def main(base_data_dir, train_data_path, train_base_dir, orig_eval_data_path,
orig_eval_base_dir, synth_eval_data_path, synth_eval_base_dir,
lexicon_path, seq_proj, backend, snapshot, input_height, base_lr,
elastic_alpha, elastic_sigma, step_size, max_iter, batch_size,
output_dir, test_iter, show_iter, test_init, use_gpu,
use_no_font_repeat_data, do_vat, do_at, vat_ratio, test_vat_ratio,
vat_epsilon, vat_ip, vat_xi, vat_sign, do_comp, comp_ratio,
do_remove_augs, aug_to_remove, do_beam_search, dropout_conv,
dropout_rnn, dropout_output, do_ema, do_gray, do_test_vat,
do_test_entropy, do_test_vat_cnn, do_test_vat_rnn, do_test_rand,
ada_after_rnn, ada_before_rnn, do_ada_lr, ada_ratio, rnn_hidden_size,
do_test_pseudo, test_pseudo_ratio, test_pseudo_thresh, do_lr_step,
do_test_ensemble, test_ensemble_ratio, test_ensemble_thresh):
num_nets = 4
train_data_path = os.path.join(base_data_dir, train_data_path)
train_base_dir = os.path.join(base_data_dir, train_base_dir)
synth_eval_data_path = os.path.join(base_data_dir, synth_eval_data_path)
synth_eval_base_dir = os.path.join(base_data_dir, synth_eval_base_dir)
orig_eval_data_path = os.path.join(base_data_dir, orig_eval_data_path)
orig_eval_base_dir = os.path.join(base_data_dir, orig_eval_base_dir)
lexicon_path = os.path.join(base_data_dir, lexicon_path)
all_parameters = locals()
cuda = use_gpu
#print(train_base_dir)
if output_dir is not None:
os.makedirs(output_dir, exist_ok=True)
tb_writer = TbSummary(output_dir)
output_dir = os.path.join(output_dir, 'model')
os.makedirs(output_dir, exist_ok=True)
with open(lexicon_path, 'rb') as f:
lexicon = pkl.load(f)
#print(sorted(lexicon.items(), key=operator.itemgetter(1)))
with open(os.path.join(output_dir, 'params.txt'), 'w') as f:
f.writelines(str(all_parameters))
print(all_parameters)
print('new vat')
sin_magnitude = 4
rotate_max_angle = 2
train_fonts = [
'Qomolangma-Betsu', 'Shangshung Sgoba-KhraChen',
'Shangshung Sgoba-KhraChung', 'Qomolangma-Drutsa'
]
all_args = locals()
print('doing all transforms :)')
rand_trans = [
ElasticAndSine(elastic_alpha=elastic_alpha,
elastic_sigma=elastic_sigma,
sin_magnitude=sin_magnitude),
Rotation(angle=rotate_max_angle, fill_value=255),
ColorGradGausNoise()
]
if do_gray:
rand_trans = rand_trans + [
Resize(hight=input_height),
AddWidth(),
ToGray(),
Normalize()
]
else:
rand_trans = rand_trans + [
Resize(hight=input_height),
AddWidth(), Normalize()
]
transform_random = Compose(rand_trans)
if do_gray:
transform_simple = Compose(
[Resize(hight=input_height),
AddWidth(),
ToGray(),
Normalize()])
else:
transform_simple = Compose(
[Resize(hight=input_height),
AddWidth(), Normalize()])
if use_no_font_repeat_data:
print('create dataset')
train_data = TextDatasetRandomFont(data_path=train_data_path,
lexicon=lexicon,
base_path=train_base_dir,
transform=transform_random,
fonts=train_fonts)
print('finished creating dataset')
else:
print('train data path:\n{}'.format(train_data_path))
print('train_base_dir:\n{}'.format(train_base_dir))
train_data = TextDataset(data_path=train_data_path,
lexicon=lexicon,
base_path=train_base_dir,
transform=transform_random,
fonts=train_fonts)
synth_eval_data = TextDataset(data_path=synth_eval_data_path,
lexicon=lexicon,
base_path=synth_eval_base_dir,
transform=transform_random,
fonts=train_fonts)
orig_eval_data = TextDataset(data_path=orig_eval_data_path,
lexicon=lexicon,
base_path=orig_eval_base_dir,
transform=transform_simple,
fonts=None)
if do_test_ensemble:
orig_vat_data = TextDataset(data_path=orig_eval_data_path,
lexicon=lexicon,
base_path=orig_eval_base_dir,
transform=transform_simple,
fonts=None)
#else:
# train_data = TestDataset(transform=transform, abc=abc).set_mode("train")
# synth_eval_data = TestDataset(transform=transform, abc=abc).set_mode("test")
# orig_eval_data = TestDataset(transform=transform, abc=abc).set_mode("test")
seq_proj = [int(x) for x in seq_proj.split('x')]
nets = []
optimizers = []
lr_schedulers = []
for neti in range(num_nets):
nets.append(
load_model(lexicon=train_data.get_lexicon(),
seq_proj=seq_proj,
backend=backend,
snapshot=snapshot,
cuda=cuda,
do_beam_search=do_beam_search,
dropout_conv=dropout_conv,
dropout_rnn=dropout_rnn,
dropout_output=dropout_output,
do_ema=do_ema,
ada_after_rnn=ada_after_rnn,
ada_before_rnn=ada_before_rnn,
rnn_hidden_size=rnn_hidden_size,
gpu=neti))
optimizers.append(
optim.Adam(nets[neti].parameters(),
lr=base_lr,
weight_decay=0.0001))
lr_schedulers.append(
StepLR(optimizers[neti], step_size=step_size, max_iter=max_iter))
loss_function = CTCLoss()
synth_avg_ed_best = float("inf")
orig_avg_ed_best = float("inf")
epoch_count = 0
if do_test_ensemble:
collate_vat = lambda x: text_collate(x, do_mask=True)
vat_load = DataLoader(orig_vat_data,
batch_size=batch_size,
num_workers=4,
shuffle=True,
collate_fn=collate_vat)
vat_len = len(vat_load)
cur_vat = 0
vat_iter = iter(vat_load)
loss_domain = torch.nn.NLLLoss()
while True:
collate = lambda x: text_collate(
x, do_mask=(do_vat or ada_before_rnn or ada_after_rnn))
data_loader = DataLoader(train_data,
batch_size=batch_size,
num_workers=4,
shuffle=True,
collate_fn=collate)
if do_comp:
data_loader_comp = DataLoader(train_data_comp,
batch_size=batch_size,
num_workers=4,
shuffle=True,
collate_fn=collate_comp)
iter_comp = iter(data_loader_comp)
loss_mean_ctc = []
loss_mean_total = []
loss_mean_test_ensemble = []
num_labels_used_total = 0
iterator = tqdm(data_loader)
nll_loss = torch.nn.NLLLoss()
iter_count = 0
for iter_num, sample in enumerate(iterator):
total_iter = (epoch_count * len(data_loader)) + iter_num
if ((total_iter > 1)
and total_iter % test_iter == 0) or (test_init
