Example #1
0
def run_SPEA2(SIR_name, version, test_size):
    evaluator = evaluation.VEval(SIR_name, version, test_size)
    dim = test_size

    population = GA.initial_genes(dim, GLOB.POP)
    archive = []
    population_history = [population]
    archive_history = [archive]
    if GLOB.DEBUG:
        print('0', len(population))
    for i in range(GLOB.MAX_IT):
        #update
        union = population + archive
        GA.evaluate(union, evaluator)
        get_fitness(union)
        archive = select(union)
        population = GA.crossover(archive)[GLOB.POP + 1:]
        if GLOB.DEBUG:
            print(i, len(population))

        #save history
        population_history.append(population)
        archive_history.append(archive)

    first_pareto = get_first_pareto(archive)  #final result
    return first_pareto
Example #2
0
def new_crossover(CA, DA, cr, mr, dim):
    ratio = GLOB.CA_DA_RATIO
    new_pop = []

    if len(CA + DA) < 2:
        new_pop += GA.initial_genes(dim, GLOB.POP)
        return new_pop
    elif len(CA) < 2 or len(DA) < 2:
        new_pop += GA.crossover(CA + DA, mr=mr)
        return new_pop

    for i in range(GLOB.POP):
        child = None

        # consider crossover rate
        if random.random() < cr:
            p1, p2 = None, None

            # randomly choose parents between CA and DA
            rand_num = random.random()
            if rand_num < ratio * ratio:
                p1, p2 = random.sample(CA, 2)
            elif rand_num < 2 * ratio - ratio * ratio:
                if random.random() < 0.5:
                    p1 = random.sample(CA, 1)[0]
                    p2 = random.sample(DA, 1)[0]
                else:
                    p1 = random.sample(DA, 1)[0]
                    p2 = random.sample(CA, 1)[0]
            else:
                p1, p2 = random.sample(DA, 2)

            child = GA.PMX(p1, p2)
        else:
            seq = random.sample(CA + DA, 1)[0].get_seq().copy()
            child = GA.Gene_Info(seq)

        # mutation
        if random.random() < mr:
            seq = child.get_seq()
            idx1, idx2 = random.sample(list(seq), 2)
            seq[idx2], seq[idx1] = seq[idx1], seq[idx2]

        #check overlap
        overlapped = False
        for parent in CA + DA:
            if (child.get_seq() == parent.get_seq()).all():
                overlapped = True
                break
        if overlapped:  # if overlap, do not add child at new_pop
            continue

        new_pop.append(child)

    return new_pop


#run_TAEA('sed',1,360)
Example #3
0
def run_TAEA(input_fname):
    modify = modifier.modify_testcase(input_fname)
    dim = modify.get_datasize()

    population = GA.initial_genes(dim, GLOB.POP)
    population_history = [population]
    CA, DA = [], [] #covergence archive, diversity archive
    GA.evaluate(population,modify)

    for i in range(GLOB.MAX_IT):
        collect_non_dominated(population,CA,DA)
        new_pop = GA.crossover(CA+DA)
        GA.evaluate(new_pop,modify)
Example #4
0
def run_NSGA3(input_fname):
    modify = modifier.modify_testcase(input_fname)
    dim = modify.get_datasize()
    reference = get_ref()

    population = GA.initial_genes(dim,GLOB.POP)
    population_history = [population]
    for i in range(GLOB.MAX_IT):
        new_pop = GA.crossover(population)
        GA.evaluate(new_pop,modify)
        pareto = GA.get_pareto(new_pop)
        new_pop = select(pareto)
        population = new_pop
        population_history.append(population)

    first_pareto = get_first_pareto(population) #final result
Example #5
0
def run_NSGA2(SIR_name, version, test_size):
    evaluator = evaluation.VEval(SIR_name, version, test_size)
    dim = test_size
    population = GA.initial_genes(dim, GLOB.POP, version)
    if GLOB.DEBUG:
        print('0', len(population))
    population_history = [population]
    for i in range(GLOB.MAX_IT):
        new_pop = GA.crossover(population, mr=1 / dim)
        GA.evaluate(new_pop, evaluator)
        pareto = GA.get_pareto(new_pop)
        new_pop = select(pareto)
        population = new_pop
        population_history.append(population)
        if GLOB.DEBUG:
            print(i, len(population))

    first_pareto = get_first_pareto(population)  #final result
    return first_pareto
Example #6
0
def run_TAEA(SIR_name, version, test_size):
    evaluator = evaluation.VEval(SIR_name, version, test_size)
    dim = test_size

    population = GA.initial_genes(dim, GLOB.POP,version)
    population_history = [population]
    CA, DA = [], [] #covergence archive, diversity archive
    GA.evaluate(population,evaluator)
    if GLOB.DEBUG:
        print('0', 0)

    for i in range(GLOB.MAX_IT):
        CA, DA = collect_non_dominated(population,CA,DA)
        #print(len(CA), len(DA))
        population = new_crossover(CA,DA,GLOB.CROSSOVER_RATE,1/test_size)
        GA.evaluate(population,evaluator)
        if GLOB.DEBUG:
            print(i,len(CA+DA), 'covergence archive size', len(CA), 'divergence archive size', len(DA))

    return CA+DA