Package aima.core.learning.knowledge

Examples of aima.core.learning.knowledge.FOLExample

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  public void train(DataSet ds) {
    folDSDomain = new FOLDataSetDomain(ds.specification, trueGoalValue);
    List<FOLExample> folExamples = new ArrayList<FOLExample>();
    int egNo = 1;
    for (Example e : ds.examples) {
      folExamples.add(new FOLExample(folDSDomain, e, egNo));
      egNo++;
    }

    // Setup a KB to be used for learning
    kb = new FOLKnowledgeBase(folDSDomain, new FOLOTTERLikeTheoremProver(
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  }

  public String predict(Example e) {
    String prediction = "~" + e.targetValue();
    if (null != currentBestHypothesis) {
      FOLExample etp = new FOLExample(folDSDomain, e, 0);
      kb.clear();
      kb.tell(etp.getDescription());
      kb.tell(currentBestHypothesis.getHypothesis());
      InferenceResult ir = kb.ask(etp.getClassification());
      if (ir.isTrue()) {
        if (trueGoalValue.equals(e.targetValue())) {
          prediction = e.targetValue();
        }
      } else if (ir.isPossiblyFalse() || ir.isUnknownDueToTimeout()) {
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Related Classes of aima.core.learning.knowledge.FOLExample

  • aima.core.learning.learners.CurrentBestLearner
  • aima.core.logic.fol.parsing.ast.ConnectedSentence
  • aima.core.logic.fol.parsing.ast.Constant
  • aima.core.logic.fol.parsing.ast.NotSentence
  • aima.core.logic.fol.parsing.ast.Predicate
  • aima.core.logic.fol.parsing.ast.Sentence
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