Ejemplo n.º 1
0
  public void printPerformance(InstanceList instanceList, String description) {
    System.out.println(description);
    System.out.println("Accuracy: " + classifier.getAccuracy(instanceList));
    LabelAlphabet labelAlphabet = classifier.getLabelAlphabet();
    Iterator iterator = labelAlphabet.iterator();
    while (iterator.hasNext()) {
      Object label = iterator.next();
      double p = classifier.getPrecision(instanceList, label);
      double r = classifier.getRecall(instanceList, label);
      double f1 = classifier.getF1(instanceList, label);

      System.out.println("Precision[" + label + "] = " + p);
      System.out.println("Recall[" + label + "] = " + r);
      System.out.println("F1[" + label + "] = " + f1);
      System.out.println("");
    }

    ExtendedTrial trial = new ExtendedTrial(classifier, instanceList);
    System.out.println("Overall performance\n=====");
    System.out.println("Precision: " + trial.getPrecision());
    System.out.println("Recall: " + trial.getRecall());
    System.out.println("F1: " + trial.getF1());
    System.out.println("Fall-out: " + trial.getFallOut());

    trial.showErrors();
  }
 private Label labelForTok(String tok, int lvl) {
   while (labelDicts.size() <= lvl) {
     labelDicts.add(new LabelAlphabet());
   }
   LabelAlphabet dict = (LabelAlphabet) labelDicts.get(lvl);
   return dict.lookupLabel(tok);
 }
  @Override
  public Instance pipe(Instance carrier) {
    Arg1RankInstance instance = (Arg1RankInstance) carrier;

    Document document = (Document) instance.getData();
    List<Pair<Integer, Integer>> candidates = instance.getCandidates();
    int connStart = instance.getConnStart();
    int connEnd = instance.getConnEnd();
    int arg2Line = instance.getArg2Line();
    int arg2HeadPos = instance.getArg2HeadPos();

    FeatureVector fvs[] = new FeatureVector[candidates.size()];

    for (int i = 0; i < candidates.size(); i++) {
      Pair<Integer, Integer> candidate = candidates.get(i);
      PropertyList pl = null;
      pl = addBaselineFeatures(pl, document, candidate, arg2Line, arg2HeadPos, connStart, connEnd);
      pl =
          addConstituentFeatures(
              pl, document, candidate, arg2Line, arg2HeadPos, connStart, connEnd);
      pl =
          addDependencyFeatures(pl, document, candidate, arg2Line, arg2HeadPos, connStart, connEnd);
      // pl = addLexicoSyntacticFeatures(pl, document, candidate, arg2Line, arg2HeadPos, connStart,
      // connEnd);

      fvs[i] = new FeatureVector(getDataAlphabet(), pl, true, true);
    }

    // set target label
    LabelAlphabet ldict = (LabelAlphabet) getTargetAlphabet();
    carrier.setTarget(ldict.lookupLabel(String.valueOf(instance.getTrueArg1Candidate())));
    carrier.setData(new FeatureVectorSequence(fvs));

    return carrier;
  }
Ejemplo n.º 4
0
  /**
   * converts the sentence based instance list into a token based one This is needed for the
   * ME-version of JET (JetMeClassifier)
   *
   * @param METrainerDummyPipe
   * @param inst just the features for one sentence to be transformed
   * @return
   */
  public static InstanceList convertFeatsforClassifier(
      final Pipe METrainerDummyPipe, final Instance inst) {

    final InstanceList iList = new InstanceList(METrainerDummyPipe);

    final FeatureVectorSequence fvs = (FeatureVectorSequence) inst.getData();
    final LabelSequence ls = (LabelSequence) inst.getTarget();
    final LabelAlphabet ldict = (LabelAlphabet) ls.getAlphabet();
    final Object source = inst.getSource();
    final Object name = inst.getName();

    if (ls.size() != fvs.size()) {
      System.err.println(
          "failed making token instances: size of labelsequence != size of featue vector sequence: "
              + ls.size()
              + " - "
              + fvs.size());
      System.exit(-1);
    }

    for (int j = 0; j < fvs.size(); j++) {
      final Instance I =
          new Instance(fvs.getFeatureVector(j), ldict.lookupLabel(ls.get(j)), name, source);
      iList.add(I);
    }

    return iList;
  }