def train(A_train_loader, B_train_loader, model, epoch):
# switch to train mode
model.train()
for i, (A_image, A_label) in enumerate(A_train_loader):
B_image = next(iter(B_train_loader))
model.set_input({'A': A_image, 'A_label': A_label, 'B': B_image})
model.optimize_parameters()
output = model.output
if i % args['print_freq'] == 0:
matrix = ConfusionMatrix()
update_confusion_matrix(matrix, output.data, A_label)
logger.info('Epoch/Iter: [{epoch}/{Iter}]\t'
'loss: {loss:.4f}\t'
'acc: {accuracy:.4f}\t'
'fg_acc: {fg_accuracy:.4f}\t'
'avg_prec: {avg_precision:.4f}\t'
'avg_rec: {avg_recall:.4f}\t'
'avg_f1: {avg_f1core:.4f}\t'
'loss_G: {loss_G:.4f}\t'
'loss_D: {loss_D:.4f}\t'.format(
epoch=epoch,
Iter=i + epoch * len(A_train_loader),
loss=model.loss_P.data[0],
accuracy=matrix.accuracy(),
fg_accuracy=matrix.fg_accuracy(),
avg_precision=matrix.avg_precision(),
avg_recall=matrix.avg_recall(),
avg_f1core=matrix.avg_f1score(),
loss_G=model.loss_G.data[0],
loss_D=model.loss_D.data[0]))
def validate(val_loader, model, criterion, adaptation):
# switch to evaluate mode
run_time = time.time()
matrix = ConfusionMatrix(args['label_nums'])
loss = 0
for i, (images, labels) in enumerate(val_loader):
labels = labels.cuda(async=True)
target_var = torch.autograd.Variable(labels, volatile=True)
model.test(images)
output = model.output
loss += criterion(output, target_var) / args['batch_size']
matrix = update_confusion_matrix(matrix, output.data, labels)
loss /= (i + 1)
run_time = time.time() - run_time
logger.info('=================================================')
logger.info('val:'
'loss: {0:.4f}\t'
'accuracy: {1:.4f}\t'
'fg_accuracy: {2:.4f}\t'
'avg_precision: {3:.4f}\t'
'avg_recall: {4:.4f}\t'
'avg_f1score: {5:.4f}\t'
'run_time:{run_time:.2f}\t'.format(loss.data[0],
matrix.accuracy(),
matrix.fg_accuracy(),
matrix.avg_precision(),
matrix.avg_recall(),
matrix.avg_f1score(),
run_time=run_time))
logger.info('=================================================')
return matrix.all_acc()
def train(A_train_loader, B_train_loader, model, epoch):
# switch to train mode
model.train()
for i, (A_image, A_label) in enumerate(A_train_loader):
B_image = next(iter(B_train_loader))
model.set_input({'A': A_image, 'A_label': A_label, 'B': B_image})
model.forward()
model.optimize_parameters()
output = model.output
if i % args['print_freq'] == 0:
matrix = ConfusionMatrix()
update_confusion_matrix(matrix, output.data, A_label)
print('Time: {time}\t'
'Epoch/Iter: [{epoch}/{Iter}]\t'
'loss: {loss:.4f}\t'
'acc: {accuracy:.4f}\t'
'fg_acc: {fg_accuracy:.4f}\t'
'avg_prec: {avg_precision:.4f}\t'
'avg_rec: {avg_recall:.4f}\t'
'avg_f1: {avg_f1core:.4f}\t'
'loss_G: {loss_G:.4f}\t'
'loss_D: {loss_D:.4f}\t'
'loss_G_S: {loss_G_S:.4f}\t'
'loss_D_S: {loss_D_S:.4f}\t'
'loss_ref: {loss_ref}'.format(
time=time.strftime("%Y-%m-%d_%H:%M:%S",
time.localtime()),
epoch=epoch,
Iter=i + epoch * len(A_train_loader),
loss=model.loss_P.data[0],
accuracy=matrix.accuracy(),
fg_accuracy=matrix.fg_accuracy(),
avg_precision=matrix.avg_precision(),
avg_recall=matrix.avg_recall(),
avg_f1core=matrix.avg_f1score(),
loss_G=model.loss_G.data[0],
loss_D=model.loss_D.data[0],
loss_G_S=model.loss_G_S.data[0],
loss_D_S=model.loss_D_S.data[0],
loss_ref=model.loss_refine.data[0]))
def train(train_loader, model, criterion, optimizer, epoch):
# switch to train mode
model.train()
for i, (images, labels) in enumerate(train_loader):
run_time = time.time()
labels = labels.cuda(async=True)
input_var = torch.autograd.Variable(images)
target_var = torch.autograd.Variable(labels)
# compute output
output = model.forward(input_var)
loss = criterion(output, target_var) / args['batch_size']
# compute gradient and do SGD step
optimizer.zero_grad()
loss.backward()
optimizer.step()
if i % args['print_freq'] == 0:
matrix = ConfusionMatrix()
update_confusion_matrix(matrix, output.data, labels)
