def test_q_learning_real(self, q_old, starting_nu=0.1):
nu = starting_nu
block_world = BlockWorld(self.states_x,
self.states_y,
self.blocks_count,
self.stack_count,
record=False)
cnt = 0
while cnt < self.iteration_count:
cnt += 1
block_world.pre_render()
curr_state = block_world.get_state_as_tuple_pramodith2()
if self.debug and curr_state in q_old:
print("Current State: %s" + str(curr_state), q_old[curr_state])
action, block_id = self.get_next_action(curr_state, q_old, nu)
if self.debug: print("Action: ", action, block_id)
next_state = block_world.get_next_state_based_on_state_tuple(
curr_state, (action, block_id))
new_reward = block_world.get_reward_for_state(
next_state, curr_state)
new_reward += block_world.get_reward_for_state_action_pramodith(
curr_state, next_state)
print("Reward")
print(new_reward)
if new_reward >= 100:
print("Converged in %d", cnt)
return cnt
print("q:", q_old.get(str(curr_state), None))
block_world.update_state_from_tuple_pramodith(next_state)
block_world.render() # time.sleep(0.1)
return cnt
def random_exploration(self):
gamma = 0.1
q = defaultdict(lambda: 0)
episode_count = 2
prev_action = None
for ep in range(episode_count):
block_world = BlockWorld(self.states_x,
self.states_y,
self.blocks_count,
1,
record=True)
print("Goal: ", [
COLORS_STR[i] for stack in block_world.goal_config
for i in stack
])
while block_world.get_reward() != 0:
block_world.pre_render()
state = block_world.get_state_as_tuple()
action, block_id = self.get_random_action_from_prev_action(
prev_action)
next_state = block_world.get_next_state_based_on_state_tuple(
state, (action, block_id))
q_val = gamma * max([
q[next_state, b]
for b in self.get_allowed_actions_from_prev_action(
(action, block_id))
])
q[(block_world.get_state_as_tuple(),
action)] = block_world.get_reward_for_state(
state, block_world.goal_config.tolist()) + q_val
block_world.update_state_from_tuple(next_state)
prev_action = action, block_id
block_world.render()
def q_learning_random(self):
episode_count = 100
success_count = 0
for ep in range(episode_count):
block_world = BlockWorld(self.states_x,
self.states_y,
self.blocks_count,
1,
record=False)
print("Goal: %s" % [
COLORS_STR[i] for stack in block_world.goal_config
for i in stack
])
for iteration in range(5000):
block_world.pre_render()
curr_state = block_world.get_state_as_tuple()
action, block_id = self.get_next_action(curr_state, q, nu)
next_state = block_world.get_next_state_based_on_state_tuple(
curr_state, (action, block_id))
is_goal_next = block_world.get_reward_for_state(
next_state, block_world.goal_config) == 0
if self.debug:
print("Current State: ", curr_state, is_goal_next)
block_world.update_state_from_tuple(next_state)
block_world.render()
if is_goal_next:
print("Goal State Reached!!! in %d iterations" % iteration)
success_count += 1
break
if iteration % 100 == 1:
print(
ep,
iteration,
)
if self.debug: print(iteration)
print("success_count: ", success_count)
def random_exploration2(self):
episode_count = 2
prev_action = None
for ep in range(episode_count):
block_world = BlockWorld(self.states_x,
self.states_y,
self.blocks_count,
1,
record=True)
print("Goal: ", [
COLORS_STR[i] for stack in block_world.goal_config
for i in stack
])
while block_world.get_reward() != 0:
block_world.pre_render()
action, block_id = self.get_random_action_from_prev_action(
prev_action)
print("Action chosen :", action, block_id)
if action != Action.DROP and action != Action.PICK:
block_world.move_block_by_action(action, block_id)
prev_action = action, block_id
block_world.render()
def q_learning_real(self,
starting_nu=0.0,
use_old=True,
record=False,
demo_id=1,
goal_config=None):
alpha = 1
gamma = 0.1
action = None
picked = False
paused = False
user_choice = True
user_motion_pick = False
rendered_pick = True
record_actions = {}
if use_old:
if demo_id == 1:
q_old = Demonstrations.load_obj("q_table/q_3_blocks_all_goals")
else:
q_old = Demonstrations.load_obj("q_table/q_demo_" +
str(demo_id - 1))
else:
q_old = {}
nu = starting_nu
block_world = BlockWorld(self.states_x,
self.states_y,
self.blocks_count,
self.stack_count,
record=False,
goal_config=goal_config)
if record:
record_actions["starting_state"] = [
(block_world.block_dict[i].rect.centerx,
block_world.block_dict[i].rect.centery)
for i in range(self.blocks_count)
]
record_actions["goal_config"] = [block_world.goal_config]
record_actions["actions"] = []
if self.debug:
print("Goal: ", [[COLORS_STR[i] for i in stack if i >= 0]
for stack in block_world.goal_config])
cnt = 0
q = q_old.copy()
while cnt < self.iteration_count:
cnt += 1
block_world.pre_render()
curr_state = block_world.get_state_as_tuple_pramodith2()
if curr_state not in q:
q[curr_state] = {}
if self.debug: print("Current State: ", curr_state)
user_choice = True
action = None
user_motion_pick = False
while user_choice or paused:
time.sleep(0.5)
for event in pygame.event.get():
if event.type == KEYDOWN:
print("")
if event.key == K_SPACE:
if paused == False:
paused = True
else:
block_world.block_dict[block_id].surf.fill(
COLORS[block_id])
user_motion_pick = False
paused = False
user_choice = False
if rendered_pick and paused:
print('Waiting for user correction.')
