Examples with TruthValue nars.entity.TruthValue used on opensource projects

Example 51 with TruthValue

use of nars.entity.TruthValue in project opennars by opennars.

the class StructuralRules method flattenSequence.

/* --------------- Flatten sequence transform --------------- */
/**
 * {(#,(#,A,B),C), (#,A,B)@(#,(#,A,B), C)} |- (#,A,B,C)
 * (same for &/)
 * @param compound The premise
 * @param component The recognized component in the premise
 * @param compoundTask Whether the compound comes from the task
 * @param nal Reference to the memory
 */
static void flattenSequence(CompoundTerm compound, Term component, boolean compoundTask, int index, DerivationContext nal) {
    if (compound instanceof Conjunction && component instanceof Conjunction) {
        Conjunction conjCompound = (Conjunction) compound;
        Conjunction conjComponent = (Conjunction) component;
        if (// since parallel conjunction and normal one already is flattened
        conjCompound.getTemporalOrder() == TemporalRules.ORDER_FORWARD && conjComponent.getTemporalOrder() == TemporalRules.ORDER_FORWARD && conjCompound.getIsSpatial() == conjComponent.getIsSpatial()) {
            // because also when both are tmporal
            Term[] newTerm = new Term[conjCompound.size() - 1 + conjComponent.size()];
            System.arraycopy(conjCompound.term, 0, newTerm, 0, index);
            System.arraycopy(conjComponent.term, 0, newTerm, index + 0, conjComponent.size());
            System.arraycopy(conjCompound.term, index + conjComponent.size() - conjComponent.size() + 1, newTerm, index + conjComponent.size(), newTerm.length - (index + conjComponent.size()));
            Conjunction cont = (Conjunction) Conjunction.make(newTerm, conjCompound.getTemporalOrder(), conjCompound.getIsSpatial());
            TruthValue truth = nal.getCurrentTask().sentence.truth.clone();
            BudgetValue budget = BudgetFunctions.forward(truth, nal);
            nal.singlePremiseTask(cont, truth, budget);
        }
    }
}

Example 52 with TruthValue

use of nars.entity.TruthValue in project opennars by opennars.

the class StructuralRules method transformSetRelation.

/* -------------------- set transform -------------------- */
/**
 * {<S --> {P}>} |- <S <-> {P}>
 *
 * @param compound The set compound
 * @param statement The premise
 * @param side The location of the indicated term in the premise
 * @param nal Reference to the memory
 */
static void transformSetRelation(CompoundTerm compound, Statement statement, short side, DerivationContext nal) {
    if (compound.size() > 1) {
        return;
    }
    if (statement instanceof Inheritance) {
        if (((compound instanceof SetExt) && (side == 0)) || ((compound instanceof SetInt) && (side == 1))) {
            return;
        }
    }
    Term sub = statement.getSubject();
    Term pre = statement.getPredicate();
    Statement content;
    if (statement instanceof Inheritance) {
        content = Similarity.make(sub, pre);
    } else {
        if (((compound instanceof SetExt) && (side == 0)) || ((compound instanceof SetInt) && (side == 1))) {
            content = Inheritance.make(pre, sub);
        } else {
            content = Inheritance.make(sub, pre);
        }
    }
    if (content == null) {
        return;
    }
    Task task = nal.getCurrentTask();
    Sentence sentence = task.sentence;
    TruthValue truth = sentence.truth;
    BudgetValue budget;
    if (sentence.isJudgment()) {
        budget = BudgetFunctions.compoundForward(truth, content, nal);
    } else {
        budget = BudgetFunctions.compoundBackward(content, nal);
    }
    nal.singlePremiseTask(content, truth, budget);
}

Example 53 with TruthValue

use of nars.entity.TruthValue in project opennars by opennars.

the class StructuralRules method structuralDecompose1.

/**
 * {<(S|T) --> P>, S@(S|T)} |- <S --> P> {<S --> (P&T)>, P@(P&T)} |- <S --> P>
 *
 * @param compound The compound term
 * @param index The location of the indicated term in the compound
 * @param statement The premise
 * @param nal Reference to the memory
 */
static void structuralDecompose1(CompoundTerm compound, short index, Statement statement, DerivationContext nal) {
    if (index >= compound.term.length) {
        return;
    }
    Term component = compound.term[index];
    Task task = nal.getCurrentTask();
    Sentence sentence = task.sentence;
    int order = sentence.getTemporalOrder();
    TruthValue truth = sentence.truth;
    if (truth == null) {
        return;
    }
    final float reliance = Parameters.reliance;
    TruthValue truthDed = TruthFunctions.deduction(truth, reliance);
    TruthValue truthNDed = TruthFunctions.negation(TruthFunctions.deduction(truth, reliance));
    Term subj = statement.getSubject();
    Term pred = statement.getPredicate();
    if (compound.equals(subj)) {
        if (compound instanceof IntersectionInt) {
            structuralStatement(component, pred, order, truthDed, nal);
        } else if ((compound instanceof SetExt) && (compound.size() > 1)) {
            Term[] t1 = new Term[] { component };
            structuralStatement(new SetExt(t1), pred, order, truthDed, nal);
        } else if (compound instanceof DifferenceInt) {
            if (index == 0) {
                structuralStatement(component, pred, order, truthDed, nal);
            } else {
                structuralStatement(component, pred, order, truthNDed, nal);
            }
        }
    } else if (compound.equals(pred)) {
        if (compound instanceof IntersectionExt) {
            structuralStatement(subj, component, order, truthDed, nal);
        } else if ((compound instanceof SetInt) && (compound.size() > 1)) {
            structuralStatement(subj, new SetInt(component), order, truthDed, nal);
        } else if (compound instanceof DifferenceExt) {
            if (index == 0) {
                structuralStatement(subj, component, order, truthDed, nal);
            } else {
                structuralStatement(subj, component, order, truthNDed, nal);
            }
        }
    }
}

Example 54 with TruthValue

use of nars.entity.TruthValue in project opennars by opennars.

the class StructuralRules method structuralCompose2.

