logging.info("Create train_loader and val_loader.........")

train_loader_kwargs = {

'question_type': cfg.dataset.question_type,

'question_pt': cfg.dataset.train_question_pt,

'question_subject_pt': cfg.dataset.train_question_subject_pt,

'question_relation_pt': cfg.dataset.train_question_relation_pt,

'question_object_pt': cfg.dataset.train_question_object_pt,

'vocab_json': cfg.dataset.vocab_json,

'vocab_subject_json': cfg.dataset.vocab_subject_json,

'vocab_relation_json': cfg.dataset.vocab_relation_json,

'vocab_object_json': cfg.dataset.vocab_object_json,

'appearance_feat': cfg.dataset.appearance_feat,

'motion_feat': cfg.dataset.motion_feat,

'appearance_dict': cfg.dataset.appearance_dict,

'motion_dict': cfg.dataset.motion_dict,

'train_num': cfg.train.train_num,

'batch_size': cfg.train.batch_size,

'num_workers': cfg.num_workers,

'shuffle': True

}

train_loader = VideoQADataLoader_oie_bert_opendended(**train_loader_kwargs)

logging.info("number of train instances: {}".format(len(train_loader.dataset)))

if cfg.val.flag:

val_loader_kwargs = {

'question_type': cfg.dataset.question_type,

'question_pt': cfg.dataset.val_question_pt,

'question_subject_pt': cfg.dataset.val_question_subject_pt,

'question_relation_pt': cfg.dataset.val_question_relation_pt,

'question_object_pt': cfg.dataset.val_question_object_pt,

'vocab_json': cfg.dataset.vocab_json,

'vocab_subject_json': cfg.dataset.vocab_subject_json,

'vocab_relation_json': cfg.dataset.vocab_relation_json,

'vocab_object_json': cfg.dataset.vocab_object_json,

'appearance_feat': cfg.dataset.appearance_feat,

'motion_feat': cfg.dataset.motion_feat,

'appearance_dict': cfg.dataset.appearance_dict,

'motion_dict': cfg.dataset.motion_dict,

'val_num': cfg.val.val_num,

'batch_size': cfg.train.batch_size,

'num_workers': cfg.num_workers,

'shuffle': False

}

val_loader = VideoQADataLoader_oie_bert_opendended(**val_loader_kwargs)

logging.info("number of val instances: {}".format(len(val_loader.dataset)))

logging.info("Create model.........")

device = 'cuda' if torch.cuda.is_available() else 'cpu'

model_kwargs = {

'motion_dim': cfg.train.motion_dim,

'appearance_dim': cfg.train.appearance_dim,

'module_dim': cfg.train.module_dim,

'word_dim': cfg.train.word_dim,

# 'k_max_frame_level': cfg.train.k_max_frame_level,

# 'k_max_clip_level': cfg.train.k_max_clip_level,

# 'spl_resolution': cfg.train.spl_resolution,

'vocab': train_loader.vocab,

'vocab_subject': train_loader.vocab_subject,

'vocab_relation': train_loader.vocab_relation,

'vocab_object': train_loader.vocab_object,

'question_type': cfg.dataset.question_type

}

model_kwargs_tosave = {k: v for k, v in model_kwargs.items() if k != 'vocab' or k != 'vocab_subject' or k != 'vocab_relation' or k != 'vocab_object'}

model = VLCIR.VLCIR(**model_kwargs).to(device)

pytorch_total_params = sum(p.numel() for p in model.parameters() if p.requires_grad)

logging.info('num of params: {}'.format(pytorch_total_params))

logging.info(model)

if cfg.train.glove:

logging.info('load glove vectors')

train_loader.glove_matrix = torch.FloatTensor(train_loader.glove_matrix).to(device)

train_loader.glove_matrix_subject = torch.FloatTensor(train_loader.glove_matrix_subject).to(device)

train_loader.glove_matrix_relation = torch.FloatTensor(train_loader.glove_matrix_relation).to(device)

train_loader.glove_matrix_object = torch.FloatTensor(train_loader.glove_matrix_object).to(device)

