def train(parameters):
model_folder = setup_log(parameters, 'train')
set_seed(parameters['seed'])
###################################
# Data Loading
###################################
print('Loading training data ...')
train_loader = DataLoader(parameters['train_data'], parameters)
train_loader(embeds=parameters['embeds'])
train_data = DocRelationDataset(train_loader, 'train', parameters, train_loader).__call__()
print('\nLoading testing data ...')
test_loader = DataLoader(parameters['test_data'], parameters)
test_loader()
test_data = DocRelationDataset(test_loader, 'test', parameters, train_loader).__call__()
###################################
# Training
###################################
trainer = Trainer(train_loader, parameters, {'train': train_data, 'test': test_data}, model_folder)
trainer.run()
if parameters['plot']:
plot_learning_curve(trainer, model_folder)
if parameters['save_model']:
save_model(model_folder, trainer, train_loader)
def test(self):
test_loader = DataLoader(
os.path.join(self.config['global']['folders']['datasets'],
self.config['global']['files']['datasets']['test']))
self.model.evaluate_generator(
generator=test_loader.flow(batch=self.batch),
val_samples=test_loader.size)
def run():
'''
Main method of the package.
'''
# ------------- LOAD DATA -------------- #
loader = DataLoader()
training_set, test_set = loader.leave_one_out(test_index=0)
# --------------- TRAINING ---------------- #
trainlandmarks = training_set[1]
# train a Feature Detection system
featuredetector = FDTraining()
# fully automatic:
featuredetector.search_region = featuredetector.scan_region(trainlandmarks,
diff=55,
searchStep=20)
# semi-automatic:
# featuredetector.search_region = ((880, 1125), (1350, 1670), 20)
print '---Search space set to', featuredetector.search_region
print 'Done.'
# build and train an Active Shape Model
asm = ASMTraining(training_set, k=3, levels=3)
# --------------- TESTING ----------------- #
testimage, testlandmarks = test_set
# remove some noise from the test image
testimage = remove_noise(testimage)
# perform feature matching to find init regions
print '---Searching for matches...'
matches = featuredetector.match(testimage)
print 'Done.'
# or perform manual initialisation (click on center)
matches = [featuredetector._ellipse(plot.set_clicked_center(testimage))]
for i in range(len(matches)):
# search and fit image
new_fit = asm.activeshape.multiresolution_search(testimage,
matches[i],
t=10,
max_level=2,
max_iter=10,
n=0.2)
# Find the target that the new fit represents in order
# to compute the error. This is done by taking the smallest
# MSE of all targets.
mse = np.zeros((testlandmarks.shape[0], 1))
for i in range(mse.shape[0]):
mse[i] = mean_squared_error(testlandmarks[i], new_fit)
best_fit_index = np.argmin(mse)
# implement maximally tolerable error
if int(mse[best_fit_index]) < MSE_THRESHOLD:
print 'MSE:', mse[best_fit_index]
plot.render_shape_to_image(testimage,
testlandmarks[best_fit_index],
color=(0, 0, 0))
else:
print 'Bad fit. Needs to restart.'
def train(parameters):
model_folder = setup_log(parameters, 'train')
set_seed(0)
###################################
# Data Loading
###################################
print('\nLoading training data ...')
train_loader = DataLoader(parameters['train_data'], parameters)
train_loader(embeds=parameters['embeds'])
train_data = RelationDataset(train_loader, 'train',
parameters['unk_w_prob'],
train_loader).__call__()
print('\nLoading testing data ...')
