def DownloadImage(key_url):
out_dir = sys.argv[2]
(key, url) = key_url
if isinstance(key, tuple):
filename = os.path.join(out_dir, str(key[1]), '%s.jpg' % key[0])
else:
filename = os.path.join(out_dir, 'test', '%s.jpg' % key)
if os.path.exists(filename):
print('Image %s already exists. Skipping download.' % filename)
return
else:
try_makedirs(os.path.dirname(filename))
try:
# print('Trying to get %s.' % url)
http = urllib3.PoolManager()
response = http.request('GET', url, timeout=10)
image_data = response.data
except:
print('Warning: Could not download image %s from %s' %
(os.path.basename(filename), url))
return
try:
pil_image = Image.open(BytesIO(image_data))
except:
print('Warning: Failed to parse image %s %s' %
(os.path.basename(filename), url))
return
try:
pil_image_rgb = pil_image.convert('RGB')
except:
print('Warning: Failed to convert image %s to RGB' %
os.path.basename(filename))
return
try:
pil_image_rgb.save(filename, format='JPEG', quality=90)
except:
print('Warning: Failed to save image %s' % filename)
return
def train_one_dataset(params, file_name, train_q_data, train_qa_data, train_pid, valid_q_data,\
valid_qa_data, valid_pid, test_q_data, test_qa_data, test_pid):
# ================================== model initialization ==================================
model = load_model(params)
optimizer = torch.optim.Adam(model.parameters(),
lr=params.lr,
betas=(0.9, 0.999),
eps=1e-8)
print("\n")
# total_params = sum(p.numel() for p in model.parameters())
# print(f'{total_params:,} total parameters.')
# total_trainable_params = sum(
# p.numel() for p in model.parameters() if p.requires_grad)
# print(f'{total_trainable_params:,} training parameters.')
# ================================== start training ==================================
all_train_loss = {}
all_train_accuracy = {}
all_train_auc = {}
all_valid_loss = {}
all_valid_accuracy = {}
all_valid_auc = {}
all_test_loss = {}
all_test_accuracy = {}
all_test_auc = {}
best_valid_auc = 0
cur_train_auc = 0
cur_test_auc = 0
for idx in range(params.max_iter):
# Train Model
train_loss, train_accuracy, train_auc = train(model,
params,
optimizer,
train_q_data,
train_qa_data,
train_pid,
label='Train')
# Validation step
valid_loss, valid_accuracy, valid_auc = test(model,
params,
optimizer,
valid_q_data,
valid_qa_data,
valid_pid,
label='Valid')
# Test step
test_loss, test_accuracy, test_auc = test(model,
params,
optimizer,
test_q_data,
test_qa_data,
test_pid,
label='Test')
print('epoch', idx + 1)
print("\ttrain_auc\t", train_auc, "valid_auc\t", valid_auc,
"\ttest_auc\t", test_auc)
print("\ttrain_accuracy\t", train_accuracy, "valid_accuracy\t", valid_accuracy,\
"\ttest_accuracy\t", test_accuracy)
print("\ttrain_loss\t", train_loss, "valid_loss\t", valid_loss,
"test_loss\t", test_loss)
try_makedirs('model')
try_makedirs(os.path.join('model', params.model))
try_makedirs(os.path.join('model', params.model, params.save))
# all_valid_auc[idx + 1] = valid_auc
# all_train_auc[idx + 1] = train_auc
# all_test_auc[idx + 1] = test_auc
# all_valid_loss[idx + 1] = valid_loss
# all_train_loss[idx + 1] = train_loss
# all_test_loss[idx + 1] = test_loss
# all_valid_accuracy[idx + 1] = valid_accuracy
# all_train_accuracy[idx + 1] = train_accuracy
# all_test_accuracy[idx + 1] = test_accuracy
# output the epoch with the best validation auc
if valid_auc > best_valid_auc:
path = os.path.join('model', params.model, params.save,
