def main(argv):
config = Config()
config.phase = FLAGS.phase
config.train_cnn = FLAGS.train_cnn
config.beam_size = FLAGS.beam_size
with tf.Session() as sess:
if FLAGS.phase == 'train':
# training phase
data = prepare_train_data(config)
model = CaptionGenerator(config)
sess.run(tf.global_variables_initializer())
if FLAGS.load:
model.load(sess, FLAGS.model_file)
if FLAGS.load_cnn:
model.load_cnn(sess, FLAGS.cnn_model_file)
tf.get_default_graph().finalize()
model.train(sess, data)
elif FLAGS.phase == 'eval':
# evaluation phase
coco, data, vocabulary = prepare_eval_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.eval(sess, coco, data, vocabulary)
else:
# testing phase
data, vocabulary = prepare_test_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.test(sess, data, vocabulary)
def main(argv):
flags = tf.app.flags
FLAGS = flags.FLAGS
config = Config()
config.phase = FLAGS.phase
config.train_cnn = FLAGS.train_cnn
config.beam_size = FLAGS.beam_size
# Cluster One setting
clusterone_dist_env = distributed_env(config.root_path_to_local_data,
config.path_to_local_logs,
config.cloud_path_to_data,
config.local_repo,
config.cloud_user_repo, flags)
clusterone_dist_env.get_env()
tf.reset_default_graph()
device, target = clusterone_dist_env.device_and_target(
) # getting node environment
# end of setting
# Using tensorflow's MonitoredTrainingSession to take care of checkpoints
with tf.train.MonitoredTrainingSession(
master=target,
is_chief=(FLAGS.task_index == 0),
checkpoint_dir=FLAGS.log_dir) as sess:
# with tf.Session() as sess:
if FLAGS.phase == 'train':
# training phase
data = prepare_train_data(config)
with tf.device(device): # define model
model = CaptionGenerator(config)
sess.run(tf.global_variables_initializer())
if FLAGS.load:
model.load(sess, FLAGS.model_file)
if FLAGS.load_cnn:
model.load_cnn(sess, FLAGS.cnn_model_file)
tf.get_default_graph().finalize()
model.train(sess, data)
elif FLAGS.phase == 'eval':
# evaluation phase
config.batch_size = 1
coco, data, vocabulary = prepare_eval_data(config)
with tf.device(device): # define model
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.eval(sess, coco, data, vocabulary)
else:
# testing phase
data, vocabulary = prepare_test_data(config)
with tf.device(device): # define model
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.test(sess, data, vocabulary)
def main(argv):
config = Config()
config.phase = FLAGS.phase
config.train_cnn = FLAGS.train_cnn
config.beam_size = FLAGS.beam_size
with tf.compat.v1.Session() as sess:
if FLAGS.phase == 'train':
# training phase
config.train_image_dir = config.train_image_dir[:
-1] + "_" + FLAGS.namedir + "/"
data = prepare_train_data(config)
model = CaptionGenerator(config)
sess.run(tf.global_variables_initializer())
if FLAGS.load:
model.load(sess, FLAGS.model_file)
if FLAGS.load_cnn:
model.load_cnn(sess, FLAGS.cnn_model_file)
tf.get_default_graph().finalize()
model.train(sess, data)
elif FLAGS.phase == 'eval':
# evaluation phase
config.eval_image_dir = config.eval_image_dir[:
-1] + "_" + FLAGS.namedir + "/"
config.eval_result_dir = config.eval_result_dir[:
-1] + "_" + FLAGS.namedir + "/"
config.eval_result_file = config.eval_result_file[:
-5] + "_" + FLAGS.namedir + config.eval_result_file[
-5:] # .json
coco, data, vocabulary = prepare_eval_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.eval(sess, coco, data, vocabulary)
else:
# testing phase
config.test_image_dir = config.test_image_dir[:
-1] + "_" + FLAGS.namedir + "/"
config.test_result_dir = config.test_result_dir[:
-1] + "_" + FLAGS.namedir + "/"
config.test_result_file = config.test_result_file[:
-4] + "_" + FLAGS.namedir + config.test_result_file[
-4:] # .csv
data, vocabulary = prepare_test_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.compat.v1.get_default_graph().finalize()
model.test(sess, data, vocabulary)
def main(argv):