with torch.no_grad():

model.linguistic_input_unit.encoder_embed.weight.set_(train_loader.glove_matrix)

model.linguistic_subject_input_unit.encoder_embed.weight.set_(train_loader.glove_matrix_subject)

model.linguistic_relation_input_unit.encoder_embed.weight.set_(train_loader.glove_matrix_relation)

model.linguistic_object_input_unit.encoder_embed.weight.set_(train_loader.glove_matrix_object)

model.linguistic_input_unit_do.encoder_embed.weight.set_(train_loader.glove_matrix)

model.linguistic_subject_input_unit_do.encoder_embed.weight.set_(train_loader.glove_matrix_subject)

model.linguistic_relation_input_unit_do.encoder_embed.weight.set_(train_loader.glove_matrix_relation)

model.linguistic_object_input_unit_do.encoder_embed.weight.set_(train_loader.glove_matrix_object)

if torch.cuda.device_count() > 1 and cfg.multi_gpus:

model = model.cuda()

logging.info("Using {} GPUs".format(torch.cuda.device_count()))

model = nn.DataParallel(model, device_ids=[0])

optimizer = optim.Adam(model.parameters(), cfg.train.lr, betas=(0.9, 0.999), eps=1e-08, weight_decay=0.0, amsgrad=False)

if cfg.dataset.question_type in ['none', 'frameqa']:

criterion = nn.CrossEntropyLoss().cuda()

scheduler = optim.lr_scheduler.ReduceLROnPlateau(optimizer,mode='max',patience=5,factor=0.5,verbose=True)

elif cfg.dataset.question_type in ['count']:

criterion = nn.MSELoss().cuda()

scheduler = optim.lr_scheduler.ReduceLROnPlateau(optimizer,mode='min',patience=5,factor=0.5,verbose=True)

else:

scheduler = optim.lr_scheduler.ReduceLROnPlateau(optimizer,mode='max',patience=5,factor=0.5,verbose=True)

start_epoch = 0

if cfg.dataset.name == 'msvd-qa' or cfg.dataset.name == 'msrvtt-qa':

best_val = 0.

best_what = 0.

best_how = 0.

best_when = 0.

best_who = 0.

best_where = 0.

if cfg.dataset.question_type == 'count':

best_val = 100.0

else:

best_val = 0

if cfg.train.restore:

print("Restore checkpoint and optimizer...")

ckpt = os.path.join(cfg.dataset.save_dir, 'ckpt', 'model.pt')

ckpt = torch.load(ckpt, map_location=lambda storage, loc: storage)

start_epoch = ckpt['epoch'] + 1

model.load_state_dict(ckpt['state_dict'])

optimizer.load_state_dict(ckpt['optimizer'])

if cfg.dataset.question_type in ['frameqa', 'none']:

criterion = nn.CrossEntropyLoss().to(device)

elif cfg.dataset.question_type == 'count':

criterion = nn.MSELoss().to(device)

logging.info("Start training........")

for epoch in range(start_epoch, cfg.train.max_epochs):

logging.info('>>>>>> epoch {epoch} <<<<<<'.format(epoch=colored("{}".format(epoch), "green", attrs=["bold"])))

model.train()

total_acc, count = 0, 0

batch_mse_sum = 0.0

total_loss, avg_loss = 0.0, 0.0

avg_loss = 0

train_accuracy = 0

for i, batch in enumerate(iter(train_loader)):

progress = epoch + i / len(train_loader)

_, _, answers, *batch_input = [todevice(x, device) for x in batch]

answers = answers.cuda().squeeze()

batch_size = answers.size(0)

optimizer.zero_grad()

logits = model(*batch_input)

if cfg.dataset.question_type in ['action', 'transition']:

batch_agg = np.concatenate(np.tile(np.arange(batch_size).reshape([batch_size, 1]),

[1, 5])) * 5 # [0, 0, 0, 0, 0, 5, 5, 5, 5, 1, ...]