and total_iter == 0):
# epoch_count != 0 and
print("Test phase")
for net in nets:
net = net.eval()
if do_ema:
net.start_test()
synth_acc, synth_avg_ed, synth_avg_no_stop_ed, synth_avg_loss = test(
nets,
synth_eval_data,
synth_eval_data.get_lexicon(),
cuda,
batch_size=batch_size,
visualize=False,
tb_writer=tb_writer,
n_iter=total_iter,
initial_title='val_synth',
loss_function=loss_function,
output_path=os.path.join(output_dir, 'results'),
do_beam_search=False)
orig_acc, orig_avg_ed, orig_avg_no_stop_ed, orig_avg_loss = test(
nets,
orig_eval_data,
orig_eval_data.get_lexicon(),
cuda,
batch_size=batch_size,
visualize=False,
tb_writer=tb_writer,
n_iter=total_iter,
initial_title='test_orig',
loss_function=loss_function,
output_path=os.path.join(output_dir, 'results'),
do_beam_search=do_beam_search)
for net in nets:
net = net.train()
#save periodic
if output_dir is not None and total_iter // 30000:
periodic_save = os.path.join(output_dir, 'periodic_save')
os.makedirs(periodic_save, exist_ok=True)
old_save = glob.glob(os.path.join(periodic_save, '*'))
for neti, net in enumerate(nets):
torch.save(
net.state_dict(),
os.path.join(
output_dir, "crnn_{}_".format(neti) + backend +
"_" + str(total_iter)))
if orig_avg_no_stop_ed < orig_avg_ed_best:
orig_avg_ed_best = orig_avg_no_stop_ed
if output_dir is not None:
for neti, net in enumerate(nets):
torch.save(
net.state_dict(),
os.path.join(
output_dir, "crnn_{}_".format(neti) + backend +
"_iter_{}".format(total_iter)))
if synth_avg_no_stop_ed < synth_avg_ed_best:
synth_avg_ed_best = synth_avg_no_stop_ed
if do_ema:
for net in nets:
net.end_test()
print(
"synth: avg_ed_best: {}\t avg_ed: {}; avg_nostop_ed: {}; acc: {}"
.format(synth_avg_ed_best, synth_avg_ed,
synth_avg_no_stop_ed, synth_acc))
print(
"orig: avg_ed_best: {}\t avg_ed: {}; avg_nostop_ed: {}; acc: {}"
.format(orig_avg_ed_best, orig_avg_ed, orig_avg_no_stop_ed,
orig_acc))
tb_writer.get_writer().add_scalars(
'data/test', {
'synth_ed_total': synth_avg_ed,
'synth_ed_no_stop': synth_avg_no_stop_ed,
'synth_avg_loss': synth_avg_loss,
'orig_ed_total': orig_avg_ed,
'orig_ed_no_stop': orig_avg_no_stop_ed,
'orig_avg_loss': orig_avg_loss
}, total_iter)
if len(loss_mean_ctc) > 0:
train_dict = {'mean_ctc_loss': np.mean(loss_mean_ctc)}
train_dict = {
**train_dict,
**{
'mean_test_ensemble_loss':
np.mean(loss_mean_test_ensemble)
}
}
train_dict = {
**train_dict,
**{
'num_labels_used': num_labels_used_total
}
}
num_labels_used_total = 0
print(train_dict)
tb_writer.get_writer().add_scalars('data/train',
train_dict, total_iter)
'''
# for multi-gpu support
if sample["img"].size(0) % len(gpu.split(',')) != 0:
continue
'''
for optimizer in optimizers:
optimizer.zero_grad()
imgs = Variable(sample["img"])
#print("images sizes are:")
#print(sample["img"].shape)
if do_vat or ada_after_rnn or ada_before_rnn:
mask = sample['mask']
labels_flatten = Variable(sample["seq"]).view(-1)
label_lens = Variable(sample["seq_len"].int())
#print("image sequence length is:")
#print(sample["im_seq_len"])
#print("label sequence length is:")
#print(sample["seq_len"].view(1,-1))
img_seq_lens = sample["im_seq_len"]
if do_test_ensemble:
if cur_vat >= vat_len:
vat_load = DataLoader(orig_vat_data,
batch_size=batch_size,
num_workers=4,
shuffle=True,
collate_fn=collate_vat)
vat_len = len(vat_load)
cur_vat = 0
vat_iter = iter(vat_load)
vat_batch = next(vat_iter)
cur_vat += 1
vat_mask = vat_batch['mask']
vat_imgs = Variable(vat_batch["img"])
vat_img_seq_lens = vat_batch["im_seq_len"]
all_net_classes = []
all_net_preds = []
def run_net_get_classes(neti_net_pair, cur_vat_imgs,
cur_vat_mask, cur_vat_img_seq_lens,
cuda):
neti, net = neti_net_pair
if cuda:
cur_vat_imgs = cur_vat_imgs.cuda(neti)
cur_vat_mask = cur_vat_mask.cuda(neti)
vat_pred = net.vat_forward(cur_vat_imgs,
cur_vat_img_seq_lens)
vat_pred = vat_pred * cur_vat_mask
vat_pred = F.softmax(vat_pred,
dim=2).view(-1,
vat_pred.size()[-1])
all_net_preds.append(vat_pred)
np_vat_preds = vat_pred.cpu().data.numpy()
classes_by_index = np.argmax(np_vat_preds, axis=1)
return classes_by_index
for neti, net in enumerate(nets):
if cuda:
vat_imgs = vat_imgs.cuda(neti)
vat_mask = vat_mask.cuda(neti)
vat_pred = net.vat_forward(vat_imgs, vat_img_seq_lens)
vat_pred = vat_pred * vat_mask
vat_pred = F.softmax(vat_pred,
dim=2).view(-1,
vat_pred.size()[-1])
all_net_preds.append(vat_pred)
np_vat_preds = vat_pred.cpu().data.numpy()
classes_by_index = np.argmax(np_vat_preds, axis=1)
all_net_classes.append(classes_by_index)
all_net_classes = np.stack(all_net_classes)
all_net_classes, all_nets_count = stats.mode(all_net_classes,
axis=0)
all_net_classes = all_net_classes.reshape(-1)
all_nets_count = all_nets_count.reshape(-1)
ens_indices = np.argwhere(
all_nets_count > test_ensemble_thresh)
ens_indices = ens_indices.reshape(-1)
ens_classes = all_net_classes[
all_nets_count > test_ensemble_thresh]
net_ens_losses = []
num_labels_used = len(ens_indices)
for neti, net in enumerate(nets):
indices = Variable(
torch.from_numpy(ens_indices).cuda(neti))
labels = Variable(torch.from_numpy(ens_classes).cuda(neti))
net_preds_to_ens = all_net_preds[neti][indices]
loss = nll_loss(net_preds_to_ens, labels)
net_ens_losses.append(loss.cpu())
nets_total_losses = []
nets_ctc_losses = []
loss_is_inf = False
for neti, net in enumerate(nets):
if cuda:
imgs = imgs.cuda(neti)
preds = net(imgs, img_seq_lens)
loss_ctc = loss_function(
preds, labels_flatten,
Variable(torch.IntTensor(np.array(img_seq_lens))),
label_lens) / batch_size
if loss_ctc.data[0] in [float("inf"), -float("inf")]:
print("warnning: loss should not be inf.")
