def op_bukin():
plot_fcn(tf.bukin)
initial_position = [-9, 0]
boundaries = [(-12, -8), (-2, 2)]
pso.optimize(tf.bukin,
initial_position,
boundaries,
n_particles=2500,
max_iter=2400)
print("Expected: F(x) = 0, at x = [-10, 1]")
def op_levi():
plot_fcn(tf.levi)
initial_position = [5, 5]
boundaries = [(-10, 10), (-10, 10)]
pso.optimize(tf.levi,
initial_position,
boundaries,
n_particles=700,
max_iter=220)
print("Expected: F(x) = 0, at x = [1, 1]")
def op_rosenbrock():
plot_fcn(tf.rosenbrock)
initial_position = [2, 0, 4, 0.5]
boundaries = [(-2.048, 3), (-1.845, 2.5), (-5, 10), (-2.3, 1.2)]
pso.optimize(tf.rosenbrock,
initial_position,
boundaries,
n_particles=300,
max_iter=2000)
print("Expected: F(x) = 0, at x = [1, 1, 1, 1]")
def op_beale():
plot_fcn(tf.beale)
initial_position = [0, 0]
boundaries = [(-4.5, 4.5), (-4.5, 4.5)]
pso.optimize(tf.beale,
initial_position,
boundaries,
n_particles=1500,
max_iter=300)
print("Expected: F(x) = 0, at x = [3, 0.5]")
def op_ackley():
plot_fcn(tf.ackley)
initial_position = [5, 5]
boundaries = [(-3.2768, 3.276), (-32.768, 32.768)]
pso.optimize(tf.ackley,
initial_position,
boundaries,
n_particles=1500,
max_iter=1500)
print("Expected: F(x) = 0, at x = [0, 0]")
def op_schaffer():
plot_fcn(tf.schaffer)
initial_position = [5, 5]
boundaries = [(-100, 100), (-100, 100)]
pso.optimize(tf.schaffer,
initial_position,
boundaries,
n_particles=1500,
max_iter=300)
print("Expected: F(x) = 0, at x = [0, 0]")
def op_cormick():
plot_fcn(tf.cormick)
initial_position = [0, 0]
boundaries = [(-1.5, 4), (-3, 4)]
pso.optimize(tf.cormick,
initial_position,
boundaries,
n_particles=500,
max_iter=400)
print("Expected: F(x) = -1.9133, at x = [-0.54719, -1.54719]")
def op_rastrigin():
plot_fcn(tf.rastrigin)
initial_position = [2, 3]
boundaries = [(-5.12, 5.12), (-5.12, 5.12)]
pso.optimize(tf.rastrigin,
initial_position,
boundaries,
n_particles=1500,
max_iter=300)
print("Expected: F(x) = 0, at x = [0, 0]")
def op_easom():
plot_fcn(tf.easom)
initial_position = [5, 5]
boundaries = [(-100, 100), (-100, 100)]
pso.optimize(tf.easom,
initial_position,
boundaries,
n_particles=400,
max_iter=250)
print("Expected: F(x) = -1, at x = [pi, pi]")