config = Config()
config.phase = FLAGS.phase
config.train_cnn = FLAGS.train_cnn
config.beam_size = FLAGS.beam_size
config.trainable_variable = FLAGS.train_cnn
with tf.Session() as sess:
if FLAGS.phase == 'train':
# training phase
data = prepare_train_data(config)
model = CaptionGenerator(config)
sess.run(tf.global_variables_initializer())
if FLAGS.load:
model.load(sess, FLAGS.model_file)
#load the cnn file
if FLAGS.load_cnn:
model.load_cnn(sess, FLAGS.cnn_model_file)
tf.get_default_graph().finalize()
model.train(sess, data)
elif FLAGS.phase == 'eval':
# evaluation phase
coco, data, vocabulary = prepare_eval_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.eval(sess, coco, data, vocabulary)
elif FLAGS.phase == 'test_loaded_cnn':
# testing only cnn
model = CaptionGenerator(config)
sess.run(tf.global_variables_initializer())
imgs = tf.placeholder(tf.float32, [None, 224, 224, 3])
probs = model.test_cnn(imgs)
model.load_cnn(sess, FLAGS.cnn_model_file)
img1 = imread(FLAGS.image_file, mode='RGB')
img1 = imresize(img1, (224, 224))
prob = sess.run(probs, feed_dict={imgs: [img1]})[0]
preds = (np.argsort(prob)[::-1])[0:5]
for p in preds:
print(class_names[p], prob[p])
else:
# testing phase
data, vocabulary = prepare_test_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.test(sess, data, vocabulary)
def main(argv):
os.system("ls /tinysrc")
os.system("python tinysrc/download_flickr8k.py")
config = Config()
config.phase = FLAGS.phase
config.train_cnn = FLAGS.train_cnn
config.joint_train = FLAGS.joint_train
config.beam_size = FLAGS.beam_size
config.attention_mechanism = FLAGS.attention
config.faster_rcnn_frozen = FLAGS.faster_rcnn_frozen
with tf.Session() as sess:
if FLAGS.phase == 'train':
# training phase
data = prepare_train_data(config)
model = CaptionGenerator(config)
sess.run(tf.global_variables_initializer())
if FLAGS.load:
model.load(sess, FLAGS.model_file)
if FLAGS.load_cnn:
model.load_faster_rcnn_feature_extractor(
sess, FLAGS.faster_rcnn_ckpt)
tf.get_default_graph().finalize()
model.train(sess, data)
elif FLAGS.phase == 'eval':
# evaluation phase
coco, data, vocabulary = prepare_eval_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.eval(sess, coco, data, vocabulary)
else:
# testing phase
data, vocabulary = prepare_test_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.test(sess, data, vocabulary)
os.system("rm -rf /output/Flickr8k_Dataset/")
os.system("rm -rf /output/Flickr8k_text/")
def main(argv):
config = Config()
config.phase = FLAGS.phase
config.train_cnn = FLAGS.train_cnn
config.beam_size = FLAGS.beam_size
with tf.Session() as sess:
if FLAGS.phase == 'train':
# training phase
data = prepare_train_data(config)
model = CaptionGenerator(config)
sess.run(tf.global_variables_initializer())
if FLAGS.load:
model.load(sess, FLAGS.model_file)
if FLAGS.load_cnn:
model.load_cnn(sess, FLAGS.cnn_model_file)
tf.get_default_graph().finalize()
model.train(sess, data)
else:
# testing phase
cap = cv2.VideoCapture(0)
#cap = cv2.VideoCapture('./video3.mp4')
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
i = 1
vocabulary = prepare_test_data(config)
while True:
ret, frame = cap.read()
if not ret:
break
if i == 1 or i % 4 == 0:
caption = model.test(sess, frame, vocabulary)
i += 1
word_and_img = np.concatenate((np.zeros(
(50, np.shape(frame)[1], 3), np.uint8), frame),
axis=0)
cv2.putText(word_and_img, caption, (15, 30),
cv2.FONT_HERSHEY_TRIPLEX, 0.5, (18, 87, 220), 1)
cv2.imshow('VideoShow', word_and_img)
cv2.waitKey(5)
def main(argv):
config = Config()
config.phase = FLAGS.phase
config.train_cnn = FLAGS.train_cnn
config.beam_size = FLAGS.beam_size
config2 = tf.ConfigProto()
config2.gpu_options.allow_growth = True
with tf.Session(config=config2) as sess:
if FLAGS.phase == 'train':
# training phase
data = prepare_train_data(config)
model = CaptionGenerator(config)
sess.run(tf.global_variables_initializer())