loss_is_inf = True
break
total_loss = loss_ctc
if do_test_ensemble:
total_loss = total_loss + test_ensemble_ratio * net_ens_losses[
neti]
net_ens_losses[neti] = net_ens_losses[neti].data[0]
total_loss.backward()
nets_total_losses.append(total_loss.data[0])
nets_ctc_losses.append(loss_ctc.data[0])
nn.utils.clip_grad_norm(net.parameters(), 10.0)
if loss_is_inf:
continue
if -400 < loss_ctc.data[0] < 400:
loss_mean_ctc.append(np.mean(nets_ctc_losses))
if -400 < total_loss.data[0] < 400:
loss_mean_total.append(np.mean(nets_total_losses))
status = "epoch: {0:5d}; iter_num: {1:5d}; lr: {2:.2E}; loss_mean: {3:.3f}; loss: {4:.3f}".format(
epoch_count, lr_schedulers[0].last_iter,
lr_schedulers[0].get_lr(), np.mean(nets_total_losses),
np.mean(nets_ctc_losses))
if do_test_ensemble:
ens_loss = np.mean(net_ens_losses)
if ens_loss != 0:
loss_mean_test_ensemble.append(ens_loss)
status += "; loss_ens: {0:.3f}".format(ens_loss)
status += "; num_ens_used {}".format(num_labels_used)
else:
loss_mean_test_ensemble.append(0)
status += "; loss_ens: {}".format(0)
iterator.set_description(status)
for optimizer in optimizers:
optimizer.step()
if do_lr_step:
for lr_scheduler in lr_schedulers:
lr_scheduler.step()
iter_count += 1
if output_dir is not None:
for neti, net in enumerate(nets):
torch.save(
net.state_dict(),
os.path.join(output_dir,
"crnn_{}_".format(neti) + backend + "_last"))
epoch_count += 1
return
def test_attn(net,
data,
abc,
cuda,
visualize,
batch_size=1,
tb_writer=None,
n_iter=0,
initial_title="",
is_trian=True,
output_path=None):
collate = lambda x: text_collate(x, do_mask=True)
net.eval()
data_loader = DataLoader(data,
batch_size=1,
num_workers=2,
shuffle=False,
collate_fn=collate)
stop_characters = ['-', '.', '༎', '༑', '།', '་']
count = 0
tp = 0
avg_ed = 0
avg_no_stop_ed = 0
avg_loss = 0
min_ed = 1000
iterator = tqdm(data_loader)
all_pred_text = all_label_text = all_im_pathes = []
test_letter_statistics = Statistics()
with torch.no_grad():
for i, sample in enumerate(iterator):
if is_trian and (i > 1000):
break
imgs = Variable(sample["img"])
mask = sample["mask"]
padded_labels = sample["padded_seq"]
if cuda:
imgs = imgs.cuda()
mask = mask.cuda()
padded_labels = padded_labels.cuda()
img_seq_lens = sample["im_seq_len"]
# Forward propagation
decoder_outputs, decoder_hidden, other = net(
imgs, img_seq_lens, mask, None, teacher_forcing_ratio=0)
# Get loss
loss = NLLLoss()
loss.reset()
zero_labels = torch.zeros_like(padded_labels[:, 1])
max_label_size = padded_labels.size(1)
for step, step_output in enumerate(decoder_outputs):
batch_size = padded_labels.size(0)
if (step + 1) < max_label_size:
loss.eval_batch(
step_output.contiguous().view(batch_size, -1),
padded_labels[:, step + 1])
else:
loss.eval_batch(
step_output.contiguous().view(batch_size, -1),
zero_labels)
# Backward propagation
total_loss = loss.get_loss().data[0]
avg_loss += total_loss
labels_flatten = Variable(sample["seq"]).view(-1)
label_lens = Variable(sample["seq_len"].int())
preds_text = net.predict(other)
padded_labels = (sample["padded_seq"].numpy()).tolist()
lens = sample["seq_len"].numpy().tolist()
label_text = net.padded_seq_to_txt(padded_labels, lens)
if output_path is not None:
all_pred_text = all_pred_text + [
pd + '\n' for pd in preds_text
]
all_label_text = all_label_text + [
lb + '\n' for lb in label_text
]
all_im_pathes.append(
sample["im_path"] +
'\n') #[imp +'\n' for imp in sample["im_path"]]
if i == 0:
if tb_writer is not None:
tb_writer.show_images(
sample["img"],
label_text=[lb + '\n' for lb in label_text],
pred_text=[pd + '\n' for pd in preds_text],
n_iter=n_iter,
initial_title=initial_title)
pos = 0
key = ''
for i in range(len(label_text)):
cur_out_no_stops = ''.join(c for c in label_text[i]
if not c in stop_characters)
cur_gts_no_stops = ''.join(c for c in preds_text[i]
if not c in stop_characters)
cur_ed = editdistance.eval(preds_text[i], label_text[i]) / max(
len(preds_text[i]), len(label_text[i]))
errors, matches, bp = my_edit_distance_backpointer(
cur_out_no_stops, cur_gts_no_stops)
test_letter_statistics.add_data(bp)
my_no_stop_ed = errors / max(len(cur_out_no_stops),
len(cur_gts_no_stops))
cur_no_stop_ed = editdistance.eval(
cur_out_no_stops, cur_gts_no_stops) / max(
len(cur_out_no_stops), len(cur_gts_no_stops))
if my_no_stop_ed != cur_no_stop_ed:
print('old ed: {} , vs. new ed: {}\n'.format(
my_no_stop_ed, cur_no_stop_ed))
avg_no_stop_ed += cur_no_stop_ed
avg_ed += cur_ed
if cur_ed < min_ed: min_ed = cur_ed
count += 1
if visualize:
status = "pred: {}; gt: {}".format(preds_text[i],
label_text[i])
iterator.set_description(status)
img = imgs[i].permute(1, 2, 0).cpu().data.numpy().astype(
np.uint8)
cv2.imshow("img", img)
key = chr(cv2.waitKey() & 255)
if key == 'q':
break
if key == 'q':
break
if not visualize:
iterator.set_description(
"acc: {0:.4f}; avg_ed: {0:.4f}".format(
float(tp) / float(count),
