexgiven the specifiedtokensand previoustags.
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