if FLAGS.load:
model.load(sess, FLAGS.model_file)
if FLAGS.load_cnn:
model.load_cnn(sess, FLAGS.cnn_model_file)
tf.get_default_graph().finalize()
model.train(sess, data)
'''
def main(argv):
config = Config()
config.phase = FLAGS.phase
config.train_cnn = FLAGS.train_cnn
config.beam_size = FLAGS.beam_size
checkpoint_dir = config.checkpoint_dir
save_checkpoint_secs = config.save_checkpoint_secs
save_checkpoint_steps = config.save_checkpoint_steps
global_step = tf.train.get_or_create_global_step()
checkpoint_step = tf.assign_add(global_step, 1)
model = CaptionGenerator(config)
# with tf.Session() as sess:
with tf.train.MonitoredTrainingSession(
checkpoint_dir=checkpoint_dir,
save_checkpoint_steps=save_checkpoint_steps,
) as sess:
if FLAGS.phase == 'train':
# training phase
data = prepare_train_data(config)
# WIP modify load part
# if FLAGS.load:
# model.load(sess, FLAGS.model_file)
# if FLAGS.load_cnn:
# model.load_cnn(sess, FLAGS.cnn_model_file)
model.train(sess, data)
elif FLAGS.phase == 'eval':
# evaluation phase
coco, data, vocabulary = prepare_eval_data(config)
tf.get_default_graph().finalize()
model.eval(sess, coco, data, vocabulary)
else:
# testing phase
data, vocabulary = prepare_test_data(config)
tf.get_default_graph().finalize()
model.test(sess, data, vocabulary)
def main(argv):
config = Config()
config.phase = FLAGS.phase
config.train_cnn = FLAGS.train_cnn
config.beam_size = FLAGS.beam_size
gpu_options = tf.GPUOptions(per_process_gpu_memory_fraction=0.9)
with tf.Session(config=tf.ConfigProto(log_device_placement=False,
gpu_options=gpu_options)) as sess:
if FLAGS.phase == 'train':
# training phase
data = prepare_train_data(config)
model = CaptionGenerator(config)
sess.run(tf.global_variables_initializer())
if FLAGS.load:
model.load(sess, FLAGS.model_file)
if FLAGS.load_cnn:
model.load_cnn(sess, FLAGS.cnn_model_file)
tf.get_default_graph().finalize()
model.train(sess, data)
elif FLAGS.phase == 'eval':
# evaluation phase
coco, data, vocabulary = prepare_eval_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.eval(sess, coco, data, vocabulary)
else:
# testing phase
data, vocabulary = prepare_test_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.test(sess, data, vocabulary)
def main(_):
config = Config()
config.mode = FLAGS.mode
config.train_cnn = FLAGS.train_cnn
config.beam_size = FLAGS.beam_size
tf_config = tf.ConfigProto()
tf_config.gpu_options.allow_growth = True
# 设置按需分配GPU
with tf.Session(config=tf_config) as sess:
if FLAGS.mode == 'train':
# training mode
data = prepare_train_data(config)
model = CaptionGenerator(config)
sess.run(tf.global_variables_initializer())
if FLAGS.load:
model.load(sess, FLAGS.model_file)
if FLAGS.load_cnn:
model.load_cnn(sess, FLAGS.cnn_model_file)
tf.get_default_graph().finalize()
model.train(sess, data)
elif FLAGS.mode == 'eval':
# evaluation mode
coco, data, vocabulary = prepare_eval_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.eval(sess, coco, data, vocabulary)
else:
# testing mode
data, vocabulary = prepare_test_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.test(sess, data, vocabulary)
def main(argv):
start_time = time.time()
config = Config()
config.phase = FLAGS.phase
config.train_cnn = FLAGS.train_cnn
config.beam_size = FLAGS.beam_size
config.distributed = FLAGS.distributed
config.test_image_dir = os.path.join(FLAGS.node_root, 'images')
config.test_result_dir = os.path.join(FLAGS.node_root, 'results')
config.test_result_file = os.path.join(FLAGS.node_root, 'results.cvs')
config.replicas = len(FLAGS.worker_hosts.split(","))
if FLAGS.task_index == '':
config.task_index = 0
else:
config.task_index = int(FLAGS.task_index)
if FLAGS.phase == 'train':
# training phase
if FLAGS.distributed:
config.train_image_dir = FLAGS.input_path
ps_hosts = FLAGS.ps_hosts.split(",")
worker_hosts = FLAGS.worker_hosts.split(",")
