def optimize_model(self,):
import time
startTime = time.time()
samples = self.Memory.sample(64)
value_now_list = []
next_value_list = []
if (len(samples)==0):
return
fold = torchfold.Fold(cuda=True)
nowL = []
for one_sample in samples:
nowList = one_sample.env.selectValueFold(fold)
nowL.append(len(nowList))
value_now_list+=nowList
res = fold.apply(self.policy_net, [value_now_list])[0]
total = 0
value_now_list = []
next_value_list = []
for idx,one_sample in enumerate(samples):
value_now_list.append(self.policy_net.logits(res[total:total+nowL[idx]] , one_sample.env.sel.join_matrix ))
next_value_list.append(one_sample.next_value)
total += nowL[idx]
value_now = torch.cat(value_now_list,dim = 0)
next_value = torch.cat(next_value_list,dim = 0)
endTime = time.time()
if True:
loss = F.smooth_l1_loss(value_now,next_value,size_average=True)
self.optimizer.zero_grad()
loss.backward()
self.optimizer.step()
return loss.item()
return None
def forward(self, state, action):
self.clear_buffer()
if not self.disable_fold:
self.fold = torchfold.Fold()
self.fold.cuda()
self.zeroFold_td = self.fold.add("zero_func_td")
self.zeroFold_bu = self.fold.add("zero_func_bu")
self.x1_fold, self.x2_fold = [], []
assert state.shape[
1] == self.state_dim * self.num_limbs, 'state.shape[1] expects {} but got {} with num_limbs being {} and state_dim being {}'.format(
self.state_dim * self.num_limbs, state.shape[1],
self.num_limbs, self.state_dim)
for i in range(self.num_limbs):
self.input_state[i] = state[:, i * self.state_dim:(i + 1) *
self.state_dim]
self.input_action[i] = action[:, i]
self.input_action[i] = torch.unsqueeze(self.input_action[i], -1)
if not self.disable_fold:
self.input_state[i] = torch.unsqueeze(self.input_state[i], 0)
self.input_action[i] = torch.unsqueeze(self.input_action[i], 0)
if self.bu:
# bottom up transmission by recursion
for i in range(self.num_limbs):
self.bottom_up_transmission(i)
if self.td:
# top down transmission by recursion
for i in range(self.num_limbs):
self.top_down_transmission(i)
if not self.bu and not self.td:
for i in range(self.num_limbs):
if not self.disable_fold:
self.x1[i], self.x2[i] = self.fold.add(
'critic' + str(0).zfill(3), self.input_state[i],
self.input_action[i]).split(2)
else:
self.x1[i], self.x2[i] = self.critic[i](
self.input_state[i], self.input_action[i])
if not self.disable_fold:
if self.bu and not self.td:
self.x1_fold = self.x1_fold + [self.x1]
self.x2_fold = self.x2_fold + [self.x2]
else:
self.x1_fold = self.x1_fold + self.x1
self.x2_fold = self.x2_fold + self.x2
self.x1, self.x2 = self.fold.apply(self,
[self.x1_fold, self.x2_fold])
self.x1 = torch.transpose(self.x1, 0, 1)
self.x2 = torch.transpose(self.x2, 0, 1)
self.fold = None
else:
self.x1 = torch.stack(self.x1, dim=-1) # (bs,num_limbs,1)
self.x2 = torch.stack(self.x2, dim=-1)
return torch.sum(self.x1, dim=-1), torch.sum(self.x2, dim=-1)
def forward(self, state, mode="train"):
self.clear_buffer()
if mode == "inference":
temp = self.batch_size
self.batch_size = 1
if not self.disable_fold:
self.fold = torchfold.Fold()
self.fold.cuda()
self.zeroFold_td = self.fold.add("zero_func_td")
self.zeroFold_bu = self.fold.add("zero_func_bu")
self.a = []
assert (
state.shape[1] == self.state_dim * self.num_limbs
), "state.shape[1] expects {} but got {} with num_limbs being {} and state_dim being {}".format(
self.state_dim * self.num_limbs,
state.shape[1],
self.num_limbs,
self.state_dim,
)
for i in range(self.num_limbs):
self.input_state[i] = state[:, i * self.state_dim:(i + 1) *
self.state_dim]
if not self.disable_fold:
self.input_state[i] = torch.unsqueeze(self.input_state[i], 0)