file_name) + '_*'
for i in glob.glob(path):
os.remove(i)
print(best_valid_auc, ' to ', valid_auc)
best_valid_auc = valid_auc
cur_train_auc = train_auc
cur_test_auc = test_auc
best_epoch = idx + 1
torch.save(
{
'epoch': idx,
'model_state_dict': model.state_dict(),
'optimizer_state_dict': optimizer.state_dict(),
'loss': train_loss,
},
os.path.join('model', params.model, params.save, file_name) +
'_' + str(idx + 1))
if idx - best_epoch > 40:
break
print("cur_train_auc\t", cur_train_auc, "best_valid_auc\t", best_valid_auc, "\n", "cur_test_auc\t",\
cur_test_auc)
try_makedirs('result')
try_makedirs(os.path.join('result', params.model))
try_makedirs(os.path.join('result', params.model, params.save))
f_save_log = open(
os.path.join('result', params.model, params.save, file_name), 'w')
f_save_log.write("valid_auc:\n" + str(all_valid_auc) + "\n\n")
f_save_log.write("train_auc:\n" + str(all_train_auc) + "\n\n")
f_save_log.write("test_auc:\n" + str(all_test_auc) + "\n\n")
f_save_log.write("valid_loss:\n" + str(all_valid_loss) + "\n\n")
f_save_log.write("train_loss:\n" + str(all_train_loss) + "\n\n")
f_save_log.write("test_loss:\n" + str(all_test_loss) + "\n\n")
f_save_log.write("valid_accuracy:\n" + str(all_valid_accuracy) + "\n\n")
f_save_log.write("train_accuracy:\n" + str(all_train_accuracy) + "\n\n")
f_save_log.write("test_accuracy:\n" + str(all_test_accuracy) + "\n\n")
f_save_log.close()
return best_epoch
def main():
"""Main function"""
logger = get_logger(path.splitext(path.basename(__file__))[0] + '.log')
logger.info('Greetings from ' + path.basename(__file__))
validation_ratio = 6
db_data_path = path.join(CWD, 'input')
train_db_path = path.join(db_data_path, 'train_lmdb')
validation_db_path = path.join(db_data_path, 'validation_lmdb')
try_makedirs(db_data_path)
if path.exists(train_db_path):
logger.info('Removing ' + train_db_path)
rmtree(train_db_path)
if path.exists(validation_db_path):
logger.info('Removing ' + validation_db_path)
rmtree(validation_db_path)
all_data_info = pd.read_csv(path.join(DATA_PATH, 'all_data_info.csv'))
# Creating label, genre data frame
# genres = pd.DataFrame({'genre': all_data_info['genre'].dropna().unique()})
genres = pd.DataFrame(columns=['label', 'genre', 'amount'])
genre_label = get_genre_labels()
for i, data in enumerate(genre_label):
amount = all_data_info[all_data_info['genre'].isin(data['addition'])]
genres.loc[i] = [data['label'], data['genre'], len(amount)]
genres.to_csv(path.join(DATA_PATH, 'genre_labels.csv'), index=False)
logger.info('Creating train_db_path and validation_db_path')
train_images = [img for img in glob(path.join(DATA_PATH, 'train', '*.jpg'))]
shuffle(train_images)
null_genre = 0
null_label = 0
generated_imgs = 0
genre_label = get_genre_labels(True)
train_db = lmdb.open(train_db_path, map_size=int(1e12))
validation_db = lmdb.open(validation_db_path, map_size=int(1e12))
with train_db.begin(write=True) as train_tnx, validation_db.begin(
write=True) as validation_tnx:
for in_idx, img_path in enumerate(train_images):
# getting painting genre
genre = all_data_info[all_data_info['new_filename'] ==
path.basename(img_path)]['genre'].dropna()
# some paintings don't have a genre. Checking it
if len(genre) < 1:
null_genre += 1
continue
if genre.values[0] not in genre_label:
# No label. It's strange, but let's go on...
null_label += 1
logger.critical(str(genre.values[0]) + ' has no label!')