test_loader = DataLoader(parameters['test_data'], parameters)
test_loader()
test_data = RelationDataset(test_loader, 'test', parameters['unk_w_prob'],
train_loader).__call__()
###################################
# TRAINING
###################################
trainer = Trainer({
'train': train_data,
'test': test_data
}, parameters, train_loader, model_folder)
trainer.run()
trainer.eval_epoch(final=True, save_predictions=True)
if parameters['plot']:
plot_learning_curve(trainer, model_folder)
def __init__(self):
self.img_rows = 128
self.img_cols = 128
self.channels = 3
self.n_features = 128
self.n_classes = 31
self.img_shape = (self.img_rows, self.img_cols, self.channels)
self.data_loader = DataLoader(img_res=(self.img_rows, self.img_cols),
n_classes=self.n_classes)
optimizer = Adam(0.0002, 0.5)
self.D_R = build_discriminator(self.img_shape)
self.D_F = build_feature_discriminator(self.n_features)
self.D_R.compile(loss='binary_crossentropy',
optimizer=optimizer,
metrics=['accuracy'])
self.D_F.compile(loss='binary_crossentropy',
optimizer=optimizer,
metrics=['accuracy'])
self.Refiner = build_refiner(self.img_shape, self.channels)
self.Feature = build_encoder(self.img_shape, self.n_features)
self.Classifier = build_classifier(self.n_features, self.n_classes)
self.D_R.trainable = False
self.D_F.trainable = False
self.Classifier.compile(loss='categorical_crossentropy',
optimizer=optimizer,
metrics=['accuracy'])
self.Classifier.trainable = False
self.GAN_1 = Sequential()
self.GAN_1.add(self.Refiner)
self.GAN_1.add(self.D_R)
self.GAN_1.compile(loss='binary_crossentropy',
optimizer=optimizer,
metrics=['accuracy'])
self.GAN_2 = Sequential()
self.GAN_2.add(self.Refiner)
self.GAN_2.add(self.Feature)
self.GAN_2.add(self.D_F)
self.GAN_2.compile(loss='binary_crossentropy',
optimizer=optimizer,
metrics=['accuracy'])
self.GAN_3 = Sequential()
self.GAN_3.add(self.Refiner)
self.GAN_3.add(self.Feature)
self.GAN_3.add(self.Classifier)
self.GAN_3.compile(loss='categorical_crossentropy',
optimizer=optimizer,
metrics=['accuracy'])
def weak_label(train_primitive_matrix): # Load data dl = DataLoader() # train_primitive_matrix, val_primitive_matrix, test_primitive_matrix, \ # train_ground, val_ground, test_ground, mode, frameNums = dl.load_data(mode = 'auto', numFramesToLoad = 1000) _, val_primitive_matrix, _, \ _, val_ground, _, mode, frameNums = dl.load_data(mode = 'auto', numFramesToLoad = 1000, need_split = False) # Pass into reef return_matrix = reef_label(train_primitive_matrix, val_primitive_matrix, val_ground, None) return(return_matrix)
def main(params):
# Arguments passed down from the parser
download_data_path = params['input_data_path']
data_basepath = params['output_data_path']
logs_path = params['logs_path']
plots_path = params['plots_path']
contour_type = params['contour_type']
toggle_plot = params['toggle_plot']
mini_batch_size = params['mini_batch_size']
# Set up logging
_setup_logging(logs_path)
# Meat of the python program
logging.info(
'Started running preprocessor for the following parameters: {}'.format(
params))
reader = DataReader(download_data_path=download_data_path,
data_basepath=data_basepath,
logs_path=logs_path,
plots_path=plots_path,
contour_type=contour_type,
save_plot=toggle_plot)
images, masks, metadata = reader.load_samples(reader.sample_tuples)
loader = DataLoader(output_dir=data_basepath,
images=images,
masks=masks,
metadata=metadata,
mini_batch_size=mini_batch_size)
minibatches = loader.random_mini_batches()
# If user enabled the toggle_plot to evaluate the reader and loader modules
if toggle_plot:
# Check out the overall view of all samples (dicoms, masks) with no shuffle and no partitioning
logging.debug(
'Plotting the overall view of all (dicom, mask) samples...')
reader.plot_samples(images, masks, metadata,
'data-reader_no-shuffle_batchset.jpg')
# Check out first minibatch to see whether it matches the ones in 'data-reader_no-shuffle_batchset.jpg' with same label
logging.debug(
'Extracting and plotting the first minibatch to validate DataLoader against the previous plot from DataReader...'
)
for i, minibatch in enumerate(minibatches):
if i > 1:
break
minibatch_image, minibatch_mask, minibatch_metadata = minibatch
# minibatch_image (8,256,256), minibatch_mask (8,256,256), minibatch_metadata (8,)
reader.plot_samples(minibatch_image, minibatch_mask,
minibatch_metadata,
'data-loader_shuffled_batchset.jpg')
logging.info('Finished running preprocessor...')
def run():
'''
Main method of the package.
'''
# ------------- LOAD DATA -------------- #
loader = DataLoader()
training_set, test_set = loader.leave_one_out(test_index=0)
# --------------- TRAINING ---------------- #
trainlandmarks = training_set[1]
# train a Feature Detection system
featuredetector = FDTraining()
# fully automatic:
featuredetector.search_region = featuredetector.scan_region(trainlandmarks, diff=55, searchStep=20)
# semi-automatic:
# featuredetector.search_region = ((880, 1125), (1350, 1670), 20)
print '---Search space set to', featuredetector.search_region
print 'Done.'
# build and train an Active Shape Model
asm = ASMTraining(training_set, k=3, levels=3)
# --------------- TESTING ----------------- #
testimage, testlandmarks = test_set
# remove some noise from the test image
testimage = remove_noise(testimage)
# perform feature matching to find init regions
print '---Searching for matches...'
matches = featuredetector.match(testimage)
print 'Done.'