print(block_id)
if event.key == K_UP:
print("d")
user_choice = True
picked = False
user_motion_pick = True
action = Action.MOVE_UP
user_choice = True
elif event.key == K_DOWN:
print("d")
user_choice = True
picked = False
user_motion_pick = True
action = Action.MOVE_DOWN
elif event.key == K_LEFT:
print("d")
user_choice = True
user_motion_pick = True
picked = False
action = Action.MOVE_LEFT
elif event.key == K_RIGHT:
print("d")
user_choice = True
user_motion_pick = True
picked = False
action = Action.MOVE_RIGHT
elif event.type == pygame.MOUSEBUTTONDOWN:
if paused:
pos = pygame.mouse.get_pos()
for block in block_world.block_dict.values():
if block.rect.collidepoint(pos):
if block_id:
block_world.block_dict[
block_id].surf.fill(
COLORS[block_id])
action = Action.PICK
block_id = block.id
user_choice = True
picked = True
block_world.block_dict[block_id].surf.fill(
CLICKED_COLOR[block_id])
rendered_pick = False
break
if not user_motion_pick and paused == False:
user_choice = False
if paused == False or (not rendered_pick or user_motion_pick):
break
if not user_choice:
action, block_id = self.get_next_action(curr_state, q, nu)
if record:
record_actions["actions"].append(
('algorithm', action, block_id))
else:
if action == Action.PICK:
rendered_pick = True
print('Skipping models choice to listen to the expert')
if record and action:
record_actions["actions"].append(
('user', action, block_id))
if self.debug: print("Action: ", action, block_id)
next_state = block_world.get_next_state_based_on_state_tuple(
curr_state, (action, block_id))
new_reward = block_world.get_reward_for_state(
next_state, curr_state)
new_reward += block_world.get_reward_for_state_action_pramodith(
curr_state, next_state)
if new_reward > 1 or new_reward < -1:
if self.debug: print("next_state: ", next_state)
if self.debug: print("new_reward: ", new_reward)
if (action, block_id) in q[curr_state]:
q_sa = q[curr_state][(action, block_id)]
else:
q_sa = 0
q[curr_state][(action, block_id)] = 0
if next_state in q and len(q[next_state]) > 0:
max_q_dash_s_dash_a_dash = max(
[q[next_state][a_dash] for a_dash in q[next_state]])
else:
max_q_dash_s_dash_a_dash = 0
if self.debug: print("max_q:", max_q_dash_s_dash_a_dash)
if new_reward > 70:
q[curr_state][(action, block_id)] = (
(1 - alpha) * q_sa) + (alpha * (new_reward))
break
else:
q[curr_state][(
action,
block_id)] += alpha * (new_reward + gamma *
(max_q_dash_s_dash_a_dash) - q_sa)
if self.debug: print("q:", q[curr_state][(action, block_id)])
block_world.update_state_from_tuple_pramodith(next_state)
block_world.render()
time.sleep(0.1)
pygame.display.quit()
Demonstrations.save_obj(q, "q_table/q_demo_" + str(demo_id))
Demonstrations.save_obj(record_actions,
"state_action_recording/demo_" + str(demo_id))
def q_learning(self,
q=None,
starting_nu=1.0,
decay_nu=True,
decay_rate=0.9995):
gamma = 0.1
alpha = 1
episode_count = 100
if not q:
q = defaultdict(lambda: defaultdict(lambda: 0))
success_count = 0