if self.bu:
# bottom up transmission by recursion
for i in range(self.num_limbs):
self.bottom_up_transmission(i)
if self.td:
# top down transmission by recursion
for i in range(self.num_limbs):
self.top_down_transmission(i)
if not self.bu and not self.td:
for i in range(self.num_limbs):
if not self.disable_fold:
self.action[i] = self.fold.add("actor" + str(0).zfill(3),
self.input_state[i])
else:
self.action[i] = self.actor[i](self.input_state[i])
if not self.disable_fold:
self.a += self.action
self.action = self.fold.apply(self, [self.a])[0]
self.action = torch.transpose(self.action, 0, 1)
self.fold = None
else:
self.action = torch.stack(self.action, dim=-1)
self.msg_down = torch.stack(self.msg_down, dim=-1)
if mode == "inference":
self.batch_size = temp
return torch.squeeze(self.action)
def test_rnn(self):
f = torchfold.Fold()
v1, _ = f.add('value2', 1).split(2)
v2, _ = f.add('value2', 2).split(2)
r = v1
for i in range(1000):
r = f.add('attr', v1, v2)
r = f.add('attr', r, v2)
te = TestEncoder()
enc = f.apply(te, [[r]])
self.assertEqual(enc[0].size(), (1, 10))
def Q1(self, state, action):
self.clear_buffer()
if not self.disable_fold:
self.fold = torchfold.Fold()
self.fold.cuda()
self.zeroFold_td = self.fold.add("zero_func_td")
self.zeroFold_bu = self.fold.add("zero_func_bu")
self.x1_fold = []
for i in range(self.num_limbs):
self.input_state[i] = state[:, i * self.state_dim:(i + 1) *
self.state_dim]
self.input_action[i] = action[:, i]
self.input_action[i] = torch.unsqueeze(self.input_action[i], -1)
if not self.disable_fold:
self.input_state[i] = torch.unsqueeze(self.input_state[i], 0)
self.input_action[i] = torch.unsqueeze(self.input_action[i], 0)
if self.bu:
# bottom up transmission by recursion
for i in range(self.num_limbs):
self.bottom_up_transmission(i)
if self.td:
# top down transmission by recursion
for i in range(self.num_limbs):
self.top_down_transmission(i)
if not self.bu and not self.td:
for i in range(self.num_limbs):
if not self.disable_fold:
self.x1[i] = self.fold.add(
"critic" + str(0).zfill(3),
self.input_state[i],
self.input_action[i],
)
else:
self.x1[i] = self.critic[i](self.input_state[i],
self.input_action[i])
if not self.disable_fold:
if self.bu and not self.td:
self.x1 = [self.x1]
self.x1_fold = self.x1_fold + self.x1
self.x1 = self.fold.apply(self, [self.x1_fold])[0]
if not self.bu and not self.td:
self.x1 = self.x1[0]
self.x1 = torch.transpose(self.x1, 0, 1)
self.fold = None
else:
self.x1 = torch.stack(self.x1, dim=-1) # (bs,num_limbs,1)
return torch.sum(self.x1, dim=-1)
def test_nobatch(self):
f = torchfold.Fold()
v = []
for i in range(15):
v.append(f.add('value', i % 10))
d = f.add('concat', *v).nobatch()
res = []
for i in range(100):
res.append(f.add('logits', v[i % 10], d))
te = TestEncoder()
enc = f.apply(te, [res])
self.assertEqual(len(enc), 1)
self.assertEqual(enc[0].size(), (100, 15))
def main():
inputs = datasets.snli.ParsedTextField(lower=True)
transitions = datasets.snli.ShiftReduceField()
answers = data.Field(sequential=False)
train, dev, test = datasets.SNLI.splits(inputs, answers, transitions)
inputs.build_vocab(train, dev, test)
answers.build_vocab(train)
train_iter, dev_iter, test_iter = data.BucketIterator.splits(
(train, dev, test),
batch_size=args.batch_size,
device=0 if args.cuda else -1)
model = SPINN(3, 500, 1000)
criterion = nn.CrossEntropyLoss()
opt = optim.Adam(model.parameters(), lr=0.01)
for epoch in range(10):
start = time.time()
iteration = 0
for batch_idx, batch in enumerate(train_iter):
opt.zero_grad()
all_logits, all_labels = [], []
fold = torchfold.Fold(cuda=args.cuda)
