def evolve_policy(self):
""" Evolve a specialized policy using learned model. """
pool = spawn(Genome.open(PREFIX + "model.net"), 50)
feval = functions.Evaluator(self.model)
self.org = max(eonn.optimize(pool, feval.call, 2500, verbose=False))
self.org.evals = []
self.pool.append(self.org)
def evolve_policy(self): """ Evolve a specialized policy using learned model. """ pool = spawn(Genome.open(PREFIX + 'model.net'), 50) feval = functions.Evaluator(self.model) self.org = max(eonn.optimize(pool, feval.call, 2500, verbose=False)) self.org.evals = [] self.pool.append(self.org)
def evolve_policy(self):
""" Learn a model from flightdata and evolve specialized policies. """
params = model.estimate_params(self.log.name)
noise_std = model.estimate_std(self.log.name, params)
heli = ghh.Helicopter(params, noise_std, 0.1)
genome = Genome.open(PREFIX + 'baseline.net')
self.org = functions.evolve(heli, genome, epochs=500)
def main():
""" Main function. """
pool = Pool.spawn(Genome.open(NN_STRUCTURE_FILE), 20, std=1)
# Set evolutionary parameters
eonn.samplesize = 5 # Sample size used for tournament selection
eonn.keep = 5 # Nr. of organisms copied to the next generation (elitism)
eonn.mutate_prob = 0.75 # Probability that offspring is being mutated
eonn.mutate_frac = 0.2 # Fraction of genes that get mutated
eonn.mutate_std = 0.1 # Std. dev. of mutation distribution (gaussian)
eonn.mutate_repl = 0.25 # Probability that a gene gets replaced
directory = "pics/" + ''.join(rand.sample(letters + digits, 5))
os.makedirs(directory)
# Evolve population
for j in xrange(1, ROUNDS + 1):
pool = eonn.optimize(pool, cliff, epochs=EPOCHS, evals=EVALS)
print "AFTER EPOCH", j * EPOCHS
print "average fitness %.1f" % pool.fitness
champion = max(pool)
print "champion fitness %.1f" % champion.fitness
for i in xrange(10):
cliff(champion.policy, verbose=True)
plt.savefig(directory + "/" + str(j * EPOCHS) + ".png")
plt.clf()
with open(directory + '/best.net', 'w') as f:
f.write('%s' % champion.genome)
print "Done, everything saved in ", directory
def __init__(self):
""" Initialize agent. """
self.episode = 0
# self.org = Organism(Genome.open(PREFIX + 'generic.net'))
self.org = Organism(Genome.open(random.choice(POLICIES)))
self.pool = [self.org]
self.log = open('%s.dat' % ''.join(random.sample(letters + digits, 10)), 'w')
def initGP():
"""Do simulations with random pi,z and create GP, X, y"""
poolsize = 68
pool = Pool.spawn(Genome.open(NN_STRUCTURE_FILE), poolsize, std=10)
X = []
for i, org in enumerate(pool):
org.mutate()
genome = org.genome
w = genome.weights
z = [np.random.uniform(0, 0.3)]
reward = cliff(genome, z)
while reward <= 0 and len(X) < poolsize / 2:
#Train input policies to reach the goal.
org.mutate()
genome = org.genome
w = genome.weights
reward = cliff(genome, z)
if not len(X):
X = np.atleast_2d(w + z)
y = np.atleast_2d([reward])
else:
X = np.append(X, [w + z], axis=0)
y = np.append(y, [reward])
# Initialize GP with kernel parameters.
GP = GaussianProcess(theta0=0.1, thetaL=.001, thetaU=1.)