# or perform manual initialisation (click on center)
matches = [featuredetector._ellipse(plot.set_clicked_center(testimage))]
for i in range(len(matches)):
# search and fit image
new_fit = asm.activeshape.multiresolution_search(testimage, matches[i], t=10, max_level=2, max_iter=10, n=0.2)
# Find the target that the new fit represents in order
# to compute the error. This is done by taking the smallest
# MSE of all targets.
mse = np.zeros((testlandmarks.shape[0], 1))
for i in range(mse.shape[0]):
mse[i] = mean_squared_error(testlandmarks[i], new_fit)
best_fit_index = np.argmin(mse)
# implement maximally tolerable error
if int(mse[best_fit_index]) < MSE_THRESHOLD:
print 'MSE:', mse[best_fit_index]
plot.render_shape_to_image(testimage, testlandmarks[best_fit_index], color=(0, 0, 0))
else:
print 'Bad fit. Needs to restart.'
def run(sequences, base_path):
kinect_nodes = ['KINECTNODE1', 'KINECTNODE2', 'KINECTNODE3', 'KINECTNODE4',
'KINECTNODE5', 'KINECTNODE6', 'KINECTNODE7', 'KINECTNODE8',
'KINECTNODE9', 'KINECTNODE10']
edges = [
(0, 1), (0, 2), (1, 15), (15, 16), (0, 3), (3, 4), (4, 5),
(2, 6), (6, 7), (7, 8), (1, 17), (17, 18), (0, 9), (9, 10),
(10, 11), (2, 12), (12, 13), (13, 14)
]
failed_count = 0
total_maps = 0
for sequence in sequences:
loader = DataLoader(base_path, sequence)
mi, ma = loader.min_max()
ma = mi+25 # TODO : temporary
for idx in trange(mi, ma-len(kinect_nodes), len(kinect_nodes)):
shuffle(kinect_nodes) # TODO : turn back on
with ProcessPoolExecutor() as executor:
results = [executor.submit(create_tmap, loader, edges, i, node, idx)
for i, node in enumerate(kinect_nodes)]
for f in as_completed(results):
total_maps += 1
try:
tmap, jmap, d_im = f.result()
# 217088*8*(1+19+18)*10
# Accumulate enough maps for about 10GB, then save compressed
if tmap.size*tmap.itemsize > 10000000000:
# Save the map with savez_compressed
# Clear accumulation map
pass
# size*itemsize*(d, j, e)*numkin*(maxidx)
# print(f'size: {tmap.size}, items: {tmap.dtype} ({tmap.itemsize} bytes)')
except ValueError:
failed_count += 1
continue
# for i, node in enumerate(kinect_nodes):
# d_im, bodies, camera = loader.frame(idx+i, node)
# total_maps += 1
# try:
# tmap, _ = target_map(bodies, edges, camera, d_im.shape)
# except ValueError:
# # Failed to get TMAP
# failed_count += 1
# continue
# print(kinect_nodes)
print(f'FAILED: {failed_count}, TOTAL MAPS: {total_maps}')
def __init__(self,
filename=None,
page_duration=1.,
nchannels=None,
**kwargs):
if 'position' not in kwargs:
kwargs['position'] = (400, 300)
if 'size' not in kwargs:
kwargs['size'] = (800, 600)
super(RawDataView, self).__init__(**kwargs)
self.loader = DataLoader(filename,
page_duration=page_duration,
nchannels=nchannels)
self.signals = SignalsVisual(self.loader.data)
def skeleton_visualization_3d(loader: DataLoader, idx: int):
bodies, univ_time = loader._bodies_univ_time(idx)
skeletons, xs, ys, zs = read_bodies(bodies)
fig = plt.figure(figsize=(4, 4))
ax = fig.add_subplot(111, projection='3d')
# Plot landmarks
ax.scatter(xs, ys, zs)
# Draw lines between edges in each skeleton
for skeleton in skeletons:
for edge in edges:
coords_x = [skeleton[0, edge[0]], skeleton[0, edge[1]]]
coords_y = [skeleton[1, edge[0]], skeleton[1, edge[1]]]
coords_z = [skeleton[2, edge[0]], skeleton[2, edge[1]]]
ax.plot(coords_x, coords_y, coords_z)
# Ensure equal axis
max_range = np.array(
[xs.max() - xs.min(),
ys.max() - ys.min(),
zs.max() - zs.min()]).max() / 2.0
mid_x = (xs.max() + xs.min()) * 0.5
mid_y = (ys.max() + ys.min()) * 0.5
mid_z = (zs.max() + zs.min()) * 0.5
ax.set_xlim(mid_x - max_range, mid_x + max_range)
ax.set_ylim(mid_y - max_range, mid_y + max_range)
ax.set_zlim(mid_z - max_range, mid_z + max_range)
plt.show()
def show_depth_frame_as_pointcloud(kinect_node, idx, loader: DataLoader):
depth_image, _, camera = loader.frame(idx, kinect_node)
points = camera.project_frame(depth_image)
pcd = o3d.geometry.PointCloud()
pcd.points = o3d.utility.Vector3dVector(points)
o3d.visualization.draw_geometries([pcd])
def __init__(self):
config = ConfigLoader()
self.parameters = config.load_config()
self.model_folder = setup_log(self.parameters, 'train')
set_seed(0)
###################################
# Data Loading
###################################
print('\nLoading training data ...')
