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

Example 61 with TruthValue

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

the class SyllogisticRules method elimiVarDep.

/**
 * {(&&, <#x() --> S>, <#x() --> P>>, <M --> P>} |- <M --> S>
 *
 * @param compound The compound term to be decomposed
 * @param component The part of the compound to be removed
 * @param compoundTask Whether the compound comes from the task
 * @param nal Reference to the memory
 */
static void elimiVarDep(CompoundTerm compound, Term component, boolean compoundTask, DerivationContext nal) {
    Term comp = null;
    for (Term t : compound) {
        Term[] unify = new Term[] { t, component };
        if (Variables.unify(Symbols.VAR_DEPENDENT, unify)) {
            comp = t;
            break;
        }
        if (Variables.unify(Symbols.VAR_QUERY, unify)) {
            comp = t;
            break;
        }
    }
    if (comp == null) {
        return;
    }
    Term content = reduceComponents(compound, comp, nal.mem());
    if ((content == null) || ((content instanceof Statement) && ((Statement) content).invalid())) {
        return;
    }
    Task task = nal.getCurrentTask();
    Sentence sentence = task.sentence;
    Sentence belief = nal.getCurrentBelief();
    TruthValue v1 = sentence.truth;
    TruthValue v2 = belief.truth;
    TruthValue truth = null;
    BudgetValue budget;
    if (sentence.isQuestion() || sentence.isQuest()) {
        budget = (compoundTask ? BudgetFunctions.backward(v2, nal) : BudgetFunctions.backwardWeak(v2, nal));
    } else {
        if (sentence.isGoal()) {
            // to check
            truth = (compoundTask ? TruthFunctions.desireDed(v1, v2) : TruthFunctions.desireInd(v1, v2));
        } else {
            truth = (compoundTask ? TruthFunctions.anonymousAnalogy(v1, v2) : TruthFunctions.anonymousAnalogy(v2, v1));
        }
        budget = BudgetFunctions.compoundForward(truth, content, nal);
    }
    nal.doublePremiseTask(content, truth, budget, false, false);
}

Example 62 with TruthValue

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

the class TruthFunctions method anonymousAnalogy.

/**
 * {(&&, <#x() ==> M>, <#x() ==> P>), S ==> M} |- <S ==> P>
 * @param v1 Truth value of the first premise
 * @param v2 Truth value of the second premise
 * @return Truth value of the conclusion
 */
static final TruthValue anonymousAnalogy(final TruthValue v1, final TruthValue v2) {
    final float f1 = v1.getFrequency();
    final float c1 = v1.getConfidence();
    final TruthValue v0 = new TruthValue(f1, w2c(c1));
    return analogy(v2, v0);
}

Example 63 with TruthValue

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

the class Anticipate method deriveDidntHappen.

protected void deriveDidntHappen(Term aTerm, long expectedOccurenceTime) {
    TruthValue truth = expiredTruth;
    BudgetValue budget = expiredBudget;
    Stamp stamp = new Stamp(nal.memory);
    // stamp.setOccurrenceTime(nal.memory.time());
    // it did not happen, so the time of when it did not
    stamp.setOccurrenceTime(expectedOccurenceTime);
    // happen is exactly the time it was expected
    Sentence S = new Sentence(aTerm, Symbols.JUDGMENT_MARK, truth, stamp);
    Task task = new Task(S, budget, true);
    nal.derivedTask(task, false, true, false);
    task.setElemOfSequenceBuffer(true);
    nal.memory.emit(DISAPPOINT.class, task);
}

Example 64 with TruthValue

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

the class Feel method feeling.

/**
 * To get the current value of an internal sensor
 *
 * @param value The value to be checked, in [0, 1]
 * @param memory The memory in which the operation is executed
 * @return Immediate results as Tasks
 */
protected ArrayList<Task> feeling(float value, Memory memory) {
    Stamp stamp = new Stamp(memory, Tense.Present);
    TruthValue truth = new TruthValue(value, Parameters.DEFAULT_JUDGMENT_CONFIDENCE);
    Term predicate = new SetInt(feelingTerm);
    Term content = Inheritance.make(selfSubject, predicate);
    Sentence sentence = new Sentence(content, Symbols.JUDGMENT_MARK, truth, stamp);
    float quality = BudgetFunctions.truthToQuality(truth);
    BudgetValue budget = new BudgetValue(Parameters.DEFAULT_JUDGMENT_PRIORITY, Parameters.DEFAULT_JUDGMENT_DURABILITY, quality);
    return Lists.newArrayList(new Task(sentence, budget, true));
}