GP.fit(X, y)
return GP, X, y
def coevo():
# Create a pool for the policies
pi_pool = Pool.spawn(Genome.open(NN_STRUCTURE_FILE), 20, std=8)
# Create a pool of z's, starting around [0.5,0.5], should probably be better
z_list = [[x] for x in np.linspace(0, 0.5, 5)]
genomes = BasicGenome.from_list(z_list, 5)
org_list = [Organism(genome) for genome in genomes]
z_pool = Pool(org_list)
avg_fitness = []
champ_fitness = []
for i in xrange(150):
pi_pool = eonn.epoch(pi_pool, len(pi_pool))
z_pool = eonn.epoch(z_pool, len(z_pool))
for pi_org, z_org in itertools.product(pi_pool, z_pool):
reward = cliff(pi_org.genome, z=[z_org.weights[0]], verbose=False)
pi_org.evals.append(reward)
z_org.evals.append(reward)
for org in z_pool:
org.evals = [np.var(org.evals)]
avg_fitness.append(pi_pool.fitness)
champion = max(pi_pool)
champ_fitness.append(champion.fitness)
return avg_fitness, champ_fitness
def __init__(self):
""" Initialize agent. """
self.episode = 0
# self.org = Organism(Genome.open(PREFIX + 'generic.net'))
self.org = Organism(Genome.open(random.choice(POLICIES)))
self.pool = [self.org]
self.log = open("%s.dat" % "".join(random.sample(letters + digits, 10)), "w")
def evolve_policy(self, n=1):
""" Learn a model from flightdata and evolve specialized policies. """
params = model.estimate_params(self.log.name)
noise_std = model.estimate_std(self.log.name, params)
heli = ghh.Helicopter(params, noise_std, 0.1)
genome = Genome.open(PREFIX + 'baseline.net')
for i in range(n):
champion = functions.evolve(heli, genome, epochs=500)
champion.evals = list()
self.pool.append(champion)
def evolve_policy(self, n=1):
""" Learn a model from flightdata and evolve specialized policies. """
params = model.estimate_params(self.log.name)
noise_std = model.estimate_std(self.log.name, params)
heli = ghh.Helicopter(params, noise_std, 0.1)
genome = Genome.open(PREFIX + 'baseline.net')
for i in range(n):
champion = functions.evolve(heli, genome, epochs=500)
champion.evals = list()
self.pool.append(champion)
def learn_genomeIRL(self): #input the reward function
pool = Pool.spawn(Genome.open('policies/generic.net'), 20)
# Set evolutionary parameters
eonnIRL.keep = 15 ; eonnIRL.mutate_prob = 0.4 ; eonnIRL.mutate_frac = 0.1;eonnIRL.mutate_std = 0.8;eonnIRL.mutate_repl = 0.15
# Evolve population
pool = eonnIRL.optimize(pool, self.percieved_eval,400) # These are imported functions from EONNIRL
champion = max(pool)
# Print results
print '\nerror:', math.exp(1 / self.percieved_eval(champion.policy))
#print '\ngenome:\n%s' % champion.genome
return champion.policy
def learnGenomeIRL(theta): #input the reward function
pool = Pool.spawn(Genome.open('policies/generic.net'), 20)
# Set evolutionary parameters
eonnIRL.keep = 15
eonnIRL.mutate_prob = 0.4
eonnIRL.mutate_frac = 0.1
eonnIRL.mutate_std = 0.8
eonnIRL.mutate_repl = 0.15
# Evolve population
pool = eonnIRL.optimize(pool, hoverIRL, theta)
champion = max(pool)
# Print results
print '\nerror:', math.exp(1 / hover(champion.policy))
print '\nerror:', math.exp(1 / hoverIRL(champion.policy, theta))
print '\ngenome:\n%s' % champion.genome
def learnGenomeIRL(theta): #input the reward function
pool = Pool.spawn(Genome.open('policies/generic.net'), 20)
# Set evolutionary parameters
eonnIRL.keep = 15
eonnIRL.mutate_prob = 0.4
eonnIRL.mutate_frac = 0.1
eonnIRL.mutate_std = 0.8
eonnIRL.mutate_repl = 0.15
# Evolve population
pool = eonnIRL.optimize(pool, hoverIRL,theta)
champion = max(pool)
# Print results
print '\nerror:', math.exp(1 / hover(champion.policy))
print '\nerror:', math.exp(1 / hoverIRL(champion.policy,theta))
print '\ngenome:\n%s' % champion.genome
def main():
""" Main function. """
pool = Pool.spawn(Genome.open('mc.net'), 20, std=5.0)
# Set evolutionary parameters
eonn.keep = 5
eonn.mutate_prob = 0.9