# Create a cluster from the parameter server and worker hosts.
cluster = tf.train.ClusterSpec({
"ps": ps_hosts,
"worker": worker_hosts
})
# Create and start a server for the local task.
server = tf.train.Server(cluster,
job_name=FLAGS.job_name,
task_index=config.task_index)
#with tf.device(tf.train.replica_device_setter(cluster=cluster)):
# global_step = tf.Variable(0)
#with tf.device("/job:ps/task:0"):
# global_step = tf.Variable(0, name="global_step")
if FLAGS.job_name == "ps":
server.join()
elif FLAGS.job_name == "worker":
with tf.device(
tf.train.replica_device_setter(
worker_device="/job:worker/task:%d" %
config.task_index,
cluster=cluster)):
model = CaptionGenerator(config)
data = prepare_train_data(config)
init_op = tf.initialize_all_variables()
print "Variables Initialized ..."
begin = time.time()
#The StopAtStepHook handles stopping after running given steps.
hooks = [tf.train.StopAtStepHook(num_steps=1200000)]
# The MonitoredTrainingSession takes care of session initialization,
# restoring from a checkpoint, saving to a checkpoint, and closing when done
# or an error occurs.
with tf.train.MonitoredTrainingSession(
master=server.target,
is_chief=(config.task_index == 0),
checkpoint_dir=
"/home/mauro.emc/image_captioning/models",
hooks=hooks) as mon_sess:
if not os.path.exists(config.summary_dir):
os.mkdir(config.summary_dir)
train_writer = tf.summary.FileWriter(
config.summary_dir, mon_sess.graph)
print "Start the model training"
#while not mon_sess.should_stop():
model.train(mon_sess, data, train_writer,
config.task_index)
train_writer.close()
print "Model stopped train"
print("Train completed")
print("Total Time in secs: " + str(time.time() - begin))
else:
with tf.Session() as sess:
data = prepare_train_data(config)
model = CaptionGenerator(config)
sess.run(tf.global_variables_initializer())
if FLAGS.load:
model.load(sess, FLAGS.model_file)
if FLAGS.load_cnn:
model.load_cnn(sess, FLAGS.cnn_model_file)
tf.get_default_graph().finalize()
model.train(sess, data)
elif FLAGS.phase == 'eval':
with tf.Session() as sess:
# evaluation phase
coco, data, vocabulary = prepare_eval_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.eval(sess, coco, data, vocabulary)
else:
with tf.Session() as sess:
# testing phase
data, vocabulary = prepare_test_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.test(sess, data, vocabulary)
print 'Total time in seconds : ' + str(time.time() - start_time)
def main(argv):
start_time = time.time()
config = Config()
config.phase = FLAGS.phase
config.train_cnn = FLAGS.train_cnn
config.beam_size = FLAGS.beam_size
config.distributed = FLAGS.distributed
config.test_image_dir = os.path.join(FLAGS.node_root, 'images')
config.test_result_dir = os.path.join(FLAGS.node_root, 'results')
config.test_result_file = os.path.join(FLAGS.node_root, 'results.cvs')
config.replicas = len(FLAGS.worker_hosts.split(","))
config.task_index = FLAGS.task_index
if FLAGS.phase == 'train':
# training phase
if FLAGS.distributed:
config.train_image_dir = FLAGS.input_path
print config.train_image_dir
ps_hosts = FLAGS.ps_hosts.split(",")
worker_hosts = FLAGS.worker_hosts.split(",")
# Create a cluster from the parameter server and worker hosts.
cluster = tf.train.ClusterSpec({
"ps": ps_hosts,
"worker": worker_hosts
})