for example in batch.dataset:
tree = Tree(example, inputs.vocab, answers.vocab)
if args.fold:
all_logits.append(encode_tree_fold(fold, tree))
else:
all_logits.append(encode_tree_regular(model, tree))
all_labels.append(tree.label)
if args.fold:
res = fold.apply(model, [all_logits, all_labels])
loss = criterion(res[0], res[1])
else:
loss = criterion(torch.cat(all_logits, 0),
Variable(torch.LongTensor(all_labels)))
loss.backward()
opt.step()
iteration += 1
if iteration % 10 == 0:
print("Avg. Time: %fs" % ((time.time() - start) / iteration))
def test_rnn_optimized_chunking(self):
seq_lengths = [2, 3, 5]
states = []
for _ in xrange(len(seq_lengths)):
states.append(self._generate_variable(self.num_units))
f = torchfold.Fold()
for seq_ind in xrange(len(seq_lengths)):
for _ in xrange(seq_lengths[seq_ind]):
states[seq_ind] = f.add(
'encode', self._generate_variable(self.input_size),
states[seq_ind])
enc = RNNEncoder(self.num_units, self.input_size)
with mock.patch.object(torch, 'chunk',
wraps=torch.chunk) as wrapped_chunk:
result = f.apply(enc, [states])
# torch.chunk is called 3 times instead of max(seq_lengths)=5.
self.assertEquals(3, wrapped_chunk.call_count)
self.assertEqual(len(result), 1)
self.assertEqual(result[0].size(), (len(seq_lengths), self.num_units))
def compute_loss_annotated(self, batch):
batch_size = batch.batch_size
if self.args.cuda:
batch = batch.cuda_train()
initial_state, memory, initial_logits = self.model.prepare_initial(
batch.input_grids, batch.output_grids, batch.current_grids,
batch.current_code)
max_code_length = memory.current_code.memory.shape[2]
initial_state_orig = initial_state
# state before: (batch x num pairs x hidden,
# num layers x batch x num pairs x hidden,
# num layers x batch x num pairs x hidden)
# state after: list of (1 x num pairs x hidden,
# 1 x num layers x num pairs x hidden,
# 1 x num layers x num pairs x hidden)
initial_state = zip(
torch.chunk(initial_state.context, batch_size),
torch.chunk(initial_state.h.permute(1, 0, 2, 3), batch_size),
torch.chunk(initial_state.c.permute(1, 0, 2, 3), batch_size))
# memory: io, current_grid, current_code.memory, current_code.attn_mask
# before: (batch x num pairs x 512,
# batch x num pairs x 256,
# batch x num pairs x max code length x 512,
# batch x num pairs x max code length)
# after: list of (1 x num pairs x 512,
# 1 x num pairs x 256,
# 1 x num pairs x max code length x 512,
# 1 x num pairs x max code length)
memory = zip(*(torch.chunk(t, batch_size) for t in memory.to_flat()))
initial_logits = torch.chunk(initial_logits, batch_size)
fold = torchfold.Fold(cuda=self.args.cuda)
#fold = torchfold.Unfold(nn=self.model, cuda=self.args.cuda)
zero = fold.add('tf_torch_zero')
log_probs = []
for batch_idx, allowed_edits in enumerate(batch.allowed_edits):
item_log_probs = []
item_memory = memory[batch_idx]
# before: 1 x num pairs x length x hidden size
# after: 1 x length x hidden size
current_code_memory = item_memory[2][:, 0]
current_code_attn_mask = item_memory[3][:, 0]
def step(state, choice_name):
output, context, h, c = fold.add(
'tf_step',
fold.add('choice_emb',
self.model.choice_vocab.stoi(choice_name)),
*(state + item_memory)).split(4)
return output, (context, h, c)
def step_pointer(state, loc):
output, context, h, c = fold.add(
'tf_step',
fold.add('tf_get_code_emb', current_code_memory, loc),
*(state + item_memory)).split(4)
return output, (context, h, c)
def log_prob(logits, idx, size):
assert idx < size
return fold.add(
'tf_get_log_prob:{}'.format(size),
fold.add('tf_torch_log_softmax:{}'.format(size), logits),
idx)
def pointer_logits(output, loc):