eonn.mutate_frac = 0.2
eonn.mutate_std = 8.0
eonn.mutate_repl = 0.1
# Evolve population
pool = eonn.optimize(pool, mc)
champion = max(pool)
# Print results
print '\ntrace:'
mc(champion.policy, verbose=True)
print '\ngenome:\n%s' % champion.genome
def find_best(GP, epochs=100):
""" Find the best policy in the GP """
pool = Pool.spawn(Genome.open(NN_STRUCTURE_FILE), 50, std=8)
all_z = list(np.linspace(0, max_wind, 10))
for n in xrange(epochs):
if n != 0:
pool = eonn.epoch(pool, len(pool))
weights = [np.append(org.weights, z) for org in pool for z in all_z]
reward = GP.predict(weights)
for i in xrange(len(pool)):
pool[i].evals = list(reward[i * len(all_z):(i + 1) * len(all_z)])
champion = max(pool)
return champion
def main():
""" Main function. """
pool = Pool.spawn(Genome.open('mc.net'), 20, std=5.0)
# Set evolutionary parameters
eonn.KEEP = 5
eonn.MUTATE_PROB = 0.9
eonn.MUTATE_FRAC = 0.2
eonn.MUTATE_STD = 8.0
eonn.MUTATE_REPL = 0.1
# Evolve population
pool = eonn.optimize(pool, mc)
champion = max(pool)
# Print results
print '\ntrace:'
mc(champion.policy, verbose=True)
print '\ngenome:\n%s' % champion.genome
def find_best_upper(GP, epochs=100):
""" Find policy with highest upperbound """
pool = Pool.spawn(Genome.open(NN_STRUCTURE_FILE), 50, std=8)
all_z = list(np.linspace(0, max_wind, 10))
for n in xrange(epochs):
if n != 0:
pool = eonn.epoch(pool, len(pool))
weights = [np.append(org.weights, z) for org in pool for z in all_z]
reward, MSE = GP.predict(weights, eval_MSE=True)
reward += 1.96 * np.sqrt(MSE)
for i in xrange(len(pool)):
pool[i].evals = list(reward[i * len(all_z):(i + 1) * len(all_z)])
champion = max(pool)
return champion
def readPolicies():
"""
Reads in policies from relative
path littleWindPath and muchWindPath
"""
policies = []
for ptype in [
regularPolicies, rarePolicies, GPSmartPolicies, GPExtremePolicies
]:
typePolicies = []
for policy in os.walk(ptype).next()[1]:
org = Network(Genome.open(ptype + "/" + policy + "/best.net"))
typePolicies.append(org)
policies.append(typePolicies)
return policies
def acquisition(GP, epochs):
"""
Select the best (pi,z)-pair to evaluate using GP and GA
"""
# Create a pool for the policies
pi_pool = Pool.spawn(Genome.open(NN_STRUCTURE_FILE), 20, std=8)
# Create a pool of z's, starting around [0.5,0.5], should probably be better
z_list = list(itertools.product(np.arange(0, max_wind, 1. / 20)))
genomes = BasicGenome.from_list(z_list, 20)
org_list = [Organism(genome) for genome in genomes]
z_pool = Pool(org_list)
for _ in xrange(epochs):
pi_pool, z_pool, x_predict, reward_predict, MSE = do_evolution(
pi_pool, z_pool, GP)
# get scores
reward_predictGrid = np.reshape(reward_predict,
(len(pi_pool), len(z_pool)))
ub = 1.96 * np.sqrt(MSE)
ub_predictGrid = np.reshape(ub, (len(pi_pool), len(z_pool)))
pi_score = score_pi(reward_predictGrid, ub_predictGrid)
z_score = score_z(reward_predictGrid, ub_predictGrid)
# add scores to organisms
add_pi_scores(pi_pool, x_predict, pi_score)
add_z_scores(z_pool, x_predict, z_score)
# return current best pi and z
pi_org = max(pi_pool)
z_org = max(z_pool)
return pi_org, z_org
from eonn.organism import Pool
def xor(policy, verbose=False):
""" XOR evaluation function. """
err = 0.0
input = [(i, j) for i in range(2) for j in range(2)]
for i in input:
output = policy.propagate(i, 1);
err += (output[0] - (i[0] ^ i[1]))**2
if verbose:
print i, '-> %.4f' % output[0]
return 1.0 / err
if __name__ == '__main__':
pool = Pool.spawn(Genome.open('xor.net'), 30)
# Set evolutionary parameters
eonn.keep = 1
eonn.mutate_prob = 0.9
eonn.mutate_frac = 0.25
eonn.mutate_std = 0.8
eonn.mutate_repl = 0.2
# Evolve population
pool = eonn.optimize(pool, xor)
champion = max(pool)
# Print results
print '\noutput:'
xor(champion.policy, True)
print '\ngenome:\n%s' % champion.genome
