Package opennlp.tools.namefind
Class BilouCodec
- java.lang.Object
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- opennlp.tools.namefind.BilouCodec
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- All Implemented Interfaces:
SequenceCodec<String>
public class BilouCodec extends Object implements SequenceCodec<String>
The defaultSequenceCodecimplementation according to theBILOUscheme.- B: 'beginning' of a NE
- I: 'inside', the word is inside a NE
- L: 'last', the last (I) word inside a NE
- O: 'outside', the word is a regular word outside a NE
- U: 'unit', any standalone token following words outside of NE
- See Also:
SequenceCodec,BioCodec
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Constructor Summary
Constructors Constructor Description BilouCodec()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description booleanareOutcomesCompatible(String[] outcomes)B requires CL or L, C requires BL, L requires B, O requires any valid combo/unit, U requires none.SequenceValidator<String>createSequenceValidator()Span[]decode(List<String> c)String[]encode(Span[] names, int length)
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Field Detail
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START
public static final String START
- See Also:
- Constant Field Values
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CONTINUE
public static final String CONTINUE
- See Also:
- Constant Field Values
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LAST
public static final String LAST
- See Also:
- Constant Field Values
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UNIT
public static final String UNIT
- See Also:
- Constant Field Values
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OTHER
public static final String OTHER
- See Also:
- Constant Field Values
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Method Detail
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decode
public Span[] decode(List<String> c)
Description copied from interface:SequenceCodec- Specified by:
decodein interfaceSequenceCodec<String>- Parameters:
c- A list ofSequenceCodecto decode.- Returns:
- A
Spanarray encapsulating the decoded elements inc.
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encode
public String[] encode(Span[] names, int length)
Description copied from interface:SequenceCodec- Specified by:
encodein interfaceSequenceCodec<String>- Parameters:
names- A list ofelementsto encode.length- The length to respect.- Returns:
- An array of
SequenceCodecto encode.
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createSequenceValidator
public SequenceValidator<String> createSequenceValidator()
- Specified by:
createSequenceValidatorin interfaceSequenceCodec<String>- Returns:
- A
SequenceValidatorwhich can validate a sequence ofoutcomes.
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areOutcomesCompatible
public boolean areOutcomesCompatible(String[] outcomes)
B requires CL or L, C requires BL, L requires B, O requires any valid combo/unit, U requires none.- Specified by:
areOutcomesCompatiblein interfaceSequenceCodec<String>- Parameters:
outcomes- All potential model outcomes check.- Returns:
true, if model outcomes are compatible,falseotherwise.
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