Examples with PMMLPredicate org.knime.base.node.mine.decisiontree2.PMMLPredicate used on opensource projects

Example 31 with PMMLPredicate

use of org.knime.base.node.mine.decisiontree2.PMMLPredicate in project knime-core by knime.

the class PMMLRuleTranslator method collectPredicates.

/**
 * The predicates of a {@link CompoundRule} in the order they appear.
 *
 * @param compoundRule An xml {@link CompoundRule}.
 * @return The flat list of {@link PMMLPredicate}s.
 */
private List<PMMLPredicate> collectPredicates(final CompoundRule compoundRule) {
    List<PMMLPredicate> ret = new ArrayList<PMMLPredicate>();
    XmlCursor cursor = compoundRule.newCursor();
    if (cursor.toFirstChild()) {
        do {
            XmlObject object = cursor.getObject();
            if (object instanceof CompoundRuleDocument.CompoundRule) {
                CompoundRuleDocument.CompoundRule cr = (CompoundRuleDocument.CompoundRule) object;
                ret.addAll(collectPredicates(cr));
            } else if (object instanceof SimpleRule) {
                SimpleRule sr = (SimpleRule) object;
                ret.add(createRule(sr).getCondition());
            } else if (object instanceof SimplePredicate) {
                SimplePredicate sp = (SimplePredicate) object;
                ret.add(parseSimplePredicate(sp));
            } else if (object instanceof CompoundPredicate) {
                CompoundPredicate cp = (CompoundPredicate) object;
                ret.add(parseCompoundPredicate(cp));
            }
        } while (cursor.toNextSibling());
    }
    return ret;
}

Example 32 with PMMLPredicate

use of org.knime.base.node.mine.decisiontree2.PMMLPredicate in project knime-core by knime.

the class PMMLRuleTranslator method setPredicate.

/**
 * As the predicates can be of different subclasses of {@link PMMLPredicate}, creating them adding their properties
 * to the {@code simpleRule} is done with this method.
 *
 * @param simpleRule An xml {@link SimpleRule} (recently created).
 * @param predicate A {@link PMMLPredicate} with preferably from the Rule versions of
 *            {@link PMMLRuleSimplePredicate} and {@link PMMLRuleCompoundPredicate}.
 * @since 2.12
 */
public void setPredicate(final SimpleRule simpleRule, final PMMLPredicate predicate) {
    if (predicate instanceof PMMLFalsePredicate) {
        simpleRule.addNewFalse();
    } else if (predicate instanceof PMMLTruePredicate) {
        simpleRule.addNewTrue();
    } else if (predicate instanceof PMMLSimplePredicate) {
        PMMLSimplePredicate simple = (PMMLSimplePredicate) predicate;
        SimplePredicate pred = simpleRule.addNewSimplePredicate();
        pred.setField(simple.getSplitAttribute());
        setOperator(pred, simple);
        if (simple.getThreshold() != null) {
            pred.setValue(simple.getThreshold());
        }
    } else if (predicate instanceof PMMLCompoundPredicate) {
        PMMLCompoundPredicate comp = (PMMLCompoundPredicate) predicate;
        CompoundPredicate p = simpleRule.addNewCompoundPredicate();
        setCompound(p, comp);
    } else if (predicate instanceof PMMLSimpleSetPredicate) {
        PMMLSimpleSetPredicate set = (PMMLSimpleSetPredicate) predicate;
        SimpleSetPredicate s = simpleRule.addNewSimpleSetPredicate();
        setSetPredicate(s, set);
    }
}

Example 33 with PMMLPredicate

use of org.knime.base.node.mine.decisiontree2.PMMLPredicate in project knime-core by knime.

the class PMMLRuleTranslator method createRule.

/**
 * The compound rules are tricky... We have to pull each simple rule out of them in order and find the first simple
 * rule to get the outcome. The result is a simple {@link Rule}.
 *
 * @param compoundRule An xml {@link CompoundRule}.
 * @return The corresponding {@link Rule}.
 */
private Rule createRule(final CompoundRule compoundRule) {
    final LinkedList<PMMLPredicate> predicates = new LinkedList<PMMLPredicate>();
    predicates.addAll(collectPredicates(compoundRule));
    final PMMLCompoundPredicate condition = newCompoundPredicate(PMMLBooleanOperator.AND.toString());
    condition.setPredicates(predicates);
    // This is suspicious, as the later outcomes are discarded, but this is the right thing
    // according to the spec 4.1 (http://www.dmg.org/v4-1/RuleSet.html)
    final SimpleRule firstRule = findFirst(compoundRule);
    if (firstRule == null) {
        throw new IllegalStateException("No SimpleRule was found in " + compoundRule);
    }
    return new Rule(condition, firstRule.getScore(), firstRule.isSetWeight() ? firstRule.getWeight() : null, firstRule.isSetConfidence() ? firstRule.getConfidence() : null);
}

Example 34 with PMMLPredicate

use of org.knime.base.node.mine.decisiontree2.PMMLPredicate in project knime-core by knime.

the class PMMLRuleTranslator method setPredicate.