from eonn.genome import Genome
from eonn.organism import Pool
from helicopter.helicopter import Helicopter, XcellTempest
def hover(policy):
""" Helicopter evaluation function. """
state, sum_error = heli.reset()
while not heli.terminal:
action = policy.propagate(state, 1)
state, error = heli.update(action)
sum_error += error
return 1 / math.log(sum_error)
if __name__ == '__main__':
heli = Helicopter(XcellTempest.params, XcellTempest.noise_std)
pool = Pool.spawn(Genome.open('baseline.net'), 20)
# Set evolutionary parameters
eonn.keep = 15
eonn.mutate_prob = 0.9
eonn.mutate_frac = 0.1
eonn.mutate_std = 0.8
eonn.mutate_repl = 0.15
# Evolve population
pool = eonn.optimize(pool, hover)
champion = max(pool)
# Print results
print '\nerror:', math.exp(1 / hover(champion.policy))
print '\ngenome:\n%s' % champion.genome
import sys
import random
sys.path.append('/home/koppejan/projects/helicopter')
import functions
from string import letters, digits
from eonn.genome import Genome
from eonn.organism import Organism
from helicopter import ghh, model
from helicopter.quaternion import quaternion_from_orientation
TOKENS = letters + digits
PREFIX = '/home/koppejan/helicopter/helicopter/ghh09/policies/'
POLICIES = [Genome.open(PREFIX + 'mdp%i.net' % i) for i in (3, 6)]
class Agent:
""" Hybrid agent, a combination of model-free and model-based learning. """
def __init__(self):
""" Initialize agent. """
self.episode = 0
self.pool = [Organism(genome) for genome in POLICIES]
self.backup = Organism(Genome.open(PREFIX + 'generic.net'))
self.log = open('log_%s.txt' % ''.join(random.sample(TOKENS, 10)), 'w')
def start(self):
""" Start a new episode """
self.set_policy()
self.episode += 1
self.reward = 0
def __init__(self):
""" Initialize agent. """
self.episode = 0
self.org = Organism(Genome.open(PREFIX + 'generic.net'))
self.log = open('log_%s.txt' % ''.join(random.sample(TOKENS, 10)), 'w')
from eonn.organism import Pool
def xor(policy, verbose=False):
""" XOR evaluation function. """
err = 0.0
input = [(i, j) for i in range(2) for j in range(2)]
for i in input:
output = policy.propagate(i, 1);
err += (output[0] - (i[0] ^ i[1]))**2
if verbose:
print i, '-> %.4f (%d)' % (output[0], round(output[0]))
return 1.0 / err
if __name__ == '__main__':
pool = Pool.spawn(Genome.open('xor.net'), 30)
# Set evolutionary parameters
eonn.KEEP = 1
eonn.MUTATE_PROB = 0.9
eonn.MUTATE_FRAC = 0.25
eonn.MUTATE_STD = 0.8
eonn.MUTATE_REPL = 0.2
# Evolve population
pool = eonn.optimize(pool, xor)
champion = max(pool)
# Print results
print '\noutput:'
xor(champion.policy, True)
print '\ngenome:\n%s' % champion.genome
def __init__(self):
""" Initialize agent. """
self.episode = 0
self.pool = [Organism(genome) for genome in POLICIES]
self.backup = Organism(Genome.open(PREFIX + 'generic.net'))
self.log = open('log_%s.txt' % ''.join(random.sample(TOKENS, 10)), 'w')
from eonn.genome import Genome
from eonn.organism import Organism
POLICIES = [Genome.open('policies/mdp%i.net' % i) for i in range(10)]
class Expert:
""" Model-Free agent, chooses best policy from a set of pre-trained policies. """
def __init__(self,policyNumber):
""" Initialize expert. """
self.episode = 0
#self.org = [Genome.open('policies/mdp%i.net' %i)]
self.pool = POLICIES[policyNumber]
self.org = Organism(POLICIES[policyNumber])
def start(self):
""" Start a new episode """
self.reward = 0
self.steps = 0
def step(self, state, reward):
""" Choose an action based on the current state. """
self.steps += 1
self.reward += reward
# DEBUG
action = self.org.policy.propagate(state, 1)
return action
def end(self, reward):
from eonn.genome import Genome
from eonn.organism import Pool
from helicopter.helicopter import Helicopter, XcellTempest
def hover(policy):
""" Helicopter evaluation function. """