assert current_code_attn_mask[0, loc] == 0
return fold.add('pointer_logits', output, current_code_memory,
current_code_attn_mask)
def batched_sum(v1, v2, v3=zero, v4=zero, v5=zero):
# v* shape: batch x 1
return fold.add('tf_batched_sum', v1, v2, v3, v4, v5)
for action_type, action_args in allowed_edits:
if action_type == mutation.ADD_ACTION:
location, karel_action = action_args
action_log_prob = log_prob(
initial_logits[batch_idx],
self.model.initial_vocab.stoi(karel_action),
len(self.model.initial_vocab))
output, state = step(initial_state[batch_idx],
karel_action)
loc_log_prob = log_prob(pointer_logits(output, location),
location, max_code_length)
item_log_probs.append(
batched_sum(action_log_prob, loc_log_prob))
elif action_type == mutation.WRAP_BLOCK:
block_type, cond_id, start, end = action_args
block_type_log_prob = log_prob(
initial_logits[batch_idx],
self.model.initial_vocab.stoi(block_type),
len(self.model.initial_vocab))
output, state = step(initial_state[batch_idx], block_type)
if block_type == 'repeat':
cond_log_prob = log_prob(
fold.add('repeat_logits', output), cond_id,
len(mutation.REPEAT_COUNTS))
cond = len(mutation.CONDS) + cond_id
else:
cond_log_prob = log_prob(
fold.add('cond_logits', output), cond_id,
len(mutation.CONDS))
cond = cond_id
output, state = step(state, cond)
start_log_prob = log_prob(pointer_logits(output, start),
start, max_code_length)
output, state = step_pointer(state, start)
end_log_prob = log_prob(pointer_logits(output, end), end,
max_code_length)
item_log_probs.append(
batched_sum(block_type_log_prob, cond_log_prob,
start_log_prob, end_log_prob))
elif action_type == mutation.WRAP_IFELSE:
cond_id, if_start, else_start, end = action_args
block_type_log_prob = log_prob(
initial_logits[batch_idx],
self.model.initial_vocab.stoi('ifElse'),
len(self.model.initial_vocab))
output, state = step(initial_state[batch_idx], 'ifElse')
cond_log_prob = log_prob(fold.add('cond_logits', output),
cond_id, len(mutation.CONDS))
output, state = step(state, cond_id)
if_start_log_prob = log_prob(
pointer_logits(output, if_start), if_start,
max_code_length)
output, state = step_pointer(state, if_start)
else_start_log_prob = log_prob(
pointer_logits(output, else_start), else_start,
max_code_length)
output, state = step_pointer(state, else_start)
end_log_prob = log_prob(pointer_logits(output, end), end,
max_code_length)
item_log_probs.append(
batched_sum(block_type_log_prob, cond_log_prob,
if_start_log_prob, else_start_log_prob,
end_log_prob))
if not allowed_edits:
item_log_probs.append(
log_prob(initial_logits[batch_idx],
len(self.model.initial_vocab) - 1,
len(self.model.initial_vocab)))
log_probs.append(item_log_probs)
# log_probs before: list (batch size) of list (allowed_edits)
# log_probs after: list (batch size) of Tensor, each with length
# `allowed_edits`
log_probs_t = fold.apply(self.model, log_probs)
log_probs_per_example = [utils.logsumexp(t) for t in log_probs_t]
loss = -torch.mean(torch.cat(log_probs_per_example))
return loss, log_probs_per_example
def main():
device_type = 'cuda' if args.cuda else 'cpu'
device = torch.device(device_type)
print("Running on: {}".format(device))
#####################################
## configure experiment parameters ##
#####################################
batch_sizes = [1, 32, 64, 128, 256, 512, 1024]
epochs = 1
learning_rate = 0.001
max_samples = 5000 # number of samples to use for experiment
#####################################
inputs = ParsedTextField(lower=True)
transitions = ShiftReduceField()
labels = data.Field(sequential=False)
print("Loading dataset...")