float(avg_ed) / float(count)))
with open(
output_path +
'_{}_{}_statistics.pkl'.format(initial_title, n_iter), 'wb') as sf:
pkl.dump(test_letter_statistics.total_actions_hists, sf)
if output_path is not None:
os.makedirs(output_path, exist_ok=True)
print('writing output')
with open(
output_path + '_{}_{}_pred.txt'.format(initial_title, n_iter),
'w') as fp:
fp.writelines(all_pred_text)
with open(
output_path + '_{}_{}_label.txt'.format(initial_title, n_iter),
'w') as fp:
fp.writelines(all_label_text)
with open(output_path + '_{}_{}_im.txt'.format(initial_title, n_iter),
'w') as fp:
fp.writelines(all_im_pathes)
stop_characters = ['-', '.', '༎', '༑', '།', '་']
all_pred_text = [
''.join(c for c in line if not c in stop_characters)
for line in all_pred_text
]
with open(
output_path +
'_{}_{}_pred_no_stopchars.txt'.format(initial_title, n_iter),
'w') as rf:
rf.writelines(all_pred_text)
all_label_text = [
''.join(c for c in line if not c in stop_characters)
for line in all_label_text
]
with open(
output_path +
'_{}_{}_label_no_stopchars.txt'.format(initial_title, n_iter),
'w') as rf:
rf.writelines(all_label_text)
acc = float(tp) / float(count)
avg_ed = float(avg_ed) / float(count)
avg_no_stop_ed = float(avg_no_stop_ed) / float(count)
avg_loss = float(avg_loss) / float(count)
return acc, avg_ed, avg_no_stop_ed, avg_loss
def test(net,
data,
abc,
cuda,
visualize,
batch_size=1,
tb_writer=None,
n_iter=0,
initial_title="",
loss_function=None,
is_trian=True,
output_path=None,
do_beam_search=False,
do_results=False,
word_lexicon=None):
collate = lambda x: text_collate(x, do_mask=False)
data_loader = DataLoader(data,
batch_size=1,
num_workers=2,
shuffle=False,
collate_fn=collate)
stop_characters = ['-', '.', '༎', '༑', '།', '་']
garbage = '-'
count = 0
tp = 0
avg_ed = 0
avg_no_stop_ed = 0
avg_accuracy = 0
avg_loss = 0
min_ed = 1000
iterator = tqdm(data_loader)
all_pred_text = all_label_text = all_im_pathes = []
test_letter_statistics = Statistics()
im_by_error = {}
for i, sample in enumerate(iterator):
if is_trian and (i > 500):
break
imgs = Variable(sample["img"])
if cuda:
imgs = imgs.cuda()
img_seq_lens = sample["im_seq_len"]
out, orig_seq = net(imgs,
img_seq_lens,
decode=True,
do_beam_search=do_beam_search)
if loss_function is not None:
labels_flatten = Variable(sample["seq"]).view(-1)
label_lens = Variable(sample["seq_len"].int())
loss = loss_function(
orig_seq, labels_flatten,
Variable(torch.IntTensor(np.array(img_seq_lens))),
label_lens) / batch_size
avg_loss += loss.data[0]
gt = (sample["seq"].numpy()).tolist()
lens = sample["seq_len"].numpy().tolist()
labels_flatten = Variable(sample["seq"]).view(-1)
label_lens = Variable(sample["seq_len"].int())
if output_path is not None:
preds_text = net.decode(orig_seq, data.get_lexicon())
all_pred_text = all_pred_text + [
''.join(c for c in pd if c != garbage) + '\n'
for pd in preds_text
]
label_text = net.decode_flatten(labels_flatten, label_lens,
data.get_lexicon())
all_label_text = all_label_text + [lb + '\n' for lb in label_text]
all_im_pathes.append(
sample["im_path"] +
'\n') #[imp +'\n' for imp in sample["im_path"]]
if i == 0:
if tb_writer is not None:
print_data_visuals(net, tb_writer, data.get_lexicon(),
sample["img"], labels_flatten, label_lens,
orig_seq, n_iter, initial_title)
pos = 0
key = ''
for i in range(len(out)):
gts = ''.join(abc[c] for c in gt[pos:pos + lens[i]])
pos += lens[i]
if gts == out[i]:
tp += 1
else:
cur_out = ''.join(c for c in out[i] if c != garbage)
cur_gts = ''.join(c for c in gts if c != garbage)
cur_out_no_stops = ''.join(c for c in out[i]
if not c in stop_characters)
cur_gts_no_stops = ''.join(c for c in gts
if not c in stop_characters)
cur_ed = editdistance.eval(cur_out, cur_gts) / len(cur_gts)
if word_lexicon is not None:
closest_word = get_close_matches(cur_out,
word_lexicon,
n=1,
cutoff=0.2)
else:
closest_word = cur_out
if len(closest_word) > 0 and closest_word[0] == cur_gts:
avg_accuracy += 1
errors, matches, bp = my_edit_distance_backpointer(
cur_out_no_stops, cur_gts_no_stops)
test_letter_statistics.add_data(bp)
#my_no_stop_ed = errors / max(len(cur_out_no_stops), len(cur_gts_no_stops))
#cur_no_stop_ed = editdistance.eval(cur_out_no_stops, cur_gts_no_stops) / max(len(cur_out_no_stops), len(cur_gts_no_stops))
if do_results:
im_by_error[sample["im_path"]] = cur_ed
my_no_stop_ed = errors / len(cur_gts_no_stops)
cur_no_stop_ed = editdistance.eval(
cur_out_no_stops, cur_gts_no_stops) / len(cur_gts_no_stops)
if my_no_stop_ed != cur_no_stop_ed:
print('old ed: {} , vs. new ed: {}\n'.format(
my_no_stop_ed, cur_no_stop_ed))
avg_no_stop_ed += cur_no_stop_ed
avg_ed += cur_ed
if cur_ed < min_ed: min_ed = cur_ed
count += 1
if visualize:
status = "pred: {}; gt: {}".format(out[i], gts)
iterator.set_description(status)
img = imgs[i].permute(1, 2,
0).cpu().data.numpy().astype(np.uint8)
