Esempio n. 1
0
def main(multicore, NGEN, POP, refmap, MUTPB, mu_mean, mu_sigma, verb, grid,
         graph):
    creator.create("FitnessMax", base.Fitness, weights=(1.0, ))
    creator.create("Individual", list, fitness=creator.FitnessMax)

    toolbox = base.Toolbox()
    toolbox.register("attr_trans", random.uniform, TRANS_MIN, TRANS_MAX)
    toolbox.register("attr_rot", random.uniform, ROT_MIN, ROT_MAX)

    toolbox.register(
        "individual",
        tools.initCycle,
        creator.Individual,
        (toolbox.attr_trans, toolbox.attr_trans, toolbox.attr_rot),
        n=1)
    toolbox.register("population", tools.initRepeat, list, toolbox.individual)

    if grid:
        pop = initPop(POP, refmap, creator.Individual)
    else:
        pop = toolbox.population(n=POP)
    toolbox.register("select", tools.selNSGA2)
    toolbox.register("mate", tools.cxOnePoint)
    toolbox.register("evaluate", evaluate)

    if multicore:
        pool = multiprocessing.Pool()
        toolbox.register("map", pool.map)

    hof = tools.HallOfFame(5)
    stats = tools.Statistics(lambda ind: ind.fitness.values)
    stats.register("max", np.max)
    stats.register("min", np.min)
    stats.register("avg", np.mean)
    stats.register("std", np.std)

    random.seed()
    record, log = eaMuPlusLambdaZeno(pop,
                                     toolbox,
                                     mu=int(POP * elite),
                                     lambda_=int(POP * (1 - elite)),
                                     cxpb=CXPB,
                                     mutpb=MUTPB,
                                     ngen=NGEN,
                                     mu_mean=mu_mean,
                                     mu_sigma=mu_sigma,
                                     stats=stats,
                                     halloffame=hof,
                                     verbose=args.v,
                                     graph=graph)
    expr = tools.selBest(pop, 1)[0]
    if verb:
        print "Best individual:", expr
        print "Fitness:", evaluate_solution(expr[0], expr[1], expr[2],
                                            errorscan.posx, errorscan.posy,
                                            errorscan.rot)
    best_result = evaluate_solution(expr[0], expr[1], expr[2], errorscan.posx,
                                    errorscan.posy, errorscan.rot)
    return best_result, record, log, expr
Esempio n. 2
0
def main(multicore, NGEN, POP, scan, map, CXPB, MUTPB, verb, graph):

    creator.create("FitnessMax", base.Fitness, weights=(1.0, ))
    creator.create("Individual", list, fitness=creator.FitnessMax)

    toolbox = base.Toolbox()
    toolbox.register("attr_trans", random.uniform, TRANS_MIN, TRANS_MAX)
    toolbox.register("attr_rot", random.uniform, ROT_MIN, ROT_MAX)

    toolbox.register(
        "individual",
        tools.initCycle,
        creator.Individual,
        (toolbox.attr_trans, toolbox.attr_trans, toolbox.attr_rot),
        n=1)
    toolbox.register("population", tools.initRepeat, list, toolbox.individual)

    toolbox.register("mutate",
                     tools.mutGaussian,
                     sigma=0.125 / 4,
                     mu=0,
                     indpb=MUTPB)
    toolbox.register("select", tools.selTournament, tournsize=3)
    toolbox.register("mate", tools.cxOnePoint)
    toolbox.register("evaluate", evaluate)

    if multicore:
        pool = multiprocessing.Pool()
        toolbox.register("map", pool.map)

    pop = toolbox.population(n=POP)
    hof = tools.HallOfFame(5)
    stats = tools.Statistics(lambda ind: ind.fitness.values)
    stats.register("max", np.max)
    stats.register("min", np.min)
    stats.register("avg", np.mean)
    stats.register("std", np.std)

    random.seed()
    record, log = eaSimple(pop,
                           toolbox,
                           cxpb=CXPB,
                           mutpb=MUTPB,
                           ngen=NGEN,
                           stats=stats,
                           halloffame=hof,
                           verbose=args.v,
                           graph=args.graph)
    expr = tools.selBest(pop, 1)[0]
    if verb:
        print "Best individual:", expr
        print "Fitness:", evaluate_solution(expr[0], expr[1], expr[2],
                                            errorscan.posx, errorscan.posy,
                                            errorscan.rot)
    best_result = evaluate_solution(expr[0], expr[1], expr[2], errorscan.posx,
                                    errorscan.posy, errorscan.rot)
    return best_result, record, log, expr