train, dev, test = datasets.SNLI.splits(inputs, labels, transitions)
inputs.build_vocab(train, dev, test)
labels.build_vocab(train)
print("Done.")
for batch_size in batch_sizes:
print("Batching dataset into mini-batches of size {}..".format(
batch_size))
train_iter, _, _ = data.BucketIterator.splits((train, dev, test),
batch_size=batch_size,
device=device)
print("Done.")
print("Configuring SPINN model...")
model = SPINN(3, 500, len(inputs.vocab))
if args.cuda:
model.to(device)
criterion = nn.CrossEntropyLoss()
opt = optim.Adam(model.parameters(), lr=learning_rate)
print("Done.")
for epoch in range(epochs):
print("starting epoch {}".format(epoch))
all_batch_times = []
for batch_idx, batch in enumerate(train_iter):
opt.zero_grad() # reset gradients per mini-batch
all_logits, all_labels = [], []
if args.dynamic:
fold = torchfold.Fold()
if args.cuda:
fold.cuda()
start = timer()
tree_sizes = []
# becuase batch.dataset starts at the begninning of the entire dataset
# instead of where the previous batch left off
for sample_idx in range(batch_idx * batch_size,
(batch_idx + 1) * batch_size):
# HACK this is to account for the final batch which may or may not be
# of size batch_size - there should be a more elegant solution to this
if sample_idx == len(batch.dataset) - 1:
break
tree = Tree(batch.dataset[sample_idx].label,
batch.dataset[sample_idx].premise_transitions,
batch.dataset[sample_idx].premise,
inputs.vocab, labels.vocab)
if args.dynamic:
all_logits.append(encode_tree_fold(fold, tree))
else:
all_logits.append(encode_tree_regular(model, tree))
all_labels.append(tree.label)
if args.dynamic:
res = fold.apply(model, [all_logits, all_labels])
batch_time = timer() - start
loss = criterion(res[0], res[1])
else:
test = np.asarray(all_labels, dtype=int)
x = torch.from_numpy(test).to(device)
batch_time = timer() - start
loss = criterion(torch.cat(all_logits, 0), x)
loss.backward()
opt.step()
####################
## Gather results ##
####################
all_batch_times.append(batch_time)
results['time'].append(batch_time)
results['epoch'].append(epoch)
results['batch'].append(batch_idx)
results['sample'].append(sample_idx)
results['batch_size'].append(batch_size)
ts = tree_size(tree.root)
tree_sizes.append(ts)
results['treesize'].append(np.mean(tree_sizes))
####################
if batch_idx % 10 == 1:
print(
"batch size: {} sample: {}/{} loss:{:4f} - Avg. Time (per batch): {:5f}s"
.format(batch_size, batch_idx * batch_size,
max_samples, loss, np.mean(all_batch_times)))
# only need to look at first 5000 samples for each batch
if batch_idx * batch_size > max_samples:
break
print("done epoch {}".format(epoch))
with open(
os.path.join(
ROOT, "results_fold-{}-{}-{}-backup.json".format(
args.dynamic, batch_size, args.cuda)), "w+") as fd:
json.dump(results, fd)
with open(
os.path.join(
ROOT,
"results_fold-{}-{}-full.json".format(args.dynamic,
args.cuda)), "w+") as fd:
json.dump(results, fd)
grassData = GRASS('data')
dataloader = torch.utils.data.DataLoader(grassData,
batch_size=123,
shuffle=True,
collate_fn=class_collate)
optimizer_encoder = torch.optim.Adam(encoder.parameters(), lr=1e-3)
optimizer_decoder = torch.optim.Adam(decoder.parameters(), lr=1e-3)
for epcho in range(500):
if epcho % 100 == 0 and epcho != 0:
torch.save(encoder, 'VAEencoder.pkl')
torch.save(decoder, 'VAEdecoder.pkl')
for i, batch in enumerate(dataloader):
fold = torchfold.Fold(cuda=True, variable=False)
encoding = []
for example in batch:
encoding.append(model.encode_structure_fold(fold, example))
encoding = fold.apply(encoder, [encoding])
encoding = torch.split(encoding[0], 1, 0)
decodingLoss = []
fold = torchfold.Fold(cuda=True, variable=True)
kldLoss = []