cv2.imshow("img", img)
key = chr(cv2.waitKey() & 255)
if key == 'q':
break
#if not visualize:
# iterator.set_description("acc: {0:.4f}; avg_ed: {0:.4f}".format(
# float(tp) / float(count), float(avg_ed) / float(count)))
#with open(output_path + '_{}_{}_statistics.pkl'.format(initial_title,n_iter), 'wb') as sf:
# pkl.dump(test_letter_statistics.total_actions_hists, sf)
if do_results and output_path is not None:
print('printing results! :)')
sorted_im_by_error = sorted(im_by_error.items(),
key=operator.itemgetter(1))
sorted_im = [key for (key, value) in sorted_im_by_error]
all_im_pathes_no_new_line = [
im.replace('\n', '') for im in all_im_pathes
]
printed_res_best = ""
printed_res_worst = ""
for im in sorted_im[:20]:
im_id = all_im_pathes_no_new_line.index(im)
pred = all_pred_text[im_id]
label = all_label_text[im_id]
printed_res_best += im + '\n' + label + pred
for im in list(reversed(sorted_im))[:20]:
im_id = all_im_pathes_no_new_line.index(im)
pred = all_pred_text[im_id]
label = all_label_text[im_id]
printed_res_worst += im + '\n' + label + pred
with open(
output_path + '_{}_{}_sorted_images_by_errors.txt'.format(
initial_title, n_iter), 'w') as fp:
fp.writelines([
key + ',' + str(value) + '\n'
for (key, value) in sorted_im_by_error
])
with open(
output_path +
'_{}_{}_res_on_best.txt'.format(initial_title, n_iter),
'w') as fp:
fp.writelines([printed_res_best])
with open(
output_path +
'_{}_{}_res_on_worst.txt'.format(initial_title, n_iter),
'w') as fp:
fp.writelines([printed_res_worst])
os.makedirs(output_path, exist_ok=True)
with open(
output_path + '_{}_{}_pred.txt'.format(initial_title, n_iter),
'w') as fp:
fp.writelines(all_pred_text)
with open(
output_path + '_{}_{}_label.txt'.format(initial_title, n_iter),
'w') as fp:
fp.writelines(all_label_text)
with open(output_path + '_{}_{}_im.txt'.format(initial_title, n_iter),
'w') as fp:
fp.writelines(all_im_pathes)
stop_characters = ['-', '.', '༎', '༑', '།', '་']
all_pred_text = [
''.join(c for c in line if not c in stop_characters)
for line in all_pred_text
]
with open(
output_path +
'_{}_{}_pred_no_stopchars.txt'.format(initial_title, n_iter),
'w') as rf:
rf.writelines(all_pred_text)
all_label_text = [
''.join(c for c in line if not c in stop_characters)
for line in all_label_text
]
with open(
output_path +
'_{}_{}_label_no_stopchars.txt'.format(initial_title, n_iter),
'w') as rf:
rf.writelines(all_label_text)
acc = float(avg_accuracy) / float(count)
avg_ed = float(avg_ed) / float(count)
avg_no_stop_ed = float(avg_no_stop_ed) / float(count)
if loss_function is not None:
avg_loss = float(avg_loss) / float(count)
return acc, avg_ed, avg_no_stop_ed, avg_loss
return acc, avg_ed, avg_no_stop_ed
def main(base_data_dir, train_data_path, train_base_dir, orig_eval_data_path,
orig_eval_base_dir, synth_eval_data_path, synth_eval_base_dir,
lexicon_path, seq_proj, backend, snapshot, input_height, base_lr,
elastic_alpha, elastic_sigma, step_size, max_iter, batch_size,
output_dir, test_iter, show_iter, test_init, use_gpu,
use_no_font_repeat_data, do_vat, do_at, vat_ratio, test_vat_ratio,
vat_epsilon, vat_ip, vat_xi, vat_sign, do_remove_augs, aug_to_remove,
do_beam_search, dropout_conv, dropout_rnn, dropout_output, do_ema,
do_gray, do_test_vat, do_test_entropy, do_test_vat_cnn,
do_test_vat_rnn, ada_after_rnn, ada_before_rnn, do_ada_lr, ada_ratio,
rnn_hidden_size, do_lr_step, dataset_name):
if not do_lr_step and not do_ada_lr:
raise NotImplementedError(
'learning rate should be either step or ada.')
train_data_path = os.path.join(base_data_dir, train_data_path)
train_base_dir = os.path.join(base_data_dir, train_base_dir)
synth_eval_data_path = os.path.join(base_data_dir, synth_eval_data_path)
synth_eval_base_dir = os.path.join(base_data_dir, synth_eval_base_dir)
orig_eval_data_path = os.path.join(base_data_dir, orig_eval_data_path)
orig_eval_base_dir = os.path.join(base_data_dir, orig_eval_base_dir)
lexicon_path = os.path.join(base_data_dir, lexicon_path)
all_parameters = locals()
cuda = use_gpu
#print(train_base_dir)
if output_dir is not None:
os.makedirs(output_dir, exist_ok=True)
tb_writer = TbSummary(output_dir)
output_dir = os.path.join(output_dir, 'model')
os.makedirs(output_dir, exist_ok=True)
with open(lexicon_path, 'rb') as f:
lexicon = pkl.load(f)
#print(sorted(lexicon.items(), key=operator.itemgetter(1)))
with open(os.path.join(output_dir, 'params.txt'), 'w') as f:
f.writelines(str(all_parameters))
print(all_parameters)
print('new vat')
sin_magnitude = 4
rotate_max_angle = 2
dataset_info = SynthDataInfo(None, None, None, dataset_name.lower())
train_fonts = dataset_info.font_names
all_args = locals()
allowed_removals = [
'elastic', 'sine', 'sine_rotate', 'rotation', 'color_aug',
'color_gaus', 'color_sine'
]
if do_remove_augs and aug_to_remove not in allowed_removals:
raise Exception('augmentation removal value is not allowed.')