for ep in range(episode_count):
block_world = BlockWorld(self.states_x,
self.states_y,
self.blocks_count,
1,
record=False)
nu = starting_nu
print("Goal: ", [
COLORS_STR[i] for stack in block_world.goal_config
for i in stack
])
for iteration in range(self.iteration_count):
block_world.pre_render()
curr_state = block_world.get_state_as_tuple()
if self.debug: print("Current State: ", curr_state)
action, block_id = self.get_next_action(curr_state, q, nu)
if self.debug: print("Action: ", action, block_id)
next_state = block_world.get_next_state_based_on_state_tuple(
curr_state, (action, block_id))
new_reward = block_world.get_reward_for_state(
next_state, block_world.goal_config)
if self.debug: print("next_state: ", next_state)
if self.debug: print("new_reward: ", new_reward)
q_i = q[curr_state][(action, block_id)]
if len(q[next_state]) > 0:
max_q = max(
[q[next_state][a_dash] for a_dash in q[next_state]])
else:
max_q = 0
if self.debug: print("max_q:", max_q)
q[curr_state][(action, block_id)] = (
(1 - alpha) * q_i) + (alpha * (new_reward + gamma * max_q))
if self.debug: print("q:", q[curr_state][(action, block_id)])
block_world.update_state_from_tuple(next_state)
block_world.render()
if new_reward == 1:
print("Goal State Reached!!! in %d iterations" % iteration)
success_count += 1
break
if decay_nu and iteration > 50:
nu = decay_rate * nu
if iteration % 100 == 1:
print("EP[%d]It[%d]: Q[%d], nu:[%f]" %
(ep, iteration, len(q), nu))
print("success_count: ", success_count)
def q_learning_real(self, starting_nu=0.0, use_old=True):
alpha = 1
gamma = 0.1
actions_queue = deque(maxlen=5)
state_distance_queue = deque(maxlen=6)
converged = False
if use_old:
q_old = RLTrainer.load_obj("Q\q_oracle")
else:
q_old = {}
nu = starting_nu
block_world = BlockWorld(self.states_x,
self.states_y,
self.blocks_count,
self.stack_count,
record=False)
if self.debug:
print("Goal: ", [[COLORS_STR[i] for i in stack if i >= 0]
for stack in block_world.goal_config])
state_s = State([[
block_world.block_dict[i].rect.centerx,
block_world.block_dict[i].rect.centery
] for i in range(self.blocks_count)],
selected_index=block_world.selected_block_id,
goal_config=block_world.goal_config,
screen_dims=(block_world.screen_width,
block_world.screen_height))
block_world.goal_loc = state_s.goal_positions
remaining_prob = 1 - nu
do_next = 0
cnt = 0
q = q_old.copy()
while cnt < self.iteration_count:
cnt += 1
#while not converged:
block_world.pre_render(True)
curr_state = block_world.get_state_as_tuple_pramodith2()
if curr_state not in q:
q[curr_state] = {}
#print("Current State: ", curr_state)
'''
if np.random.rand() < 0.1:
state_s = State([[block_world.block_dict[i].rect.centerx, block_world.block_dict[i].rect.centery] for i in range(self.blocks_count)],
selected_index=block_world.selected_block_id, goal_config=block_world.goal_config,
screen_dims=(block_world.screen_width, block_world.screen_height))
if state_s.goal_reached():
print("REACHED...")