/* -------------------- transform between compounds and term -------------------- */
/**
 * {<S --> P>, S@(S&T)} |- <(S&T) --> (P&T)> {<S --> P>, S@(M-S)} |- <(M-P)
 * --> (M-S)>
 *
 * @param compound The compound term
 * @param index The location of the indicated term in the compound
 * @param statement The premise
 * @param side The location of the indicated term in the premise
 * @param nal Reference to the memory
 */
static void structuralCompose2(CompoundTerm compound, short index, Statement statement, short side, DerivationContext nal) {
    if (compound.equals(statement.term[side])) {
        return;
    }
    Term sub = statement.getSubject();
    Term pred = statement.getPredicate();
    List<Term> components = compound.asTermList();
    if (((side == 0) && components.contains(pred)) || ((side == 1) && components.contains(sub))) {
        return;
    }
    if (side == 0) {
        if (components.contains(sub)) {
            sub = compound;
            components.set(index, pred);
            pred = Terms.term(compound, components);
        }
    } else {
        if (components.contains(pred)) {
            components.set(index, sub);
            sub = Terms.term(compound, components);
            pred = compound;
        }
    }
    if ((sub == null) || (pred == null))
        return;
    Statement content;
    int order = statement.getTemporalOrder();
    if (switchOrder(compound, index)) {
        content = Statement.make(statement, pred, sub, TemporalRules.reverseOrder(order));
    } else {
        content = Statement.make(statement, sub, pred, order);
    }
    if (content == null)
        return;
    Sentence sentence = nal.getCurrentTask().sentence;
    TruthValue truth = TruthFunctions.deduction(sentence.truth, Parameters.reliance);
    BudgetValue budget = BudgetFunctions.compoundForward(truth, content, nal);
    nal.singlePremiseTask(content, truth, budget);
}

Example 55 with TruthValue

use of nars.entity.TruthValue in project opennars by opennars.

the class StructuralRules method transformPredicatePI.

/**
 * Equivalent transformation between products and images when the predicate
 * is a compound {<(*, S, M) --> P>, S@(*, S, M)} |- <S --> (/, P, _, M)>
 * {<S --> (/, P, _, M)>, P@(/, P, _, M)} |- <(*, S, M) --> P> {<S --> (/,
 * P, _, M)>, M@(/, P, _, M)} |- <M --> (/, P, S, _)>
 *
 * @param subject The subject term
 * @param predicate The predicate term
 * @param nal Reference to the memory
 */
private static void transformPredicatePI(short index, Term subject, CompoundTerm predicate, DerivationContext nal) {
    TruthValue truth = nal.getCurrentTask().sentence.truth;
    BudgetValue budget;
    Inheritance inheritance;
    Term newSubj, newPred;
    if (predicate instanceof Product) {
        Product product = (Product) predicate;
        short i = index;
        /*for (short i = 0; i < product.size(); i++)*/
        {
            newSubj = ImageInt.make(product, subject, i);
            newPred = product.term[i];
            inheritance = Inheritance.make(newSubj, newPred);
            if (inheritance != null) {
                if (truth == null) {
                    budget = BudgetFunctions.compoundBackward(inheritance, nal);
                } else {
                    budget = BudgetFunctions.compoundForward(truth, inheritance, nal);
                }
                nal.singlePremiseTask(inheritance, truth, budget);
            }
        }
    } else if (predicate instanceof ImageExt) {
        ImageExt image = (ImageExt) predicate;
        int relationIndex = image.relationIndex;
        for (short i = 0; i < image.size(); i++) {
            if (i == relationIndex) {
                newSubj = Product.make(image, subject, relationIndex);
                newPred = image.term[relationIndex];
            } else {
                newSubj = image.term[i];
                newPred = ImageExt.make(image, subject, i);
            }
            if (newSubj instanceof CompoundTerm && (newPred.equals(Term.SEQ_TEMPORAL) || newPred.equals(Term.SEQ_SPATIAL))) {
                Term seq = Conjunction.make(((CompoundTerm) newSubj).term, TemporalRules.ORDER_FORWARD, newPred.equals(Term.SEQ_SPATIAL));
                if (truth == null) {
                    budget = BudgetFunctions.compoundBackward(seq, nal);
                } else {
                    budget = BudgetFunctions.compoundForward(truth, seq, nal);
                }
                nal.singlePremiseTask(seq, truth, budget);
                return;
            }
            inheritance = Inheritance.make(newSubj, newPred);
            if (inheritance != null) {
                // jmv <<<<<
                if (truth == null) {
                    budget = BudgetFunctions.compoundBackward(inheritance, nal);
                } else {
                    budget = BudgetFunctions.compoundForward(truth, inheritance, nal);
                }
                nal.singlePremiseTask(inheritance, truth, budget);
            }
        }
    }
}