for example, f in zip(batch, encoding):
ff, kld = torch.chunk(f, 2, 1)
decodingLoss.append(model.decode_structure_fold(fold, ff, example))
kldLoss.append(kld)
decodingLoss = fold.apply(decoder, [decodingLoss, kldLoss])
err_re = decodingLoss[0].sum() / len(batch)
err_kld = decodingLoss[1].sum().mul(-0.05) / len(batch)
def _training_pass(self, valid_rooms, epoch, is_training=True):
"""
Single training pass
:param valid_rooms: choice of =[self.valid_rooms_train, self.valid_rooms_test]
:param epoch: current epoch
:param is_training: train or test pass
:return:
"""
''' epoch and args '''
epoch += self.pretrained_epoch
opt_parser =self.opt_parser
''' current training state '''
if (is_training):
self.STATE = 'TRAIN'
self.full_enc.train()
self.full_dec.train()
else:
self.STATE = 'EVAL'
self.full_enc.eval()
self.full_dec.eval()
''' init loss / accuracy '''
loss_cat_per_epoch, acc_cat_per_epoch, loss_dim_per_epoch, num_node_per_epoch, dim_acc_per_epoch = 0.0, {1:0.0, 3:0.0, 5:0.0}, 0.0, 0.0, 0.0
''' shuffle room list and create training batches '''
shuffle(valid_rooms)
room_indices = list(range(len(valid_rooms)))
room_idx_batches = [room_indices[i: i + opt_parser.batch_size] for i in
range(0, len(valid_rooms), opt_parser.batch_size)]
''' Batch loop '''
for batch_i, batch in enumerate(room_idx_batches):
batch_rooms = [valid_rooms[i] for i in batch]
""" ==================================================================
Encoder Part
================================================================== """
# init torchfold
enc_fold = torchfold.Fold()
enc_fold_nodes = []
enc_rand_path_order = []
enc_rand_path_root_to_leaf_order = []
# loop for rooms
for room_i, room in enumerate(batch_rooms):
node_list = self.__preprocess_root_wall_nodes__(room['node_list'])
# adapt acceleration for large graphs (by splitting into sub-graphs)
consider_path_type = ['root']
root_to_split = False
if(opt_parser.adapt_training_on_large_graph):
if (len(node_list.keys()) >= int(opt_parser.max_scene_nodes)):
consider_path_type = node_list['root']['support']
root_to_split = True
# loop for sub-graphs
for sub_tree_root_node in consider_path_type:
# find sub-graph's root to leaf node path
subtree_to_leaf_path = self.find_root_to_leaf_node_path(node_list, cur_node=sub_tree_root_node)
# skip unreasonable paths
subtree_to_leaf_path = [p for p in subtree_to_leaf_path if len(p) >= 2 and len(p) < opt_parser.max_scene_nodes]
subtree_to_leaf_path = [p for p in subtree_to_leaf_path if 'wall' not in p[-1].split('_')[0]]
if(len(subtree_to_leaf_path) == 0):
continue
# find node list for sub-graphs
sub_keys = list(set(self.find_selected_node_list(node_list, sub_tree_root_node)))
if(root_to_split):
sub_keys += ['root']
sub_node_list = dict((k, node_list[k]) for k in sub_keys if k in node_list.keys())
# update parents, childs, siblings for each node
sub_node_list = self.find_parent_sibling_child_list(sub_node_list)
# exclude examples with too many sub tree nodes
if(len(sub_node_list.keys()) >= int(opt_parser.max_scene_nodes)):
print('skip too large sub-scene:', len(sub_node_list.keys()), '>', opt_parser.max_scene_nodes)
continue
subtree_to_leaf_path.sort()
# loop for each root-to-leaf path
for rand_path_idx, rand_path in enumerate(subtree_to_leaf_path):
rand_path_fold, rand_path_node_name_order = self.model.encode_tree_fold(enc_fold, sub_node_list, rand_path, opt_parser)
enc_fold_nodes += rand_path_fold
enc_rand_path_order += [[room_i, sub_tree_root_node] + rand_path_node_name_order]
enc_rand_path_root_to_leaf_order += [rand_path]
# if batch size is too small, sometimes there is no valid training instance.
if(len(enc_fold_nodes) == 0):
print('surprisingly this batch has no valid training trees!')