answers_agg = tile(answers, 0, 5)

loss = torch.max(torch.tensor(0.0).cuda(),

1.0 + logits - logits[answers_agg + torch.from_numpy(batch_agg).cuda()])

loss = loss.sum()

loss.backward()

total_loss += loss.detach()

avg_loss = total_loss / (i + 1)

nn.utils.clip_grad_norm_(model.parameters(), max_norm=12)

optimizer.step()

preds = torch.argmax(logits.view(batch_size, 5), dim=1)

aggreeings = (preds == answers)

elif cfg.dataset.question_type == 'count':

answers = answers.unsqueeze(-1)

loss = criterion(logits, answers.float())

loss.backward()

total_loss += loss.detach()

avg_loss = total_loss / (i + 1)

nn.utils.clip_grad_norm_(model.parameters(), max_norm=12)

optimizer.step()

preds = (logits + 0.5).long().clamp(min=1, max=10)

batch_mse = (preds - answers) ** 2

else:

loss = criterion(logits, answers)

loss.backward()

total_loss += loss.detach()

avg_loss = total_loss / (i + 1)

nn.utils.clip_grad_norm_(model.parameters(), max_norm=12)

optimizer.step()

aggreeings = batch_accuracy(logits, answers)

if cfg.dataset.question_type == 'count':

batch_avg_mse = batch_mse.sum().item() / answers.size(0)

batch_mse_sum += batch_mse.sum().item()

count += answers.size(0)

avg_mse = batch_mse_sum / count

sys.stdout.write(

"\rProgress = {progress} ce_loss = {ce_loss} avg_loss = {avg_loss} train_mse = {train_mse} avg_mse = {avg_mse}".format(

progress=colored("{:.3f}".format(progress), "green", attrs=['bold']),

ce_loss=colored("{:.4f}".format(loss.item()), "blue", attrs=['bold']),

avg_loss=colored("{:.4f}".format(avg_loss), "red", attrs=['bold']),

train_mse=colored("{:.4f}".format(batch_avg_mse), "blue",

attrs=['bold']),

avg_mse=colored("{:.4f}".format(avg_mse), "red", attrs=['bold'])))

sys.stdout.flush()

else:

total_acc += aggreeings.sum().item()

count += answers.size(0)

train_accuracy = total_acc / count

sys.stdout.write(

"\rProgress = {progress} ce_loss = {ce_loss} avg_loss = {avg_loss} train_acc = {train_acc} avg_acc = {avg_acc}".format(

progress=colored("{:.3f}".format(progress), "green", attrs=['bold']),

ce_loss=colored("{:.4f}".format(loss.item()), "blue", attrs=['bold']),

avg_loss=colored("{:.4f}".format(avg_loss), "red", attrs=['bold']),

train_acc=colored("{:.4f}".format(aggreeings.float().mean().cpu().numpy()), "blue",

attrs=['bold']),

avg_acc=colored("{:.4f}".format(train_accuracy), "red", attrs=['bold'])))

sys.stdout.flush()

sys.stdout.write("\n")

# if cfg.dataset.question_type == 'count':

# if (epoch + 1) % 5 == 0:

# optimizer = step_decay(cfg, optimizer)

# else:

# if (epoch + 1) % 10 == 0:

# optimizer = step_decay(cfg, optimizer)

sys.stdout.flush()

logging.info("Epoch = %s avg_loss = %.3f avg_acc = %.3f" % (epoch, avg_loss, train_accuracy))

if cfg.val.flag:

output_dir = os.path.join(cfg.dataset.save_dir, 'preds')

if not os.path.exists(output_dir):

os.makedirs(output_dir)

else:

assert os.path.isdir(output_dir)

valid_acc, *valid_output= validate(cfg, model, val_loader, device, write_preds=True)

scheduler.step(valid_acc)

if (valid_acc > best_val):

best_val = valid_acc

best_what = valid_output[0]

best_who = valid_output[1]

best_when = valid_output[3]

best_how = valid_output[2]

best_where = valid_output[4]