continue
label = genre_label[genre.values[0]]['label']
imgs = generate_images(
img_path,
genres[genres['label'] == int(label)]['amount'].values[0])
for i, img in enumerate(imgs):
datum = make_datum(img, int(label))
# with open('datum', 'w') as file:
# file.write(datum.SerializeToString())
if (in_idx + generated_imgs + i) % validation_ratio != 0:
train_tnx.put('{:0>5d}'.format(in_idx),
datum.SerializeToString())
else:
validation_tnx.put('{:0>5d}'.format(in_idx),
datum.SerializeToString())
generated_imgs += len(imgs)
logger.debug('{:0>5d}'.format(in_idx) + ':' + img_path + ' (+ ' +
str(len(imgs)) + ' augmented)')
# printing progress and file name
print(
get_percentage(in_idx, len(train_images)) + str(label) + ' ' +
path.basename(img_path))
train_db.close()
validation_db.close()
logger.info('Genre is null: ' + str(null_genre))
logger.info('Label is null: ' + str(null_label))
logger.info('Finished processing all images')
logger.info('Computing image mean')
system('compute_image_mean -backend=lmdb ' + train_db_path + ' ' +
path.join(db_data_path, 'mean.binaryproto'))
def train_and_predict(model_type, gpus):
"""
Trains model and makes predictions file
"""
# creating data generators
train_datagen = ImageDataGenerator(rescale=1. / 255, horizontal_flip=True)
test_datagen = ImageDataGenerator(rescale=1. / 255)
train_generator = train_datagen.flow_from_directory(
TRAIN_DATA_PATH,
class_mode='binary',
seed=171717,
**config[model_type]['flow_generator'])
validation_generator = test_datagen.flow_from_directory(
VALIDATION_DATA_PATH,
class_mode='binary',
**config[model_type]['flow_generator'])
test_generator = test_datagen.flow_from_directory(
TEST_DATA_PATH,
class_mode=None,
classes=CLASSES,
shuffle=False,
**config[model_type]['flow_generator'])
# loading the model
parallel_model, model = get_model(model=model_type, gpus=gpus)
print('Training model')
print(model.summary())
history = parallel_model.fit_generator(
train_generator,
validation_data=validation_generator,
callbacks=[
EarlyStopping(monitor='val_loss', min_delta=0, patience=5),
ReduceLROnPlateau(
monitor='val_loss', factor=0.2, patience=3, min_lr=0.000001),
TerminateOnNaN()
],
max_queue_size=100,
use_multiprocessing=True,
workers=cpu_count(),
**config[model_type]['fit_generator'])
# history of training
# print(history.history.keys())
# Saving architecture + weights + optimizer state
model_path = path.join(MODELS_PATH, '{}_{:.4f}_{:.4f}'.format(
model_type, history.history['val_loss'][-1]
if 'val_loss' in history.history else history.history['loss'][-1],
history.history['val_acc'][-1]
if 'val_acc' in history.history else history.history['acc'][-1]))
try_makedirs(model_path)
plot_model(model, path.join(model_path, 'model.png'), show_shapes=True)
plot_loss_acc(history, model_path)
print('Saving model')
model.save(path.join(model_path, 'model.h5'))
# Building confusion matrices for every class for validation data
print("Building confusion matrices")
val_preds = model.predict_generator(
validation_generator,
max_queue_size=100,
use_multiprocessing=True,
workers=cpu_count())
plot_confusion_matrix(
confusion_matrix(
list(validation_generator.classes), np.argmax(val_preds, axis=1)),
CLASSES, model_path)
print('Generating predictions')
predictions = model.predict_generator(
test_generator,
max_queue_size=100,
use_multiprocessing=True,
workers=cpu_count())
