def train(model,
train_loader,
dev_loader,
optimizer,
scheduler,
max_epoch,
model_dir,
encoder,
gpu_mode,
eval_frequency=500):
model.train()
train_loss = 0
total_steps = 0
print_freq = 50
dev_score_list = []
top1 = imsitu_scorer(encoder, 1, 3)
top5 = imsitu_scorer(encoder, 5, 3)
'''print('init param data check :')
for f in model.parameters():
if f.requires_grad:
print(f.data.size())'''
for epoch in range(max_epoch):
#print('current sample : ', i, img.size(), verb.size(), roles.size(), labels.size())
#sizes batch_size*3*height*width, batch*504*1, batch*6*190*1, batch*3*6*lebale_count*1
mx = len(train_loader)
for i, (img, verb, roles, labels) in enumerate(train_loader):
#print("epoch{}-{}/{} batches\r".format(epoch,i+1,mx)) ,
total_steps += 1
if gpu_mode >= 0:
img = torch.autograd.Variable(img.cuda())
roles = torch.autograd.Variable(roles.cuda())
verb = torch.autograd.Variable(verb.cuda())
labels = torch.autograd.Variable(labels.cuda())
else:
img = torch.autograd.Variable(img)
verb = torch.autograd.Variable(verb)
roles = torch.autograd.Variable(roles)
labels = torch.autograd.Variable(labels)
optimizer.zero_grad()
verb_predict, role_predict, norm, verb_marginal, best_role_ids = model(
img, verb, roles)
loss = model.calculate_loss(verb_predict, verb, norm, role_predict,
labels)
loss.backward()
optimizer.step()
'''print('grad check :')
for f in model.parameters():
print('data is')
print(f.data)
print('grad is')
print(f.grad)'''
train_loss += loss.item()
top1.add_point(verb_marginal, verb, best_role_ids, labels, roles)
top5.add_point(verb_marginal, verb, best_role_ids, labels, roles)
if total_steps % print_freq == 0:
top1_a = top1.get_average_results()
top5_a = top5.get_average_results()
print("{},{},{}, {} , {}, loss = {:.2f}, avg loss = {:.2f}".
format(total_steps - 1, epoch, i,
utils.format_dict(top1_a, "{:.2f}", "1-"),
utils.format_dict(top5_a, "{:.2f}", "5-"),
loss.item(), train_loss /
((total_steps - 1) % eval_frequency)))
if total_steps % eval_frequency == 0:
top1, top5, val_loss = eval(model, dev_loader, encoder,
gpu_mode)
model.train()
top1_avg = top1.get_average_results()
top5_avg = top5.get_average_results()
avg_score = top1_avg["verb"] + top1_avg["value"] + top1_avg["value-all"] + top5_avg["verb"] + \
top5_avg["value"] + top5_avg["value-all"] + top5_avg["value*"] + top5_avg["value-all*"]
avg_score /= 8
print('Dev {} average :{:.2f} {} {}'.format(
total_steps - 1, avg_score * 100,
utils.format_dict(top1_avg, '{:.2f}', '1-'),
utils.format_dict(top5_avg, '{:.2f}', '5-')))
print('Dev loss :', val_loss)
dev_score_list.append(avg_score)
max_score = max(dev_score_list)
if max_score == dev_score_list[-1]:
checkpoint_name = os.path.join(
model_dir, '{}_devloss_cnngraph_{}.h5'.format(
'baseline', len(dev_score_list)))
utils.save_net(checkpoint_name, model)
print('New best model saved! {0}'.format(max_score))
print('current train loss', train_loss)
train_loss = 0
top1 = imsitu_scorer(encoder, 1, 3)
top5 = imsitu_scorer(encoder, 5, 3)
del verb_predict, role_predict, loss, img, verb, roles, labels
#break
scheduler.step()
print('Epoch ', epoch, ' completed!')
def train(model,
train_loader,
dev_loader,
optimizer,
max_epoch,
model_dir,
encoder,
gpu_mode,
eval_frequency=500):
model.train()
train_loss = 0
total_steps = 0
print_freq = 50
dev_loss_list = []
top1 = imsitu_scorer(encoder, 1, 3)
top5 = imsitu_scorer(encoder, 5, 3)
'''print('init param data check :')
for f in model.parameters():
print('init data and size')
print(f.data)
print(f.data.size())'''
for epoch in range(max_epoch):
#print('current sample : ', i, img.size(), verb.size(), roles.size(), labels.size())
#sizes batch_size*3*height*width, batch*504*1, batch*6*190*1, batch*3*6*lebale_count*1
for i, (img, verb, roles, labels) in enumerate(train_loader):
total_steps += 1
if gpu_mode >= 0:
img = torch.autograd.Variable(img.cuda())
roles = torch.autograd.Variable(roles.cuda())
verb = torch.autograd.Variable(verb.cuda())
labels = torch.autograd.Variable(labels.cuda())
else:
img = torch.autograd.Variable(img)
verb = torch.autograd.Variable(verb)
roles = torch.autograd.Variable(roles)
labels = torch.autograd.Variable(labels)
verb_predict, role_predict = model(img, verb, roles)
loss = model.calculate_loss(verb_predict, verb, role_predict,
labels)
#print('current batch loss = ', loss)
optimizer.zero_grad()
loss.backward()
optimizer.step()
'''print('grad check :')
for f in model.parameters():
print('data is')
print(f.data)
print('grad is')
print(f.grad)'''
train_loss += loss.data
target = torch.max(verb, 1)[1]
#get correct roles for each gt verb from roles pred
target_role_encoding = encoder.get_role_encoding(target)
role_pred_for_target = torch.bmm(target_role_encoding,
role_predict)
top1.add_point(verb_predict, verb, role_pred_for_target, labels)
top5.add_point(verb_predict, verb, role_pred_for_target, labels)
if total_steps % print_freq == 0:
top1_a = top1.get_average_results()
top5_a = top5.get_average_results()
print("{},{},{}, {} , {}, loss = {:.2f}, avg loss = {:.2f}".
format(total_steps - 1, epoch, i,
utils.format_dict(top1_a, "{:.2f}", "1-"),
utils.format_dict(top5_a, "{:.2f}", "5-"),
loss.data[0], train_loss /
((total_steps - 1) % eval_frequency)))
if total_steps % eval_frequency == 0:
top1, top5, dev_loss = eval(model, dev_loader, encoder,
gpu_mode)
model.train()
top1_avg = top1.get_average_results()
top5_avg = top5.get_average_results()
avg_score = top1_avg["verb"] + top1_avg["value"] + top1_avg["value-all"] + top5_avg["verb"] + \
top5_avg["value"] + top5_avg["value-all"] + top5_avg["value*"] + top5_avg["value-all*"]
avg_score /= 8
print('Dev {} average :{:.2f} {} {}'.format(
total_steps - 1, avg_score * 100,
utils.format_dict(top1_avg, '{:.2f}', '1-'),
utils.format_dict(top5_avg, '{:.2f}', '5-')))
dev_loss_list.append(dev_loss)
min_loss = min(dev_loss_list)
if min_loss == dev_loss_list[-1]:
checkpoint_name = os.path.join(
model_dir,
'{}_devloss_{}.h5'.format('baseline',
len(dev_loss_list)))
utils.save_net(checkpoint_name, model)
print('New best model saved! {0}'.format(min_loss))
print('current train loss', train_loss)
train_loss = 0
print('Epoch ', epoch, ' completed!')