break
# block_world.goal_loc = state_s.goal_positions
action, block_id = self.get_next_action_supervised_t(state_t=None, state_s=state_s, q=None, nu=0)
else:
if action==Action.PICK or action==Action.DROP:
actions_queue.append(0)
else:
actions_queue.append(1)
#action, block_id = self.get_next_action(curr_state, q, nu)
state_distance_queue.append(curr_state[0])
if len(state_distance_queue)==6:
if (len(set(list(state_distance_queue)[0::2]))==1 and len(set(list(state_distance_queue)[1::2]))==1) or do_next>0:
state_s = State([[block_world.block_dict[i].rect.centerx, block_world.block_dict[i].rect.centery] for i in range(self.blocks_count)],
selected_index=block_world.selected_block_id, goal_config=block_world.goal_config,
screen_dims=(block_world.screen_width, block_world.screen_height))
action, block_id = self.get_next_action_supervised_t(state_t=None, state_s=state_s, q=None, nu=0)
'''
action, block_id = self.get_next_action(curr_state, q, nu)
if self.debug: print("Action: ", action, block_id)
next_state = block_world.get_next_state_based_on_state_tuple(
curr_state, (action, block_id))
new_reward = block_world.get_reward_for_state(
next_state, curr_state)
new_reward += block_world.get_reward_for_state_action_pramodith(
curr_state, next_state)
if new_reward > 1 or new_reward < -1:
if self.debug: print("next_state: ", next_state)
if self.debug: print("new_reward: ", new_reward)
# ever_seen_goal = ever_seen_goal or new_reward == 1
if (action, block_id) in q[curr_state]:
q_sa = q[curr_state][(action, block_id)]
else:
q_sa = 0
q[curr_state][(action, block_id)] = 0
if next_state in q and len(q[next_state]) > 0:
max_q_dash_s_dash_a_dash = max(
[q[next_state][a_dash] for a_dash in q[next_state]])
else:
max_q_dash_s_dash_a_dash = 0
if self.debug: print("max_q:", max_q_dash_s_dash_a_dash)
if new_reward > 70:
q[curr_state][(action, block_id)] = (
(1 - alpha) * q_sa) + (alpha * (new_reward))
return
else:
q[curr_state][(
action,
block_id)] += alpha * (new_reward + gamma *
(max_q_dash_s_dash_a_dash) - q_sa)
if self.debug: print("q:", q[curr_state][(action, block_id)])
block_world.update_state_from_tuple_pramodith(next_state)
if cnt > 4000 and cnt % 250 == 0 and nu > 0.05:
alpha -= 0.1
# print(cnt)
# nu-=0.1
#nu *= 0.9995
block_world.render()
# converged = ever_seen_goal and q == q_old
#q_old = q
# time.sleep(0.1)
pygame.display.quit()
#self.test_q_learning_real(q)
RLTrainer.save_obj(q, "Q\q_oracle")
def test_q_learning_real(self, q_old, starting_nu=0.1):
nu = starting_nu
prev_reward = 0
block_world = BlockWorld(self.states_x,
self.states_y,
self.blocks_count,
self.stack_count,
record=False)
ever_seen_goal = False
cnt = 0
'''
state_s = State(
[[block_world.block_dict[i].rect.centerx, block_world.block_dict[i].rect.centery] for i in
range(self.blocks_count)],
block_world.selected_block_id, block_world.goal_config,screen_dims=(block_world.screen_width, block_world.screen_height))
block_world.goal_loc = state_s.goal_positions
'''
while cnt < self.iteration_count:
cnt += 1
#q = q_old.copy()
block_world.pre_render()
curr_state = block_world.get_state_as_tuple_pramodith2()
if self.debug and curr_state in q_old:
print("Current State: %s" + str(curr_state), q_old[curr_state])
#if np.random.rand() < 0.01:
'''
state_s = State([[block_world.block_dict[i].rect.centerx, block_world.block_dict[i].rect.centery] for i in
range(self.blocks_count)],
selected_index=block_world.selected_block_id, goal_config=block_world.goal_config,
screen_dims=(block_world.screen_width, block_world.screen_height))
action, block_id = self.get_next_action_supervised_t(state_t=None, state_s=state_s, q=None, nu=0)
'''
action, block_id = self.get_next_action(curr_state, q_old, nu)
if self.debug: print("Action: ", action, block_id)
next_state = block_world.get_next_state_based_on_state_tuple(
curr_state, (action, block_id))
new_reward = block_world.get_reward_for_state(
next_state, curr_state)
new_reward += block_world.get_reward_for_state_action_pramodith(
curr_state, next_state)
# print("Reward")
# print(new_reward)
if new_reward > 70:
prev_reward = 71
print("Converged in %d", cnt)
#return cnt
#if self.debug:
# print("q:", q_old.get(str(curr_state),None))
block_world.update_state_from_tuple_pramodith(next_state)
block_world.render()
pygame.image.save(block_world.screen,
"sample_videos/3_block_" + str(cnt) + ".jpg")
if prev_reward > 70:
return
time.sleep(0.1)
return cnt