Package opennlp.tools.chunker

Class ChunkSample

java.lang.Object
opennlp.tools.chunker.ChunkSample
All Implemented Interfaces:
Serializable, Sample
public class ChunkSample extends Object implements Sample
Class for holding chunks for a single unit of text.
See Also:

  • Constructor Details

    • ChunkSample

      public ChunkSample(String[] sentence, String[] tags, String[] preds)
      Initializes a ChunkSample instance.
      Parameters:
      sentence - The training sentence.
      tags - The POS tags for the sentence.
      preds - The chunk tags in B-* I-* notation.

    • ChunkSample

      public ChunkSample(List<String> sentence, List<String> tags, List<String> preds)
      Initializes a ChunkSample instance.
      Parameters:
      sentence - The training sentence.
      tags - The POS tags for the sentence.
      preds - The chunk tags in B-* I-* notation.

  • Method Details

    • getSentence

      public String[] getSentence()
      Returns:
      Retrieves the training sentence.

    • getTags

      public String[] getTags()
      Returns:
      Retrieves the POS Tags for the sentence.

    • getPreds

      public String[] getPreds()
      Returns:
      Retrieves the chunk tags in B-* I-* notation.

    • getPhrasesAsSpanList

      public Span[] getPhrasesAsSpanList()
      Returns:
      the phrases as an array of spans.

    • phrasesAsSpanList

      public static Span[] phrasesAsSpanList(String[] aSentence, String[] aTags, String[] aPreds)
      Create arrays of spans of phrases.
      Parameters:
      aSentence - The training sentence.
      aTags - The POS tags for the sentence.
      aPreds - The chunk tags in B-* I-* notation.
      Returns:
      the phrases as an array of spans

    • nicePrint

      public String nicePrint()
      Creates a nice to read string for the phrases formatted as following:
      [NP Rockwell_NNP ] [VP said_VBD ] [NP the_DT agreement_NN ] [VP calls_VBZ ] [SBAR for_IN ] [NP it_PRP ] [VP to_TO supply_VB ] [NP 200_CD additional_JJ so-called_JJ shipsets_NNS ] [PP for_IN ] [NP the_DT planes_NNS ] ._.
      Returns:
      A nice to read string representation of the chunk phases

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Object