# Save best model

ckpt_dir = os.path.join(cfg.dataset.save_dir, 'ckpt')

if not os.path.exists(ckpt_dir):

os.makedirs(ckpt_dir)

else:

assert os.path.isdir(ckpt_dir)

save_checkpoint(epoch, model, optimizer, model_kwargs_tosave, os.path.join(ckpt_dir, lctime+'_model.pt'))

sys.stdout.write('\n >>>>>> save to %s <<<<<< \n' % (ckpt_dir))

sys.stdout.flush()

logging.info('~~~~~~ Valid Accuracy: %.4f ~~~~~~~' % valid_acc)

logging.info('~~~~~~ Valid What Accuracy: %.4f ~~~~~~~' % valid_output[4])

logging.info('~~~~~~ Valid Who Accuracy: %.4f ~~~~~~' % valid_output[5])

logging.info('~~~~~~ Valid How Accuracy: %.4f ~~~~~~' % valid_output[6])

logging.info('~~~~~~ Valid When Accuracy: %.4f ~~~~~~' % valid_output[7])

logging.info('~~~~~~ Valid Where Accuracy: %.4f ~~~~~~' % valid_output[8])

sys.stdout.write('~~~~~~ Valid Accuracy: {valid_acc}, What Accuracy: {what_acc}, Who Accuracy: {who_acc}, How Accuracy: {how_acc}, When Accuracy: {when_acc}, Where Accuracy: {where_acc} ~~~~~~~\n'.format(

valid_acc=colored("{:.4f}".format(valid_acc), "red", attrs=['bold']),

what_acc=colored("{:.4f}".format(valid_output[4]), "red", attrs=['bold']),

who_acc=colored('{:.4f}'.format(valid_output[5]), "red", attrs=['bold']),

how_acc=colored('{:.4f}'.format(valid_output[6]), "red", attrs=['bold']),

when_acc=colored('{:.4f}'.format(valid_output[7]), "red", attrs=['bold']),

where_acc=colored('{:.4f}'.format(valid_output[8]), "red", attrs=['bold'])

))

init_dim = a.size(dim)

repeat_idx = [1] * a.dim()

repeat_idx[dim] = n_tile

a = a.repeat(*(repeat_idx))

order_index = torch.LongTensor(np.concatenate([init_dim * np.arange(n_tile) + i for i in range(init_dim)])).cuda()

# compute the new learning rate based on decay rate

cfg.train.lr *= 0.5

logging.info("Reduced learning rate to {}".format(cfg.train.lr))

sys.stdout.flush()

for param_group in optimizer.param_groups:

param_group['lr'] = cfg.train.lr

""" Compute the accuracies for a batch of predictions and answers """

predicted = predicted.detach().argmax(1)

agreeing = (predicted == true)

state = {

'epoch': epoch,

'state_dict': model.state_dict(),

'optimizer': optimizer.state_dict(),

'model_kwargs': model_kwargs,

}

time.sleep(10)

torch.backends.cudnn.benchmark = True

parser = argparse.ArgumentParser()

parser.add_argument('--cfg', dest='cfg_file', help='optional config file', default='configs/msrvtt_qa_swin.yml', type=str)

args = parser.parse_args()

cfg.dataset.name='tgif-qa'

if args.cfg_file is not None:

cfg_from_file(args.cfg_file)

assert cfg.dataset.name in ['sutd-qa','tgif-qa', 'msrvtt-qa', 'msvd-qa']

assert cfg.dataset.question_type in ['frameqa', 'count', 'transition', 'action', 'none']

# check if the data folder exists

assert os.path.exists(cfg.dataset.data_dir)

# check if k_max is set correctly

# assert cfg.train.k_max_frame_level <= 16

# assert cfg.train.k_max_clip_level <= 8

if not cfg.multi_gpus:

torch.cuda.set_device(cfg.gpu_id)