pred_classes = np.argmax(predictions)
# Dealing with missing data
ids = list(map(lambda id: id[5:-4], test_generator.filenames))
proba = predictions[np.arange(len(predictions)), pred_classes]
# Generating predictions.csv for Kaggle
pd.DataFrame({
'id': ids,
'predicted': pred_classes,
}).sort_values(by='id').to_csv(
path.join(model_path, 'predictions.csv'), index=False)
# Generating predictions.csv with some additional data for post-processing
pd.DataFrame({
'id': ids,
'predicted': pred_classes,
'proba': proba
}).sort_values(by='id').to_csv(
path.join(model_path, 'predictions_extd.csv'), index=False)
def train_one_dataset(params, file_name, train_s_data, train_sa_data,
train_eid, train_tid, train_fid, train_xid, train_yid,
valid_s_data, valid_sa_data, valid_eid, valid_tid,
valid_fid, valid_xid, valid_yid):
# ================================== model initialization ==================================
model = load_model(params)
optimizer = torch.optim.Adam(model.parameters(),
lr=params.lr,
betas=(0.9, 0.999),
eps=1e-8)
print("\n")
# ================================== start training ==================================
all_train_loss = {}
all_train_acc = {}
all_train_auc = {}
all_valid_loss = {}
all_valid_acc = {}
all_valid_auc = {}
best_valid_auc = 0
for idx in range(params.max_iter):
# Train Model
train_loss, train_acc, train_auc = train(model,
params,
optimizer,
train_s_data,
train_sa_data,
train_eid,
train_tid,
train_fid,
train_xid,
train_yid,
label='Train')
# Validation step
valid_loss, valid_acc, valid_auc = test(model,
params,
optimizer,
valid_s_data,
valid_sa_data,
valid_eid,
valid_tid,
valid_fid,
valid_xid,
valid_yid,
label='Valid')
print('epoch', idx + 1)
print("valid_auc\t", valid_auc, "\ttrain_auc\t", train_auc)
print("valid_acc\t", valid_acc, "\ttrain_acc\t", train_acc)
print("valid_loss\t", valid_loss, "\ttrain_loss\t", train_loss)
try_makedirs('model')
try_makedirs(os.path.join('model', params.model))
try_makedirs(os.path.join('model', params.model, params.save))
all_valid_auc[idx + 1] = valid_auc
all_train_auc[idx + 1] = train_auc
all_valid_loss[idx + 1] = valid_loss
all_train_loss[idx + 1] = train_loss
all_valid_acc[idx + 1] = valid_acc
all_train_acc[idx + 1] = train_acc
# output the epoch with the best validation auc
if valid_auc > best_valid_auc:
path = os.path.join('model', params.model, params.save,
file_name) + '_*'
for i in glob.glob(path):
os.remove(i)
best_valid_auc = valid_auc
best_epoch = idx + 1
torch.save(
{
'epoch': idx,
'model_state_dict': model.state_dict(),
'optimizer_state_dict': optimizer.state_dict(),
'loss': train_loss,
},
os.path.join('model', params.model, params.save, file_name) +
'_' + str(idx + 1))
if idx - best_epoch > 40:
break
try_makedirs('result')
try_makedirs(os.path.join('result', params.model))
try_makedirs(os.path.join('result', params.model, params.save))
f_save_log = open(
os.path.join('result', params.model, params.save, file_name), 'w')
f_save_log.write("valid_auc:\n" + str(all_valid_auc) + "\n\n")
f_save_log.write("train_auc:\n" + str(all_train_auc) + "\n\n")
f_save_log.write("valid_loss:\n" + str(all_valid_loss) + "\n\n")
f_save_log.write("train_loss:\n" + str(all_train_loss) + "\n\n")
f_save_log.write("valid_acc:\n" + str(all_valid_acc) + "\n\n")
f_save_log.write("train_acc:\n" + str(all_train_acc) + "\n\n")
f_save_log.close()
return best_epoch