# Create and start a server for the local task.
server = tf.train.Server(cluster,
job_name=FLAGS.job_name,
task_index=FLAGS.task_index)
if FLAGS.job_name == "ps":
server.join()
elif FLAGS.job_name == "worker":
with tf.device(
tf.train.replica_device_setter(
worker_device="/job:worker/task:%d" %
FLAGS.task_index,
cluster=cluster)):
tf.reset_default_graph()
global_step = tf.get_variable(
'global_step', [],
initializer=tf.constant_initializer(0),
trainable=False,
dtype=tf.int32)
data = prepare_train_data(config)
model = CaptionGenerator(config)
init_op = tf.initialize_all_variables()
is_chief = (FLAGS.task_index == 0)
# Create a "supervisor", which oversees the training process.
sv = tf.train.Supervisor(
is_chief=is_chief,
logdir="/home/mauro.emc/image_captioning/tmp/logs",
init_op=init_op,
global_step=global_step,
save_model_secs=600)
with sv.prepare_or_wait_for_session(server.target) as sess:
if is_chief:
sv.start_queue_runners(sess, [chief_queue_runner])
# Insert initial tokens to the queue.
sess.run(init_token_op)
sess.run(tf.global_variables_initializer())
model.train(sess, data)
sv.stop()
else:
with tf.Session() as sess:
data = prepare_train_data(config)
model = CaptionGenerator(config)
sess.run(tf.global_variables_initializer())
if FLAGS.load:
model.load(sess, FLAGS.model_file)
if FLAGS.load_cnn:
model.load_cnn(sess, FLAGS.cnn_model_file)
tf.get_default_graph().finalize()
model.train(sess, data)
elif FLAGS.phase == 'eval':
with tf.Session() as sess:
# evaluation phase
coco, data, vocabulary = prepare_eval_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.eval(sess, coco, data, vocabulary)
else:
with tf.Session() as sess:
# testing phase
data, vocabulary = prepare_test_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.test(sess, data, vocabulary)
print 'Total time in seconds : ' + str(time.time() - start_time)
def main(argv):
config = Config()
config.phase = FLAGS.phase
config.train_cnn = FLAGS.train_cnn
config.beam_size = FLAGS.beam_size
with tf.Session() as sess:
if FLAGS.phase == 'train':
# training phase
data = prepare_train_data(config)
model = CaptionGenerator(config)
sess.run(tf.global_variables_initializer())
if FLAGS.load:
model.load(sess, FLAGS.model_file)
if FLAGS.load_cnn:
model.load_cnn(sess, FLAGS.cnn_model_file)
tf.get_default_graph().finalize()
model.train(sess, data)
elif FLAGS.phase == 'eval':
# evaluation phase
coco, data, vocabulary = prepare_eval_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.eval(sess, coco, data, vocabulary)
elif FLAGS.phase == 'test_new_data':
# evaluation phase
coco, data, vocabulary = prepare_eval_new_data(
config.eval_caption_file_unsplash, config.eval_image_unsplash,
config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.eval_new_data(sess, coco, data, vocabulary,
config.eval_result_dir_unsplash,
config.eval_result_file_unsplash)
elif FLAGS.phase == 'test_new_data_vizwiz':
# evaluation phase
coco, data, vocabulary = prepare_eval_new_data(
config.eval_caption_file_vizwiz_train,
config.eval_image_vizwiz_train, config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.eval_new_data(sess, coco, data, vocabulary,
config.eval_result_dir_vizwiz_train,
config.eval_result_file_vizwiz_train)
elif FLAGS.phase == 'test_new_data_insta':
# evaluation phase
coco, data, vocabulary = prepare_eval_new_data(
config.eval_caption_file_insta, config.eval_image_insta,
config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.eval_new_data(sess, coco, data, vocabulary,
config.eval_result_dir_insta,
config.eval_result_file_insta)
elif FLAGS.phase == 'test_new_data_google_top_n':
# evaluation phase
coco, data, vocabulary = prepare_eval_new_data(
config.eval_caption_file_topN, config.eval_image_topN, config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.eval_new_data(sess, coco, data, vocabulary,
config.eval_result_dir_topN,
config.eval_result_file_topN)
else:
# testing phase
data, vocabulary = prepare_test_data(config)
model = CaptionGenerator(config)
model.load(sess, FLAGS.model_file)
tf.get_default_graph().finalize()
model.test(sess, data, vocabulary)
import tensorflow as tf from model import CaptionGenerator net = CaptionGenerator() sess = tf.Session() net.train(sess, )
def main(num_epochs=10, embedding_dim=256, data_dir="data/"):
""" Function to train the model.