/**
 * For an xml {@link CompoundPredicate} ({@code cp}) sets the parameters based on {@code pred}'s properties.
 *
 * @param cp An xml {@link CompoundPredicate}.
 * @param pred The {@link PMMLPredicate} with the rule version subclasses.
 */
private void setPredicate(final CompoundPredicate cp, final PMMLPredicate pred) {
    if (pred instanceof PMMLFalsePredicate) {
        cp.addNewFalse();
    } else if (pred instanceof PMMLTruePredicate) {
        cp.addNewTrue();
    } else if (pred instanceof PMMLSimplePredicate) {
        PMMLSimplePredicate simple = (PMMLSimplePredicate) pred;
        SimplePredicate s = cp.addNewSimplePredicate();
        s.setField(simple.getSplitAttribute());
        setOperator(s, simple);
        s.setValue(simple.getThreshold());
    } else if (pred instanceof PMMLCompoundPredicate) {
        PMMLCompoundPredicate compound = (PMMLCompoundPredicate) pred;
        CompoundPredicate c = cp.addNewCompoundPredicate();
        setCompound(c, compound);
    } else if (pred instanceof PMMLSimpleSetPredicate) {
        PMMLSimpleSetPredicate set = (PMMLSimpleSetPredicate) pred;
        SimpleSetPredicate ss = cp.addNewSimpleSetPredicate();
        setSetPredicate(ss, set);
    }
}

Example 35 with PMMLPredicate

use of org.knime.base.node.mine.decisiontree2.PMMLPredicate in project knime-core by knime.

the class RuleSetToTable method convertToStringPrecedence.

/**
 * @param condition A {@link PMMLPredicate}.
 * @param usePrecedence Should we simplify the condition?
 * @param parentOperator The parent operator's (logical connective) type, used for precedence, can be {@code null}.
 * @param types The type of input columns.
 * @return Converted {@code condition} with precedence.
 */
private static String convertToStringPrecedence(final PMMLPredicate condition, final boolean usePrecedence, final PMMLBooleanOperator parentOperator, final Map<String, DataType> types) {
    if (condition instanceof PMMLTruePredicate) {
        return "TRUE";
    }
    if (condition instanceof PMMLFalsePredicate) {
        return "FALSE";
    }
    if (condition instanceof PMMLSimplePredicate) {
        PMMLSimplePredicate sp = (PMMLSimplePredicate) condition;
        DataType dataType = types.get(sp.getSplitAttribute());
        switch(sp.getOperator()) {
            // intentional fall-through
            case EQUAL:
            // intentional fall-through
            case GREATER_OR_EQUAL:
            // intentional fall-through
            case GREATER_THAN:
            // intentional fall-through
            case LESS_OR_EQUAL:
            case LESS_THAN:
                return dollars(sp.getSplitAttribute()) + " " + sp.getOperator().getSymbol() + " " + asComparisonValue(sp.getThreshold(), dataType);
            case NOT_EQUAL:
                return "NOT " + dollars(sp.getSplitAttribute()) + " = " + asComparisonValue(sp.getThreshold(), dataType);
            case IS_MISSING:
                return "MISSING " + dollars(sp.getSplitAttribute());
            case IS_NOT_MISSING:
                return "NOT MISSING " + dollars(sp.getSplitAttribute());
            default:
                throw new UnsupportedOperationException("Unknown operator: " + sp.getOperator());
        }
    }
    if (condition instanceof PMMLSimpleSetPredicate) {
        PMMLSimpleSetPredicate ssp = (PMMLSimpleSetPredicate) condition;
        DataType dataType = types.get(ssp.getSplitAttribute());
        switch(ssp.getSetOperator()) {
            case IS_IN:
                return dollars(ssp.getSplitAttribute()) + " IN (" + asComparisonValues(ssp.getValues(), dataType) + ")";
            case IS_NOT_IN:
                return "NOT " + dollars(ssp.getSplitAttribute()) + " IN (" + asComparisonValues(ssp.getValues(), dataType) + ")";
            default:
                throw new UnsupportedOperationException("Unknown operator: " + ssp.getOperator());
        }
    }
    if (condition instanceof PMMLCompoundPredicate) {
        PMMLCompoundPredicate cp = (PMMLCompoundPredicate) condition;
        List<PMMLPredicate> predicates = cp.getPredicates();
        switch(cp.getBooleanOperator()) {
            case AND:
                // never parentheses, parent XOR, OR, AND, nothing: all fine, SURROGATE is not supported
                return parentheses(!usePrecedence, join(PMMLBooleanOperator.AND, cp, types, usePrecedence));
            case OR:
                // if not nothing or OR, we have to use parentheses
                return parentheses(!usePrecedence || (predicates.size() > 1 && parentOperator != null && parentOperator != PMMLBooleanOperator.OR), join(PMMLBooleanOperator.OR, cp, types, usePrecedence));
            case XOR:
                // if not nothing or XOR or OR, we have to use parentheses, so when it is an AND
                return parentheses(!usePrecedence || (predicates.size() > 1 && parentOperator == PMMLBooleanOperator.AND), join(PMMLBooleanOperator.XOR, cp, types, usePrecedence));
            case SURROGATE:
                {
                    CheckUtils.checkState(predicates.size() > 1, "At least two arguments are required for SURROGATE, but got only: " + predicates.size() + "\nValues: " + predicates);
                    return handleSurrogate(cp, predicates, usePrecedence, parentOperator, types);
                }
            default:
                throw new UnsupportedOperationException("Unknown operator: " + cp.getOperator());
        }
    }
    throw new IllegalArgumentException("Unknown predicate type: " + condition + " (" + condition.getClass());
}