state, sum_error = heli.reset()
while not heli.terminal:
action = policy.propagate(state, 1)
state, error = heli.update(action)
sum_error += error
return 1 / math.log(sum_error)
if __name__ == '__main__':
heli = Helicopter(XcellTempest.params, XcellTempest.noise_std)
pool = Pool.spawn(Genome.open('baseline.net'), 20)
# Set evolutionary parameters
eonn.keep = 15
eonn.mutate_prob = 0.9
eonn.mutate_frac = 0.1
eonn.mutate_std = 0.8
eonn.mutate_repl = 0.15
# Evolve population
pool = eonn.optimize(pool, hover)
champion = max(pool)
# Print results
print '\nerror:', math.exp(1 / hover(champion.policy))
print '\ngenome:\n%s' % champion.genome
def crash_control(self, state):
if sum([normalize(v, SAFE_LIMITS[i]) for i, v in enumerate(state)]) > 0.15:
self.crashed = True
self.org.evals.append(100000)
self.org = Organism(Genome.open(PREFIX + "baseline.net"))
def crash_control(self, state):
if sum([normalize(v, SAFE_LIMITS[i]) for i, v in enumerate(state)]) > 0.15:
self.crashed = True
self.org.evals.append(100000)
self.org = Organism(Genome.open(PREFIX + 'baseline.net'))
import sys, os
# relative paths required
dir = os.path.dirname(__file__)
prev = os.path.dirname(dir)
two = prev + '/site-packages/'
sys.path.append(prev)
sys.path.append(dir)
sys.path.append(two)
from eonn.genome import Genome
from eonn.organism import Organism
from apprentice import *
import numpy as np
import math
POLICIES = [Genome.open('policies/mdp%i.net' % i) for i in range(10)]
pol = Organism(POLICIES[2])
def normalise_vector(vector):
return np.divide(vector, np.linalg.norm(vector))
def modify_mu(mu_apprentice, mu_modified, mu_expert):
factor = np.dot(mu_apprentice[-1] - mu_modified[-1],
mu_expert - mu_apprentice[-1]) / np.dot(
mu_apprentice[-1] - mu_modified[-1],
mu_apprentice[-1] - mu_modified[-1])
mu_new = mu_modified[-1] + factor * (mu_apprentice[-1] - mu_modified[-1])
mu_modified.append(mu_new)
from eonn.genome import Genome
from eonn.organism import Organism
#POLICIES = [Genome.open('policies/mdp%i.net' % i) for i in range(10)]
POLICIES = [Genome.open('policies/mdp0.net')]
class Agent:
""" Model-Free agent, chooses best policy from a set of pre-trained policies. """
def __init__(self):
""" Initialize agent. """
self.episode = 0
self.pool = [Organism(genome) for genome in POLICIES]
def start(self):
""" Start a new episode """
self.set_policy()
self.episode += 1
self.reward = 0
self.steps = 0
def step(self, state, reward):
""" Choose an action based on the current state. """
self.steps += 1
self.reward += reward
# DEBUG
action = self.org.policy.propagate(state, 1)
if self.steps==1:
print '%+.10f ' * 12 % tuple(state),
print '%+.10f ' * 4 % tuple(action)
import sys
import random
sys.path.append('/home/koppejan/projects/helicopter')
import functions
from string import letters, digits
from eonn.genome import Genome
from eonn.organism import Organism
from helicopter import ghh, model
from helicopter.quaternion import quaternion_from_orientation
TOKENS = letters + digits
PREFIX = '/home/koppejan/helicopter/helicopter/ghh09/policies/'
POLICIES = [Genome.open(PREFIX + 'mdp%i.net' % i) for i in (3, 6)]
class Agent:
""" Hybrid agent, a combination of model-free and model-based learning. """
def __init__(self):
""" Initialize agent. """
self.episode = 0
self.pool = [Organism(genome) for genome in POLICIES]
self.backup = Organism(Genome.open(PREFIX + 'generic.net'))
self.log = open('log_%s.txt' % ''.join(random.sample(TOKENS, 10)), 'w')
def start(self):
""" Start a new episode """
self.set_policy()
self.episode += 1
self.reward = 0
def __init__(self):
""" Initialize agent. """
self.episode = 0
self.pool = [Organism(genome) for genome in POLICIES]
self.backup = Organism(Genome.open(PREFIX + 'generic.net'))
self.log = open('log_%s.txt' % ''.join(random.sample(TOKENS, 10)), 'w')