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

Example 6 with Concept

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

the class ConceptMonitor method strongestPrecondition.

public static Sentence strongestPrecondition(NAR nar, String conc, String statement) {
    Concept c = ConceptMonitor.concept(nar, conc);
    Term st = stringToTerm(nar, statement);
    if (c != null && st != null) {
        for (Task t : c.executable_preconditions) {
            if (CompoundTerm.replaceIntervals(t.getTerm()).equals(CompoundTerm.replaceIntervals(st))) {
                return t.sentence;
            }
        }
    }
    return null;
}

Example 7 with Concept

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

the class Memory method conceptualize.

/**
 * Get the Concept associated to a Term, or create it.
 *
 *   Existing concept: apply tasklink activation (remove from bag, adjust budget, reinsert)
 *   New concept: set initial activation, insert
 *   Subconcept: extract from cache, apply activation, insert
 *
 * If failed to insert as a result of null bag, returns null
 *
 * A displaced Concept resulting from insert is forgotten (but may be stored in optional  subconcept memory
 *
 * @param term indicating the concept
 * @return an existing Concept, or a new one, or null
 */
public Concept conceptualize(final BudgetValue budget, Term term) {
    if (term instanceof Interval) {
        return null;
    }
    term = CompoundTerm.replaceIntervals(term);
    // see if concept is active
    Concept concept = concepts.take(term);
    if (concept == null) {
        // create new concept, with the applied budget
        concept = new Concept(budget, term, this);
        // if (memory.logic!=null)
        // memory.logic.CONCEPT_NEW.commit(term.getComplexity());
        emit(Events.ConceptNew.class, concept);
    } else if (concept != null) {
        // apply budget to existing concept
        // memory.logic.CONCEPT_ACTIVATE.commit(term.getComplexity());
        BudgetFunctions.activate(concept.budget, budget, BudgetFunctions.Activating.TaskLink);
    } else {
        // unable to create, ex: has variables
        return null;
    }
    Concept displaced = concepts.putBack(concept, cycles(param.conceptForgetDurations), this);
    if (displaced == null) {
        // added without replacing anything
        return concept;
    } else if (displaced == concept) {
        // not able to insert
        conceptRemoved(displaced);
        return null;
    } else {
        conceptRemoved(displaced);
        return concept;
    }
}

Example 8 with Concept

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

the class Remind method execute.

/**
 * To activate a concept as if a question has been asked about it
 *
 * @param args Arguments, a Statement followed by an optional tense
 * @param memory The memory in which the operation is executed
 * @return Immediate results as Tasks
 */
@Override
protected ArrayList<Task> execute(Operation operation, Term[] args, Memory memory) {
    Term term = args[1];
    Concept concept = memory.conceptualize(Consider.budgetMentalConcept(operation), term);
    BudgetValue budget = new BudgetValue(Parameters.DEFAULT_QUESTION_PRIORITY, Parameters.DEFAULT_QUESTION_DURABILITY, 1);
    activate(memory, concept, budget, Activating.TaskLink);
    return null;
}

Example 9 with Concept

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

the class ComplexEmotions method setEnabled.

@Override
public boolean setEnabled(NAR n, boolean enabled) {
    if (enabled) {
        Memory memory = n.memory;
        if (obs == null) {
            obs = new EventObserver() {

                @Override
                public void event(Class event, Object[] a) {
                    if (event != Events.TaskDerive.class && event != Events.InduceSucceedingEvent.class)
                        return;
                    Task future_task = (Task) a[0];
                    if (future_task.sentence.getOccurenceTime() > n.time()) {
                        Concept c = n.memory.concept(future_task.getTerm());
                        float true_expectation = 0.5f;
                        float false_expectation = 0.5f;
                        if (c != null) {
                            if (c.desires.size() > 0 && c.beliefs.size() > 0) {
                                // Fear:
                                if (future_task.sentence.truth.getExpectation() > true_expectation && c.desires.get(0).sentence.truth.getExpectation() < false_expectation) {
                                    // n.addInput("<(*,{SELF},fear) --> ^feel>. :|:");
                                    float weight = future_task.getPriority();
                                    float fear = solutionQuality(true, c.desires.get(0), future_task.sentence, memory);
                                    float newValue = fear * weight;
                                    fear += newValue * weight;
                                    fear /= 1.0f + weight;
                                    // incrase concept priority by fear value:
                                    Concept C1 = memory.concept(future_task.getTerm());
                                    if (C1 != null) {
                                        C1.incPriority(fear);
                                    }
                                    memory.emit(Answer.class, "Fear value=" + fear);
                                    System.out.println("Fear value=" + fear);
                                }
                            }
                        }
                    }
                }
            };
        }
        memory.event.set(obs, enabled, Events.InduceSucceedingEvent.class, Events.TaskDerive.class);
    }
    return true;
}

Example 10 with Concept

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

the class Consider method execute.

/**
 * To activate a concept as if a question has been asked about it
 *
 * @param args Arguments, a Statement followed by an optional tense
 * @param memory The memory in which the operation is executed
 * @return Immediate results as Tasks
 */
@Override
protected ArrayList<Task> execute(Operation operation, Term[] args, Memory memory) {
    Term term = args[1];
    Concept concept = memory.conceptualize(Consider.budgetMentalConcept(operation), term);
    DerivationContext cont = new DerivationContext(memory);
    cont.setCurrentConcept(concept);
    GeneralInferenceControl.fireConcept(cont, 1);
    return null;
}