Args:
num_epochs: int
Number of full dataset iterations to train the model.
embedding_dim: int
Output of the CNN model and input of the LSTM embedding size.
data_dir: str
Path to the folder of the data.
"""
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
print(f"WORKING WITH: {device}")
# Define the paths for train and validation
train_json_path = data_dir + "annotations/captions_train2014.json"
train_root_dir = data_dir + "train2014"
valid_json_path = data_dir + "annotations/captions_val2014.json"
valid_root_dir = data_dir + "val2014"
transform = transforms.Compose([
transforms.RandomResizedCrop(224),
transforms.RandomHorizontalFlip(),
transforms.ToTensor(),
transforms.Normalize([0.485, 0.456, 0.406], [0.229, 0.224, 0.225])
])
train_dataset = CocoDataset(json_path=train_json_path,
root_dir=train_root_dir,
transform=transform)
train_coco_dataset = get_data_loader(train_dataset, batch_size=128)
valid_dataset = CocoDataset(json_path=valid_json_path,
root_dir=valid_root_dir,
transform=transform)
valid_coco_dataset = get_data_loader(valid_dataset, batch_size=1)
encoder = FeatureExtractor(embedding_dim).to(device)
decoder = CaptionGenerator(embedding_dim, 512,
len(train_dataset.vocabulary), 1).to(device)
criterion = nn.CrossEntropyLoss()
# params = list(decoder.parameters()) + list(encoder.linear.parameters()) + list(encoder.bn.parameters())
params = list(decoder.parameters()) + list(
encoder.linear.parameters()) + list(encoder.bn.parameters())
optimizer = optim.Adam(params, lr=0.01)
print(f"TRAIN DATASET: {len(train_coco_dataset)}")
print(f"VALID DATASET: {len(valid_coco_dataset)}")
total_step = len(train_coco_dataset)
for epoch in range(num_epochs):
encoder.train()
decoder.train()
train_loss = 0.0
valid_loss = 0.0
for i, (images, captions,
descriptions) in enumerate(train_coco_dataset):
# targets = pack_padded_sequence(caption, 0, batch_first=True)[0]
images = images.to(device)
captions = captions.to(device)
# targets = pack_padded_sequence(captions, lengths, batch_first=True)[0]
features = encoder(images)
outputs = decoder(features, captions)
loss = criterion(outputs.view(-1, len(train_dataset.vocabulary)),
captions.view(-1))
# bleu = calculate_bleu(decoder, features, descriptions, coco_dataset)
# print(bleu)
encoder.zero_grad()
decoder.zero_grad()
loss.backward()
optimizer.step()
# Print log info
train_loss += loss.item()
'''
if i % 10 == 0:
print('Epoch [{}/{}], Step [{}/{}], Loss: {:.4f}, Perplexity: {:5.4f}'
.format(epoch, num_epochs, i, total_step, loss.item(), np.exp(loss.item())))
'''
# Save the model checkpoints
if (i + 1) % 1000 == 0:
torch.save(
decoder.state_dict(),
os.path.join("models",
'decoder-{}-{}.ckpt'.format(epoch + 1,
i + 1)))
torch.save(
encoder.state_dict(),
os.path.join("models",
'encoder-{}-{}.ckpt'.format(epoch + 1,
i + 1)))
encoder.eval()
decoder.eval()
bleu = 0.0
for i, (images, captions,
descriptions) in enumerate(valid_coco_dataset):
if (i > 80000):
break
images = images.to(device)
captions = captions.to(device)
features = encoder(images)
outputs = decoder(features, captions)
loss = criterion(outputs.view(-1, len(train_dataset.vocabulary)),
captions.view(-1))
valid_loss += loss.item()
bleu += calculate_bleu(decoder, features, descriptions,
train_coco_dataset)
# print(f"BLEU: {bleu / 10000}")
print(
"Epoch: {}, Train Loss: {:.4f}, Valid Loss: {:.4f}, BLEU: {:.4f}".
format(epoch, train_loss / len(train_coco_dataset),
valid_loss / 80000, bleu / 80000))