if do_remove_augs:
rand_trans = []
if aug_to_remove == 'elastic':
print('doing sine transform :)')
rand_trans.append(OnlySine(sin_magnitude=sin_magnitude))
elif aug_to_remove in ['sine', 'sine_rotate']:
print('doing elastic transform :)')
rand_trans.append(
OnlyElastic(elastic_alpha=elastic_alpha,
elastic_sigma=elastic_sigma))
if aug_to_remove not in ['elastic', 'sine', 'sine_rotate']:
print('doing elastic transform :)')
print('doing sine transform :)')
rand_trans.append(
ElasticAndSine(elastic_alpha=elastic_alpha,
elastic_sigma=elastic_sigma,
sin_magnitude=sin_magnitude))
if aug_to_remove not in ['rotation', 'sine_rotate']:
print('doing rotation transform :)')
rand_trans.append(Rotation(angle=rotate_max_angle, fill_value=255))
if aug_to_remove not in ['color_aug', 'color_gaus', 'color_sine']:
print('doing color_aug transform :)')
rand_trans.append(ColorGradGausNoise())
elif aug_to_remove == 'color_gaus':
print('doing color_sine transform :)')
rand_trans.append(ColorGrad())
elif aug_to_remove == 'color_sine':
print('doing color_gaus transform :)')
rand_trans.append(ColorGausNoise())
else:
print('doing all transforms :)')
rand_trans = [
ElasticAndSine(elastic_alpha=elastic_alpha,
elastic_sigma=elastic_sigma,
sin_magnitude=sin_magnitude),
Rotation(angle=rotate_max_angle, fill_value=255),
ColorGradGausNoise()
]
if do_gray:
rand_trans = rand_trans + [
Resize(hight=input_height),
AddWidth(),
ToGray(),
Normalize()
]
else:
rand_trans = rand_trans + [
Resize(hight=input_height),
AddWidth(), Normalize()
]
transform_random = Compose(rand_trans)
if do_gray:
transform_simple = Compose(
[Resize(hight=input_height),
AddWidth(),
ToGray(),
Normalize()])
else:
transform_simple = Compose(
[Resize(hight=input_height),
AddWidth(), Normalize()])
if use_no_font_repeat_data:
print('creating dataset')
train_data = TextDatasetRandomFont(data_path=train_data_path,
lexicon=lexicon,
base_path=train_base_dir,
transform=transform_random,
fonts=train_fonts)
print('finished creating dataset')
else:
print('train data path:\n{}'.format(train_data_path))
print('train_base_dir:\n{}'.format(train_base_dir))
train_data = TextDataset(data_path=train_data_path,
lexicon=lexicon,
base_path=train_base_dir,
transform=transform_random,
fonts=train_fonts)
synth_eval_data = TextDataset(data_path=synth_eval_data_path,
lexicon=lexicon,
base_path=synth_eval_base_dir,
transform=transform_random,
fonts=train_fonts)
orig_eval_data = TextDataset(data_path=orig_eval_data_path,
lexicon=lexicon,
base_path=orig_eval_base_dir,
transform=transform_simple,
fonts=None)
if do_test_vat or do_test_vat_rnn or do_test_vat_cnn:
orig_vat_data = TextDataset(data_path=orig_eval_data_path,
lexicon=lexicon,
base_path=orig_eval_base_dir,
transform=transform_simple,
fonts=None)
if ada_after_rnn or ada_before_rnn:
orig_ada_data = TextDataset(data_path=orig_eval_data_path,
lexicon=lexicon,
base_path=orig_eval_base_dir,
transform=transform_simple,
fonts=None)
#else:
# train_data = TestDataset(transform=transform, abc=abc).set_mode("train")
# synth_eval_data = TestDataset(transform=transform, abc=abc).set_mode("test")
# orig_eval_data = TestDataset(transform=transform, abc=abc).set_mode("test")
seq_proj = [int(x) for x in seq_proj.split('x')]
net = load_model(lexicon=train_data.get_lexicon(),
seq_proj=seq_proj,
backend=backend,
snapshot=snapshot,
cuda=cuda,
do_beam_search=do_beam_search,
dropout_conv=dropout_conv,
dropout_rnn=dropout_rnn,
dropout_output=dropout_output,
do_ema=do_ema,
ada_after_rnn=ada_after_rnn,
ada_before_rnn=ada_before_rnn,
rnn_hidden_size=rnn_hidden_size)
optimizer = optim.Adam(net.parameters(), lr=base_lr, weight_decay=0.0001)
if do_ada_lr:
print('using ada lr')
lr_scheduler = DannLR(optimizer, max_iter=max_iter)
elif do_lr_step:
print('using step lr')
lr_scheduler = StepLR(optimizer,
step_size=step_size,
max_iter=max_iter)
loss_function = CTCLoss()
synth_avg_ed_best = float("inf")
orig_avg_ed_best = float("inf")
epoch_count = 0
if do_test_vat or do_test_vat_rnn or do_test_vat_cnn:
collate_vat = lambda x: text_collate(x, do_mask=True)
vat_load = DataLoader(orig_vat_data,
batch_size=batch_size,
num_workers=4,
shuffle=True,
collate_fn=collate_vat)
vat_len = len(vat_load)
cur_vat = 0
vat_iter = iter(vat_load)
if ada_after_rnn or ada_before_rnn:
collate_ada = lambda x: text_collate(x, do_mask=True)
ada_load = DataLoader(orig_ada_data,
batch_size=batch_size,
num_workers=4,
shuffle=True,
collate_fn=collate_ada)
ada_len = len(ada_load)
cur_ada = 0
ada_iter = iter(ada_load)
loss_domain = torch.nn.NLLLoss()
while True:
collate = lambda x: text_collate(
x, do_mask=(do_vat or ada_before_rnn or ada_after_rnn))
data_loader = DataLoader(train_data,
batch_size=batch_size,
num_workers=4,
shuffle=True,
collate_fn=collate)
loss_mean_ctc = []
loss_mean_vat = []
loss_mean_at = []
loss_mean_comp = []
loss_mean_total = []
loss_mean_test_vat = []
loss_mean_test_pseudo = []
loss_mean_test_rand = []
loss_mean_ada_rnn_s = []
loss_mean_ada_rnn_t = []
loss_mean_ada_cnn_s = []
loss_mean_ada_cnn_t = []
iterator = tqdm(data_loader)
iter_count = 0
for iter_num, sample in enumerate(iterator):