continue
# torch-fold train encoder
enc_fold_nodes = enc_fold.apply(self.full_enc, [enc_fold_nodes])
enc_fold_nodes = torch.split(enc_fold_nodes[0], 1, 0)
""" ==================================================================
Decoder Part
================================================================== """
# Ground-truth leaf node vec
leaf_node_gt = []
# # FOLD
dec_fold = torchfold.Fold()
dec_fold_nodes = []
# loop for all encoded vectors
for i, rand_path_order in enumerate(enc_rand_path_order):
# find room-node-list
room_i = rand_path_order[0]
node_list = batch_rooms[room_i]['node_list']
# decode to k-vec and add Ops to fold
dec_fold_nodes.append(self.model.decode_tree_fold(dec_fold, enc_fold_nodes[i], opt_parser))
leaf_node_gt += [self.model.get_gt_k_vec(node_list, enc_rand_path_root_to_leaf_order[i][-1], opt_parser)] # leaf node ground-truth k-vec
# torch-fold decoder
dec_fold_nodes = dec_fold.apply(self.full_dec, [dec_fold_nodes])
leaf_node_pred = dec_fold_nodes[0]
""" ==================================================================
Loss / Accuray Part
================================================================== """
size_pos_dim = 6
leaf_node_cat_gt = [c[:-size_pos_dim].index(1) for c in leaf_node_gt]
leaf_node_cat_gt = to_torch(leaf_node_cat_gt, torch_type=torch.LongTensor, dim_0=len(leaf_node_gt)).view(-1)
leaf_node_dim_gt = [c[-size_pos_dim:-size_pos_dim+3] for c in leaf_node_gt]
leaf_node_dim_gt = to_torch(leaf_node_dim_gt, torch_type=torch.FloatTensor, dim_0=len(leaf_node_gt))
loss_cat = self.LOSS_CLS(leaf_node_pred[:, :-size_pos_dim], leaf_node_cat_gt)
loss_dim = self.LOSS_L2(leaf_node_pred[:, -size_pos_dim:-size_pos_dim+3], leaf_node_dim_gt) * 1000
# report scores
loss_cat_per_batch = loss_cat.data.cpu().numpy()
loss_dim_per_batch = loss_dim.data.cpu().numpy()
num_node_per_batch = len(leaf_node_gt) * 1.0
# accuracy (top k)
acc_cat_per_batch = {}
for k in [1, 3, 5]:
_, pred = leaf_node_pred[:, :-size_pos_dim].topk(k, 1, True, True)
pred = pred.t()
correct = pred.eq(leaf_node_cat_gt.view(1, -1).expand_as(pred))
correct_k = correct[:k].view(-1).float().sum(0, keepdim=True)
acc_cat_per_batch[k] = correct_k[0].cpu().numpy()
# dimension (diagonal) percentage off
diag_pred = np.sqrt(
np.sum(leaf_node_pred[:, -size_pos_dim:-size_pos_dim+3].data.cpu().numpy() ** 2, axis=1))
diag_gt = np.sqrt(
np.sum(leaf_node_dim_gt.data.cpu().numpy() ** 2, axis=1))
dim_acc_per_batch = np.sum(np.abs(diag_pred - diag_gt) / diag_gt)
loss_cat_per_epoch += loss_cat_per_batch
loss_dim_per_epoch += loss_dim_per_batch
num_node_per_epoch += num_node_per_batch
dim_acc_per_epoch += dim_acc_per_batch
for key in acc_cat_per_epoch.keys():
acc_cat_per_epoch[key] += acc_cat_per_batch[key]
if (is_training):
# Back-propagation
for key in self.opt.keys():
self.opt[key].zero_grad()
# only train object dimensions
if(opt_parser.train_dim and not opt_parser.train_cat):
loss_dim.backward()
# only train object categories
elif(opt_parser.train_cat and not opt_parser.train_dim):
loss_cat.backward()
# train both
elif(opt_parser.train_cat and opt_parser.train_dim):
loss_cat.backward(retain_graph=True)
loss_dim.backward()
else:
print('At least enable --train_cat or --train_dim.')