# make logging.info display into both shell and file

cfg.dataset.save_dir = os.path.join(cfg.dataset.save_dir, cfg.exp_name)

if not os.path.exists(cfg.dataset.save_dir):

os.makedirs(cfg.dataset.save_dir)

else:

assert os.path.isdir(cfg.dataset.save_dir)

log_file = os.path.join(cfg.dataset.save_dir, "log")

if not cfg.train.restore and not os.path.exists(log_file):

os.mkdir(log_file)

else:

assert os.path.isdir(log_file)

fileHandler = logging.FileHandler(os.path.join(log_file, 'stdout.log'), 'w+')

fileHandler.setFormatter(logFormatter)

rootLogger.addHandler(fileHandler)

# args display

for k, v in vars(cfg).items():

logging.info(k + ':' + str(v))

# concat absolute path of input files

if cfg.dataset.name == 'tgif-qa':

cfg.dataset.vocab_json = '{}_{}_vocabv2.json'

cfg.dataset.vocab_subject_json = '{}_{}_vocab_subjectv2.json'

cfg.dataset.vocab_relation_json = '{}_{}_vocab_relationv2.json'

cfg.dataset.vocab_object_json = '{}_{}_vocab_objectv2.json'

cfg.dataset.train_question_pt = '{}_{}_train_questionsv2.pt'

cfg.dataset.train_question_subject_pt = '{}_{}_train_questions_subjectv2.pt'

cfg.dataset.train_question_relation_pt = '{}_{}_train_questions_relationv2.pt'

cfg.dataset.train_question_object_pt = '{}_{}_train_questions_objectv2.pt'

cfg.dataset.val_question_pt = '{}_{}_test_questionsv2.pt'

cfg.dataset.val_question_subject_pt = '{}_{}_test_questions_subjectv2.pt'

cfg.dataset.val_question_relation_pt = '{}_{}_test_questions_relationv2.pt'

cfg.dataset.val_question_object_pt = '{}_{}_test_questions_objectv2.pt'

cfg.dataset.train_question_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.train_question_pt.format(cfg.dataset.name, cfg.dataset.question_type))

cfg.dataset.train_question_subject_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.train_question_subject_pt.format(cfg.dataset.name, cfg.dataset.question_type))

cfg.dataset.train_question_relation_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.train_question_relation_pt.format(cfg.dataset.name, cfg.dataset.question_type))

cfg.dataset.train_question_object_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.train_question_object_pt.format(cfg.dataset.name, cfg.dataset.question_type))

cfg.dataset.val_question_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.val_question_pt.format(cfg.dataset.name, cfg.dataset.question_type))

cfg.dataset.val_question_subject_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.val_question_subject_pt.format(cfg.dataset.name, cfg.dataset.question_type))

cfg.dataset.val_question_relation_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.val_question_relation_pt.format(cfg.dataset.name, cfg.dataset.question_type))

cfg.dataset.val_question_object_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.val_question_object_pt.format(cfg.dataset.name, cfg.dataset.question_type))

cfg.dataset.vocab_json = os.path.join(cfg.dataset.data_dir, cfg.dataset.vocab_json.format(cfg.dataset.name, cfg.dataset.question_type))

cfg.dataset.vocab_subject_json = os.path.join(cfg.dataset.data_dir, cfg.dataset.vocab_subject_json.format(cfg.dataset.name, cfg.dataset.question_type))

cfg.dataset.vocab_relation_json = os.path.join(cfg.dataset.data_dir, cfg.dataset.vocab_relation_json.format(cfg.dataset.name, cfg.dataset.question_type))

cfg.dataset.vocab_object_json = os.path.join(cfg.dataset.data_dir, cfg.dataset.vocab_object_json.format(cfg.dataset.name, cfg.dataset.question_type))

cfg.dataset.appearance_feat = os.path.join(cfg.dataset.data_dir, cfg.dataset.appearance_feat.format(cfg.dataset.name, cfg.dataset.question_type))

cfg.dataset.motion_feat = os.path.join(cfg.dataset.data_dir, cfg.dataset.motion_feat.format(cfg.dataset.name, cfg.dataset.question_type))

cfg.dataset.appearance_dict = os.path.join(cfg.dataset.data_dir, cfg.dataset.appearance_dict.format(cfg.dataset.name))

cfg.dataset.motion_dict = os.path.join(cfg.dataset.data_dir, cfg.dataset.motion_dict.format(cfg.dataset.name))

else:

cfg.dataset.question_type = 'none'

