Examples of edu.stanford.nlp.ling.Label

edu.stanford.nlp.ling.Label
Something that implements the Label interface can act as a constituent, node, or word label with linguistic attributes. A Label is required to have a "primary" String value() (although this may be null). This is referred to as its value.
Implementations of Label split into two groups with respect to equality. Classes that extend ValueLabel define equality solely in terms of String equality of its value (secondary facets may be present but are ignored for purposes of equality), and have equals and compareTo defined across all subclasses of ValueLabel. This behavior should not be changed. Other classes that implement Label define equality only with their own type and require all fields of the type to be equal.
A subclass that extends another Label class should override the definition of labelFactory(), since the contract for this method is that it should return a factory for labels of the exact same object type. @author Christopher Manning

        System.err.println("  checking in " + kid);
      }
      if (isVerbalAuxiliary(kid, passiveAuxiliaries, false)) {
          foundPassiveAux = true;
      } else if (kid.isPhrasal()) {
        Label kidLabel = kid.label();
        String cat = null;
        if (kidLabel instanceof HasCategory) {
          cat = ((HasCategory) kidLabel).category();
        }
        if (cat == null) {
          cat = kid.value();
        }
        if ( ! cat.startsWith("VP")) {
          continue;
        }
        if (DEBUG) {
          System.err.println("hasPassiveProgressiveAuxiliary found VP");
        }
        Tree[] kidkids = kid.children();
        boolean foundParticipleInVp = false;
        for (Tree kidkid : kidkids) {
          if (DEBUG) {
            System.err.println("  hasPassiveProgressiveAuxiliary examining " + kidkid);
          }
          if (kidkid.isPreTerminal()) {
            Label kidkidLabel = kidkid.label();
            String tag = null;
            if (kidkidLabel instanceof HasTag) {
              tag = ((HasTag) kidkidLabel).tag();
            }
            if (tag == null) {

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    for (Tree kid : t.children()) {
      if (DEBUG) {
        System.err.println("vpContainsParticiple examining " + kid);
      }
      if (kid.isPreTerminal()) {
        Label kidLabel = kid.label();
        String tag = null;
        if (kidLabel instanceof HasTag) {
          tag = ((HasTag) kidLabel).tag();
        }
        if (tag == null) {

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    this.transform = transform;
  }


  public Tree transformTree(Tree tree) {
    for (Tree leaf : tree.getLeaves()) {
      Label label = leaf.label();
      label.setValue(transform.apply(label.value()));
    }
    return tree;
  }

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    return getNext(txt, originalText, null);
  }


  private Object getNext(String txt, String originalText, String annotation) {
    txt = removeSoftHyphens(txt);
    Label w = (Label) tokenFactory.makeToken(txt, yychar, yylength());
    if (invertible || annotation != null) {
      CoreLabel word = (CoreLabel) w;
      if (invertible) {
        String str = prevWordAfter.toString();
        prevWordAfter.setLength(0);

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          nerChunks.add(nerChunk);
          Tree t = getTreeNonTerminal(tree, startToken, endToken, true);
          if (t.getSpan().getSource() == startToken && t.getSpan().getTarget() == endToken) {
            nerChunk.set(TreeCoreAnnotations.TreeAnnotation.class, t);
            if (options.annotateTreeNer) {
              Label tlabel = t.label();
              if (tlabel instanceof CoreLabel) {
                ((CoreLabel) tlabel).set(NamedEntityAnnotation.class, nerChunk);
              }
            }
          }
        }


