Пример #1
0
import os
from fanova import fANOVA
import numpy as np
from robo.fmin import random_search
from hpolib.benchmarks.synthetic_functions import Branin
import fanova.visualizer

objective_function = Branin()
info = objective_function.get_meta_information()
bounds = np.array(info['bounds'])
config_space = objective_function.get_configuration_space()

# Start Bayesian optimization to optimize the objective function
results = random_search(objective_function,
                        bounds[:, 0],
                        bounds[:, 1],
                        num_iterations=50)

# Creating a fANOVA object
X = np.array([i for i in results['X']])
Y = np.array([i for i in results['y']])
f = fANOVA(X, Y)

print(f.quantify_importance((0, )))

# Visualization
os.makedirs("./plots", exist_ok=True)
vis = fanova.visualizer.Visualizer(f, config_space, "./plots/")
vis.plot_marginal(1)
Пример #2
0
import numpy as np

from hpolib.benchmarks.synthetic_functions import Branin

# Perform random search on the Branin function

b = Branin()

values = []

cs = b.get_configuration_space()

for i in range(1000):
    configuration = cs.sample_configuration()
    rval = b.objective_function(configuration)
    loss = rval['function_value']
    values.append(loss)

print(np.min(values))
Пример #3
0
from fanova import fANOVA
import numpy as np
from robo.fmin import random_search
from hpolib.benchmarks.synthetic_functions import Branin
import fanova.visualizer


objective_function = Branin()
info = objective_function.get_meta_information()
bounds = np.array(info['bounds'])
config_space = objective_function.get_configuration_space()

# Start Bayesian optimization to optimize the objective function
results = random_search(objective_function, bounds[:, 0], bounds[:, 1], num_iterations=50)

# Creating a fANOVA object
X = np.array([i for i in results['X']])
Y = np.array([i for i in results['y']])
f = fANOVA(X,Y)

print(f.quantify_importance((0, )))

# Visualization
vis = fanova.visualizer.Visualizer(f, config_space, "./plots/")
vis.plot_marginal(1)