# cfg.dataset.appearance_feat = '{}_appearance_feat_swin_large.h5'

# cfg.dataset.motion_feat = '{}_motion_feat_swin_large.h5'

# cfg.dataset.appearance_dict = '{}_appearance_feat_swin_large_dict.h5'

# cfg.dataset.motion_dict = '{}_motion_feat_swin_large_dict.h5'

cfg.dataset.vocab_json = '{}_vocab_keybert2.json'

cfg.dataset.vocab_subject_json = '{}_vocab_subject_keybert2.json'

cfg.dataset.vocab_relation_json = '{}_vocab_relation_keybert2.json'

cfg.dataset.vocab_object_json = '{}_vocab_object_keybert2.json'

cfg.dataset.train_question_pt = '{}_train_question_keybert2.pt'

cfg.dataset.train_question_subject_pt = '{}_train_questions_subject_keybert2.pt'

cfg.dataset.train_question_relation_pt = '{}_train_questions_relation_keybert2.pt'

cfg.dataset.train_question_object_pt = '{}_train_questions_object_keybert2.pt'

cfg.dataset.val_question_pt = '{}_test_question_keybert2.pt'

cfg.dataset.val_question_subject_pt = '{}_test_questions_subject_keybert2.pt'

cfg.dataset.val_question_relation_pt = '{}_test_questions_relation_keybert2.pt'

cfg.dataset.val_question_object_pt = '{}_test_questions_object_keybert2.pt'

cfg.dataset.train_question_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.train_question_pt.format(cfg.dataset.name))

cfg.dataset.train_question_subject_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.train_question_subject_pt.format(cfg.dataset.name))

cfg.dataset.train_question_relation_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.train_question_relation_pt.format(cfg.dataset.name))

cfg.dataset.train_question_object_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.train_question_object_pt.format(cfg.dataset.name))

cfg.dataset.val_question_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.val_question_pt.format(cfg.dataset.name))

cfg.dataset.val_question_subject_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.val_question_subject_pt.format(cfg.dataset.name))

cfg.dataset.val_question_relation_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.val_question_relation_pt.format(cfg.dataset.name))

cfg.dataset.val_question_object_pt = os.path.join(cfg.dataset.data_dir,

cfg.dataset.val_question_object_pt.format(cfg.dataset.name))

cfg.dataset.vocab_json = os.path.join(cfg.dataset.data_dir, cfg.dataset.vocab_json.format(cfg.dataset.name))

cfg.dataset.vocab_subject_json = os.path.join(cfg.dataset.data_dir, cfg.dataset.vocab_subject_json.format(cfg.dataset.name))

cfg.dataset.vocab_relation_json = os.path.join(cfg.dataset.data_dir, cfg.dataset.vocab_relation_json.format(cfg.dataset.name))

cfg.dataset.vocab_object_json = os.path.join(cfg.dataset.data_dir, cfg.dataset.vocab_object_json.format(cfg.dataset.name))

cfg.dataset.appearance_feat = os.path.join(cfg.dataset.data_dir, cfg.dataset.appearance_feat.format(cfg.dataset.name))

cfg.dataset.motion_feat = os.path.join(cfg.dataset.data_dir, cfg.dataset.motion_feat.format(cfg.dataset.name))

cfg.dataset.appearance_dict = os.path.join(cfg.dataset.data_dir, cfg.dataset.appearance_dict.format(cfg.dataset.name))

cfg.dataset.motion_dict = os.path.join(cfg.dataset.data_dir, cfg.dataset.motion_dict.format(cfg.dataset.name))

# set random seed

torch.manual_seed(cfg.seed)

np.random.seed(cfg.seed)

if torch.cuda.is_available():

torch.cuda.manual_seed_all(cfg.seed)