run_time = time.time() - run_time
print('Epoch/Iter: [{epoch}/{iter}]\t'
'loss: {loss:.4f}\t'
'acc: {accuracy:.4f}\t'
'fg_acc: {fg_accuracy:.4f}\t'
'avg_prec: {avg_precision:.4f}\t'
'avg_rec: {avg_recall:.4f}\t'
'avg_f1: {avg_f1:.4f}\t'
'run_time:{run_time:.2f}\t'.format(
epoch=epoch,
iter=i + epoch * len(train_loader),
loss=loss.data[0],
accuracy=matrix.accuracy(),
fg_accuracy=matrix.fg_accuracy(),
avg_precision=matrix.avg_precision(),
avg_recall=matrix.avg_recall(),
avg_f1core=matrix.avg_f1score(),
run_time=run_time))
def main():
makedirs.mkdirs(os.path.join(args['checkpoints_dir'], args['name']))
if len(args['device_ids']) > 0:
torch.cuda.set_device(args['device_ids'][0])
A_train_loader = data.DataLoader(imageLabelLoader(args['data_path'],dataName=args['domainA'], phase='train'), batch_size=args['batch_size'],
num_workers=args['num_workers'], shuffle=True)
A_val_loader = data.DataLoader(imageLabelLoader(args['data_path'], dataName=args['domainA'], phase='val'), batch_size=args['batch_size'],
num_workers=args['num_workers'], shuffle=False)
B_train_loader = data.DataLoader(imageLoader(args['data_path'], dataName=args['domainB'], phase='train+unlabel'),
batch_size=args['batch_size'],
num_workers=args['num_workers'], shuffle=True)
B_val_loader = data.DataLoader(imageLabelLoader(args['data_path'], dataName=args['domainB'], phase='val'),
batch_size=args['batch_size'],
num_workers=args['num_workers'], shuffle=False)
model = deeplabGanWithRefine()
model.initialize(args)
# multi GPUS
# model = torch.nn.DataParallel(model,device_ids=args['device_ids']).cuda()
Iter = 0
if args['resume']:
if os.path.isfile(args['resume']):
logger.info("=> loading checkpoint '{}'".format(args['resume']))
model.load(args['resume'])
else:
print("=> no checkpoint found at '{}'".format(args['resume']))
best_Ori_on_B = 0
best_Ada_on_B = 0
model.train()
for epoch in range(args['n_epoch']):
# train(A_train_loader, B_train_loader, model, epoch)
# switch to train mode
for i, (A_image, A_label) in enumerate(A_train_loader):
Iter += 1
B_image = next(iter(B_train_loader))
model.set_input({'A': A_image, 'A_label': A_label, 'B': B_image})
model.optimize_parameters()
output = model.output
if i % args['print_freq'] == 0:
matrix = ConfusionMatrix()
update_confusion_matrix(matrix, output.data, A_label)
logger.info('Time: {time}\t'
'Epoch/Iter: [{epoch}/{Iter}]\t'
'loss: {loss:.4f}\t'
'loss_R: {loss_R:.4f}\t'
'acc: {accuracy:.4f}\t'
'fg_acc: {fg_accuracy:.4f}\t'
'avg_prec: {avg_precision:.4f}\t'
'avg_rec: {avg_recall:.4f}\t'
'avg_f1: {avg_f1core:.4f}\t'
'loss_G: {loss_G:.4f}\t'
'loss_D: {loss_D:.4f}\t'.format(
time=time.strftime("%Y-%m-%d_%H:%M:%S", time.localtime()),
epoch=epoch, Iter=Iter, loss=model.loss_P.data[0],
loss_R=model.loss_R.data[0], accuracy=matrix.accuracy(),
fg_accuracy=matrix.fg_accuracy(), avg_precision=matrix.avg_precision(),
avg_recall=matrix.avg_recall(), avg_f1core=matrix.avg_f1score(),
loss_G=model.loss_G.data[0], loss_D=model.loss_D.data[0]))
if Iter % 1000 == 0:
model.eval()
acc_Ori_on_A = validate(A_val_loader, model, nn.CrossEntropyLoss(size_average=False), False)
acc_Ori_on_B = validate(B_val_loader, model, nn.CrossEntropyLoss(size_average=False), False)
acc_Ada_on_B = validate(B_val_loader, model, nn.CrossEntropyLoss(size_average=False), True)
prec_Ori_on_B = acc_Ori_on_B['avg_f1score']
prec_Ada_on_B = acc_Ada_on_B['avg_f1score']
is_best = prec_Ori_on_B > best_Ori_on_B
best_Ori_on_B = max(prec_Ori_on_B, best_Ori_on_B)
if is_best:
model.save('best_Ori_on_B', Iter=Iter, epoch=epoch, acc={'acc_Ori_on_A':acc_Ori_on_A, 'acc_Ori_on_B':acc_Ori_on_B, 'acc_Ada_on_B':acc_Ada_on_B})
is_best = prec_Ada_on_B > best_Ada_on_B
best_Ada_on_B = max(prec_Ada_on_B, best_Ada_on_B)
if is_best:
model.save('best_Ada_on_B', Iter=Iter, epoch=epoch, acc={'acc_Ori_on_A':acc_Ori_on_A, 'acc_Ori_on_B':acc_Ori_on_B, 'acc_Ada_on_B':acc_Ada_on_B})
model.train()