        List<Triple<Integer,Integer,String>> corefSpans = getCorefSpans(sentWords);
        for (Triple<Integer,Integer,String> corefSpan:corefSpans) {
          int startToken = corefSpan.first();
          int endToken = corefSpan.second(); /* inclusive */
          String corefId = corefSpan.third();
          CoreMap mention = ChunkAnnotationUtils.getAnnotatedChunk(sentence, startToken, endToken+1);
          mention.set(CorefCoreAnnotations.CorefAnnotation.class, corefId);
          mention.set(CoreAnnotations.SentenceIndexAnnotation.class, sentence.get(CoreAnnotations.SentenceIndexAnnotation.class));
          corefChainMap.add(corefId, mention);
          Tree t = getTreeNonTerminal(tree, startToken, endToken, true);
          mention.set(TreeCoreAnnotations.TreeAnnotation.class, t);
          if (options.annotateTreeCoref) {
            Label tlabel = t.label();
            if (tlabel instanceof CoreLabel) {
              ((CoreLabel) tlabel).set(CorefMentionAnnotation.class, mention);
            }
          }
        }

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            npt2 = npt;
          } else {
            mentionTreePretermNonPretermNoMatchLabelCounter.incrementCount(t.label().value());
            logger.info("NPT: Tree span is " + span + ", tree node is " + npt);
            logger.info("NPT: Mention span is " + tokenStart + " " + (tokenEnd - 1) + ", mention is " + m);
            Label tlabel = t.label();
            if (tlabel instanceof CoreLabel) {
              CoreMap mention = ((CoreLabel) tlabel).get(CorefMentionAnnotation.class);
              String corefClusterId = mention.get(CorefCoreAnnotations.CorefAnnotation.class);
              Collection<CoreMap> clusteredMentions = doc.corefChainMap.get(corefClusterId);
              for (CoreMap m2:clusteredMentions) {
                logger.info("NPT: Clustered mention " + m2.get(CoreAnnotations.TextAnnotation.class));
              }
            }


          }
          totalMentions++;
          mentionTreeLabelCounter.incrementCount(t.label().value());
          mentionTreeNonPretermLabelCounter.incrementCount(npt.label().value());
          mentionTreeMixedLabelCounter.incrementCount(npt2.label().value());
          Label tlabel = t.label();
          if (tlabel instanceof CoreLabel) {
            if (((CoreLabel) tlabel).containsKey(NamedEntityAnnotation.class)) {
              // walk up tree
              nerMentions++;
              nerMentionTokenLengthCounter.incrementCount(length);


              Tree parent = t.parent(root);
              while (parent != null) {
                Label plabel = parent.label();
                if (plabel instanceof CoreLabel) {
                  if (((CoreLabel) plabel).containsKey(NamedEntityAnnotation.class)) {
                    logger.info("NER Mention: " + m);
                    CoreMap parentNerChunk = ((CoreLabel) plabel).get(NamedEntityAnnotation.class);
                    logger.info("Nested inside NER Mention: " + parentNerChunk);

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    public boolean test(Tree tree) {
      if (tree == null) {
        return false;
      }
      for (Tree child : tree.children()) {
        Label label = child.label();
        String value = (label == null) ? null : label.value();
        if (value == null) {
          continue;
        }
        if (pattern.matcher(value).matches()) {
          return true;

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   * Converts the tree labels to CoreLabels.
   * We need this because we store additional info in the CoreLabel, like token span.
   * @param tree
   */
  public static void convertToCoreLabels(Tree tree) {
    Label l = tree.label();
    if(! (l instanceof CoreLabel)){
      CoreLabel cl = new CoreLabel();
      cl.setValue(l.value());
      tree.setLabel(cl);
    }


    for (Tree kid : tree.children()) {
      convertToCoreLabels(kid);

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  private Map<Label,Set<Constituent>> makeObjectsByCat(Tree t) {
    Map<Label,Set<Constituent>> objMap = Generics.newHashMap();
    Set<Constituent> objSet = makeObjects(t);
    for (Constituent lc : objSet) {
      Label l = lc.label();
      if (!objMap.keySet().contains(l)) {
        objMap.put(l, Generics.<Constituent>newHashSet());
      }
      objMap.get(l).add(lc);
    }

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   * @return The full string representation.
   */
  @Override
  public String toString() {
    StringBuffer sb;
    Label lab = label();
    if (lab != null) {
      sb = new StringBuffer(lab.toString());
    } else {
      sb = new StringBuffer();
    }
    sb.append("(").append(start()).append(",").append(end()).append(")");
    return sb.toString();

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