exit(-1)
for key in self.opt.keys():
self.opt[key].step()
if (opt_parser.verbose >= 0):
print(self.STATE, opt_parser.name, epoch,
': ({}/{}:{})'.format(batch_i, len(room_idx_batches), num_node_per_batch),
'CAT Loss: {:.4f}, Acc_1: {:.4f}, Acc_3: {:.4f}, Acc_5: {:.4f},Dim Loss: {:.8f}, dim acc: {:.2f}'.format(
loss_cat_per_batch / num_node_per_batch * 100.0,
acc_cat_per_batch[1] / num_node_per_batch,
acc_cat_per_batch[3] / num_node_per_batch,
acc_cat_per_batch[5] / num_node_per_batch,
loss_dim_per_batch / num_node_per_batch,
dim_acc_per_batch / num_node_per_batch))
""" ==================================================================
Report Part
================================================================== """
print('========================================================')
print(self.STATE, epoch, ': ',
'CAT Loss: {:.4f}, Acc_1: {:.4f}, Acc_3: {:.4f}, Acc_5: {:.4f}, Dim Loss: {:.4f}, Dim acc: {:.4f}'.format(
loss_cat_per_epoch / num_node_per_epoch * 100.0,
acc_cat_per_epoch[1] / num_node_per_epoch,
acc_cat_per_epoch[3] / num_node_per_epoch,
acc_cat_per_epoch[5] / num_node_per_epoch,
loss_dim_per_epoch / num_node_per_epoch,
dim_acc_per_epoch / num_node_per_epoch))
print('========================================================')
''' write avg to log '''
if (opt_parser.write):
self.writer.add_scalar('{}_LOSS_CAT'.format(self.STATE), loss_cat_per_epoch / num_node_per_epoch,
epoch)
self.writer.add_scalar('{}_ACC_CAT'.format(self.STATE), acc_cat_per_epoch[1] / num_node_per_epoch,
epoch)
self.writer.add_scalar('{}_ACC_3_CAT'.format(self.STATE), acc_cat_per_epoch[3] / num_node_per_epoch,
epoch)
self.writer.add_scalar('{}_ACC_5_CAT'.format(self.STATE), acc_cat_per_epoch[5] / num_node_per_epoch,
epoch)
self.writer.add_scalar('{}_LOSS_DIM'.format(self.STATE), loss_dim_per_epoch / num_node_per_epoch,
epoch)
''' save model '''
if (not is_training):
def save_model(save_type):
torch.save({
'full_enc_state_dict': self.full_enc.state_dict(),
'full_dec_state_dict': self.full_dec.state_dict(),
'full_enc_opt': self.opt['full_enc'].state_dict(),
'full_dec_opt': self.opt['full_dec'].state_dict(),
'epoch': epoch
}, '{}/Entire_model_{}.pth'.format(opt_parser.outf, save_type))
# if model is better, save model checkpoint
# min dim loss model
if(loss_dim_per_epoch / num_node_per_epoch < self.MIN_DIM_LOSS):
self.MIN_DIM_LOSS = loss_dim_per_epoch / num_node_per_epoch
save_model('min_dim_loss')
# max cat acc model (top-5 acc)
if (acc_cat_per_epoch[5] / num_node_per_epoch > self.MAX_ACC):
self.MAX_ACC = acc_cat_per_epoch[5] / num_node_per_epoch
save_model('max_acc')
# min cat loss model
if (loss_cat_per_epoch / num_node_per_epoch < self.MIN_LOSS):
self.MIN_LOSS = loss_cat_per_epoch / num_node_per_epoch
save_model('min_loss')
# always save the latest model
save_model('last_epoch')
return