total_iter = (epoch_count * len(data_loader)) + iter_num
if ((total_iter > 1)
and total_iter % test_iter == 0) or (test_init
and total_iter == 0):
# epoch_count != 0 and
print("Test phase")
net = net.eval()
if do_ema:
net.start_test()
synth_acc, synth_avg_ed, synth_avg_no_stop_ed, synth_avg_loss = test(
net,
synth_eval_data,
synth_eval_data.get_lexicon(),
cuda,
visualize=False,
dataset_info=dataset_info,
batch_size=batch_size,
tb_writer=tb_writer,
n_iter=total_iter,
initial_title='val_synth',
loss_function=loss_function,
output_path=os.path.join(output_dir, 'results'),
do_beam_search=False)
orig_acc, orig_avg_ed, orig_avg_no_stop_ed, orig_avg_loss = test(
net,
orig_eval_data,
orig_eval_data.get_lexicon(),
cuda,
visualize=False,
dataset_info=dataset_info,
batch_size=batch_size,
tb_writer=tb_writer,
n_iter=total_iter,
initial_title='test_orig',
loss_function=loss_function,
output_path=os.path.join(output_dir, 'results'),
do_beam_search=do_beam_search)
net = net.train()
#save periodic
if output_dir is not None and total_iter // 30000:
periodic_save = os.path.join(output_dir, 'periodic_save')
os.makedirs(periodic_save, exist_ok=True)
old_save = glob.glob(os.path.join(periodic_save, '*'))
torch.save(
net.state_dict(),
os.path.join(output_dir, "crnn_" + backend + "_" +
str(total_iter)))
if orig_avg_no_stop_ed < orig_avg_ed_best:
orig_avg_ed_best = orig_avg_no_stop_ed
if output_dir is not None:
torch.save(
net.state_dict(),
os.path.join(output_dir,
"crnn_" + backend + "_best"))
if synth_avg_no_stop_ed < synth_avg_ed_best:
synth_avg_ed_best = synth_avg_no_stop_ed
if do_ema:
net.end_test()
print(
"synth: avg_ed_best: {}\t avg_ed: {}; avg_nostop_ed: {}; acc: {}"
.format(synth_avg_ed_best, synth_avg_ed,
synth_avg_no_stop_ed, synth_acc))
print(
"orig: avg_ed_best: {}\t avg_ed: {}; avg_nostop_ed: {}; acc: {}"
.format(orig_avg_ed_best, orig_avg_ed, orig_avg_no_stop_ed,
orig_acc))
tb_writer.get_writer().add_scalars(
'data/test', {
'synth_ed_total': synth_avg_ed,
'synth_ed_no_stop': synth_avg_no_stop_ed,
'synth_avg_loss': synth_avg_loss,
'orig_ed_total': orig_avg_ed,
'orig_ed_no_stop': orig_avg_no_stop_ed,
'orig_avg_loss': orig_avg_loss
}, total_iter)
if len(loss_mean_ctc) > 0:
train_dict = {'mean_ctc_loss': np.mean(loss_mean_ctc)}
if do_vat:
train_dict = {
**train_dict,
**{
'mean_vat_loss': np.mean(loss_mean_vat)
}
}
if do_at:
train_dict = {
**train_dict,
**{
'mean_at_loss': np.mean(loss_mean_at)
}
}
if do_test_vat:
train_dict = {
**train_dict,
**{
'mean_test_vat_loss': np.mean(loss_mean_test_vat)
}
}
if do_test_vat_rnn and do_test_vat_cnn:
train_dict = {
**train_dict,
**{
'mean_test_vat_crnn_loss':
np.mean(loss_mean_test_vat)
}
}
elif do_test_vat_rnn:
train_dict = {
**train_dict,
**{
'mean_test_vat_rnn_loss':
np.mean(loss_mean_test_vat)
}
}
elif do_test_vat_cnn:
train_dict = {
**train_dict,
**{
'mean_test_vat_cnn_loss':
np.mean(loss_mean_test_vat)
}
}
if ada_after_rnn:
train_dict = {
**train_dict,
**{
'mean_ada_rnn_s_loss': np.mean(loss_mean_ada_rnn_s),
'mean_ada_rnn_t_loss': np.mean(loss_mean_ada_rnn_t)
}
}
if ada_before_rnn:
train_dict = {
**train_dict,
**{
'mean_ada_cnn_s_loss': np.mean(loss_mean_ada_cnn_s),
'mean_ada_cnn_t_loss': np.mean(loss_mean_ada_cnn_t)
}
}
print(train_dict)
tb_writer.get_writer().add_scalars('data/train',
train_dict, total_iter)
'''
# for multi-gpu support
if sample["img"].size(0) % len(gpu.split(',')) != 0:
continue
'''
optimizer.zero_grad()
imgs = Variable(sample["img"])
#print("images sizes are:")
#print(sample["img"].shape)
if do_vat or ada_after_rnn or ada_before_rnn:
mask = sample['mask']
labels_flatten = Variable(sample["seq"]).view(-1)
label_lens = Variable(sample["seq_len"].int())
#print("image sequence length is:")
#print(sample["im_seq_len"])
#print("label sequence length is:")
#print(sample["seq_len"].view(1,-1))
img_seq_lens = sample["im_seq_len"]
if cuda:
imgs = imgs.cuda()
if do_vat or ada_after_rnn or ada_before_rnn:
mask = mask.cuda()
if do_ada_lr:
ada_p = float(iter_count) / max_iter
lr_scheduler.update(ada_p)
if ada_before_rnn or ada_after_rnn:
if not do_ada_lr:
ada_p = float(iter_count) / max_iter
ada_alpha = 2. / (1. + np.exp(-10. * ada_p)) - 1
if cur_ada >= ada_len:
ada_load = DataLoader(orig_ada_data,
batch_size=batch_size,
num_workers=4,
shuffle=True,
collate_fn=collate_ada)
ada_len = len(ada_load)
cur_ada = 0
ada_iter = iter(ada_load)
ada_batch = next(ada_iter)
cur_ada += 1
ada_imgs = Variable(ada_batch["img"])
ada_img_seq_lens = ada_batch["im_seq_len"]
ada_mask = ada_batch['mask'].byte()
if cuda:
ada_imgs = ada_imgs.cuda()
_, ada_cnn, ada_rnn = net(ada_imgs,
ada_img_seq_lens,
ada_alpha=ada_alpha,
mask=ada_mask)
if ada_before_rnn:
ada_num_features = ada_cnn.size(0)
else:
ada_num_features = ada_rnn.size(0)
domain_label = torch.zeros(ada_num_features)
domain_label = domain_label.long()
if cuda:
domain_label = domain_label.cuda()
domain_label = Variable(domain_label)
if ada_before_rnn:
err_ada_cnn_t = loss_domain(ada_cnn, domain_label)
if ada_after_rnn:
err_ada_rnn_t = loss_domain(ada_rnn, domain_label)
if do_test_vat and do_at:
# test part!
if cur_vat >= vat_len:
vat_load = DataLoader(orig_vat_data,
batch_size=batch_size,
num_workers=4,
shuffle=True,
collate_fn=collate_vat)
vat_len = len(vat_load)
cur_vat = 0
vat_iter = iter(vat_load)
test_vat_batch = next(vat_iter)
cur_vat += 1
test_vat_mask = test_vat_batch['mask']
test_vat_imgs = Variable(test_vat_batch["img"])
test_vat_img_seq_lens = test_vat_batch["im_seq_len"]
if cuda:
test_vat_imgs = test_vat_imgs.cuda()
test_vat_mask = test_vat_mask.cuda()
# train part
at_test_vat_loss = LabeledAtAndUnlabeledTestVatLoss(
xi=vat_xi, eps=vat_epsilon, ip=vat_ip)
at_loss, test_vat_loss = at_test_vat_loss(
model=net,
train_x=imgs,
train_labels_flatten=labels_flatten,
train_img_seq_lens=img_seq_lens,
train_label_lens=label_lens,
batch_size=batch_size,
test_x=test_vat_imgs,
test_seq_len=test_vat_img_seq_lens,
test_mask=test_vat_mask)
elif do_test_vat or do_test_vat_rnn or do_test_vat_cnn:
if cur_vat >= vat_len:
vat_load = DataLoader(orig_vat_data,
batch_size=batch_size,
num_workers=4,
shuffle=True,
collate_fn=collate_vat)
vat_len = len(vat_load)
cur_vat = 0
vat_iter = iter(vat_load)
vat_batch = next(vat_iter)
cur_vat += 1
vat_mask = vat_batch['mask']
vat_imgs = Variable(vat_batch["img"])
vat_img_seq_lens = vat_batch["im_seq_len"]
if cuda:
vat_imgs = vat_imgs.cuda()
vat_mask = vat_mask.cuda()
if do_test_vat:
if do_test_vat_rnn or do_test_vat_cnn:
raise "can only do one of do_test_vat | (do_test_vat_rnn, do_test_vat_cnn)"
if vat_sign == True:
test_vat_loss = VATLossSign(
do_test_entropy=do_test_entropy,
xi=vat_xi,
eps=vat_epsilon,
ip=vat_ip)
else:
test_vat_loss = VATLoss(xi=vat_xi,
eps=vat_epsilon,
ip=vat_ip)
elif do_test_vat_rnn and do_test_vat_cnn:
test_vat_loss = VATonRnnCnnSign(xi=vat_xi,
eps=vat_epsilon,
ip=vat_ip)
elif do_test_vat_rnn:
test_vat_loss = VATonRnnSign(xi=vat_xi,
eps=vat_epsilon,
ip=vat_ip)
elif do_test_vat_cnn:
test_vat_loss = VATonCnnSign(xi=vat_xi,
eps=vat_epsilon,
ip=vat_ip)
if do_test_vat_cnn and do_test_vat_rnn:
test_vat_loss, cnn_lds, rnn_lds = test_vat_loss(
net, vat_imgs, vat_img_seq_lens, vat_mask)
elif do_test_vat:
test_vat_loss = test_vat_loss(net, vat_imgs,
vat_img_seq_lens, vat_mask)
elif do_vat:
vat_loss = VATLoss(xi=vat_xi, eps=vat_epsilon, ip=vat_ip)
vat_loss = vat_loss(net, imgs, img_seq_lens, mask)
elif do_at:
at_loss = LabeledATLoss(xi=vat_xi, eps=vat_epsilon, ip=vat_ip)
at_loss = at_loss(net, imgs, labels_flatten, img_seq_lens,
label_lens, batch_size)
if ada_after_rnn or ada_before_rnn:
preds, ada_cnn, ada_rnn = net(imgs,
img_seq_lens,
ada_alpha=ada_alpha,
mask=mask)
if ada_before_rnn:
ada_num_features = ada_cnn.size(0)
else:
ada_num_features = ada_rnn.size(0)
domain_label = torch.ones(ada_num_features)
domain_label = domain_label.long()
if cuda:
domain_label = domain_label.cuda()
domain_label = Variable(domain_label)
if ada_before_rnn:
err_ada_cnn_s = loss_domain(ada_cnn, domain_label)
if ada_after_rnn:
err_ada_rnn_s = loss_domain(ada_rnn, domain_label)
else:
preds = net(imgs, img_seq_lens)
'''
if output_dir is not None:
if (show_iter is not None and iter_num != 0 and iter_num % show_iter == 0):
print_data_visuals(net, tb_writer, train_data.get_lexicon(), sample["img"], labels_flatten, label_lens,
preds, ((epoch_count * len(data_loader)) + iter_num))
'''
loss_ctc = loss_function(
preds, labels_flatten,
Variable(torch.IntTensor(np.array(img_seq_lens))),
label_lens) / batch_size
if loss_ctc.data[0] in [float("inf"), -float("inf")]:
print("warnning: loss should not be inf.")
continue
total_loss = loss_ctc
if do_vat:
#mask = sample['mask']
#if cuda:
# mask = mask.cuda()
#vat_loss = virtual_adversarial_loss(net, imgs, img_seq_lens, mask, is_training=True, do_entropy=False, epsilon=vat_epsilon, num_power_iterations=1,
# xi=1e-6, average_loss=True)
total_loss = total_loss + vat_ratio * vat_loss.cpu()
if do_test_vat or do_test_vat_rnn or do_test_vat_cnn:
total_loss = total_loss + test_vat_ratio * test_vat_loss.cpu()
if ada_before_rnn:
total_loss = total_loss + ada_ratio * err_ada_cnn_s.cpu(
) + ada_ratio * err_ada_cnn_t.cpu()
if ada_after_rnn:
total_loss = total_loss + ada_ratio * err_ada_rnn_s.cpu(
) + ada_ratio * err_ada_rnn_t.cpu()
total_loss.backward()
nn.utils.clip_grad_norm(net.parameters(), 10.0)
if -400 < loss_ctc.data[0] < 400:
loss_mean_ctc.append(loss_ctc.data[0])
if -1000 < total_loss.data[0] < 1000:
loss_mean_total.append(total_loss.data[0])
if len(loss_mean_total) > 100:
loss_mean_total = loss_mean_total[-100:]
status = "epoch: {0:5d}; iter_num: {1:5d}; lr: {2:.2E}; loss_mean: {3:.3f}; loss: {4:.3f}".format(
epoch_count, lr_scheduler.last_iter, lr_scheduler.get_lr(),
np.mean(loss_mean_total), loss_ctc.data[0])
if ada_after_rnn:
loss_mean_ada_rnn_s.append(err_ada_rnn_s.data[0])
loss_mean_ada_rnn_t.append(err_ada_rnn_t.data[0])
status += "; ladatrnns: {0:.3f}; ladatrnnt: {1:.3f}".format(
err_ada_rnn_s.data[0], err_ada_rnn_t.data[0])
if ada_before_rnn:
loss_mean_ada_cnn_s.append(err_ada_cnn_s.data[0])
loss_mean_ada_cnn_t.append(err_ada_cnn_t.data[0])
status += "; ladatcnns: {0:.3f}; ladatcnnt: {1:.3f}".format(
err_ada_cnn_s.data[0], err_ada_cnn_t.data[0])
if do_vat:
loss_mean_vat.append(vat_loss.data[0])
status += "; lvat: {0:.3f}".format(vat_loss.data[0])
if do_at:
loss_mean_at.append(at_loss.data[0])
status += "; lat: {0:.3f}".format(at_loss.data[0])
if do_test_vat:
loss_mean_test_vat.append(test_vat_loss.data[0])
status += "; l_tvat: {0:.3f}".format(test_vat_loss.data[0])
if do_test_vat_rnn or do_test_vat_cnn:
loss_mean_test_vat.append(test_vat_loss.data[0])
if do_test_vat_rnn and do_test_vat_cnn:
status += "; l_tvatc: {}".format(cnn_lds.data[0])
status += "; l_tvatr: {}".format(rnn_lds.data[0])
else:
status += "; l_tvat: {}".format(test_vat_loss.data[0])
iterator.set_description(status)
optimizer.step()
if do_lr_step:
lr_scheduler.step()
if do_ema:
net.udate_ema()
iter_count += 1
if output_dir is not None:
torch.save(net.state_dict(),
os.path.join(output_dir, "crnn_" + backend + "_last"))
epoch_count += 1
return