self.train_loader = DataLoader(parameters['train_data'], self.parameters)
train_loader(embeds=self.parameters['embeds'])
self.train_data = RelationDataset(train_loader, 'train', self.parameters['unk_w_prob'], train_loader).__call__()
print('\nLoading testing data ...')
test_loader = DataLoader(self.parameters['test_data'], parameters)
test_loader()
self.test_data = RelationDataset(test_loader, 'test', self.parameters['unk_w_prob'], train_loader).__call__()
def test(parameters):
print('*** Testing Model ***')
model_folder = setup_log(parameters, 'test')
print('Loading mappings ...')
with open(os.path.join(model_folder, 'mappings.pkl'), 'rb') as f:
loader = pkl.load(f)
print('Loading testing data ...')
test_loader = DataLoader(parameters['test_data'], parameters)
test_loader.__call__()
test_data = RelationDataset(test_loader, 'test', parameters['unk_w_prob'],
loader).__call__()
m = Trainer({
'train': [],
'test': test_data
}, parameters, loader, model_folder)
trainer = load_model(model_folder, m)
trainer.eval_epoch(final=True, save_predictions=True)
def Train():
global loader, training_set, test_set, trainlandmarks, pca
# ------------- LOAD DATA -------------- #
loader = DataLoader()
training_set, test_set = loader.leave_one_out(test_index=0)
# --------------- TRAINING ---------------- #
trainlandmarks = training_set[1]
# build and train an Active Shape Model
asm = ASMTraining(training_set, k=3, levels=3)
pca = asm.activeshape.pdmodel
t = 0
for i in range(len(pca.eigenvalues)):
if sum(pca.eigenvalues[:i]) / sum(pca.eigenvalues) < 0.98:
t = t + 1
else:
break
print("Constructed model with {0} modes of variation".format(t))
def __init__(self, filename=None, page_duration=1., nchannels=None,
**kwargs):
if 'position' not in kwargs:
kwargs['position'] = (400, 300)
if 'size' not in kwargs:
kwargs['size'] = (800,600)
super(RawDataView, self).__init__(**kwargs)
self.loader = DataLoader(filename, page_duration=page_duration,
nchannels=nchannels)
self.signals = SignalsVisual(self.loader.data)
class RawDataView(PanZoomCanvas):
def __init__(self,
filename=None,
page_duration=1.,
nchannels=None,
**kwargs):
if 'position' not in kwargs:
kwargs['position'] = (400, 300)
if 'size' not in kwargs:
kwargs['size'] = (800, 600)
super(RawDataView, self).__init__(**kwargs)
self.loader = DataLoader(filename,
page_duration=page_duration,
nchannels=nchannels)
self.signals = SignalsVisual(self.loader.data)
def on_mouse_wheel(self, event):
super(RawDataView, self).on_mouse_wheel(event)
if event.modifiers == (keys.CONTROL, ):
sign = np.sign(event.delta[1])
self.signals.signal_scale = np.clip(self.signals.signal_scale \
*1.2**sign,
1e-2, 1e2)
def on_key_press(self, event):
super(RawDataView, self).on_key_press(event)
if event.key == 'Left':
self.signals.data = self.loader.previous()
self.update()
elif event.key == 'right':
self.signals.data = self.loader.next()
self.update()
elif event.key == 'Home':
self.signals.data = self.loader.first()
self.update()
elif event.key == 'End':
self.signals.data = self.loader.last()
self.update()
def main(args):
# Load input file, prepare training and validation sets
data_loader = DataLoader(args.input, args.pre_emb, args.dim_word,
args.batch_size, args.lowercase, args.zeros)
# Save vocabularies
with open(os.path.join(args.output, 'words_vocab.pkl'), 'wb') as f:
cPickle.dump(data_loader.word_to_id, f)
with open(os.path.join(args.output, 'char_vocab.pkl'), 'wb') as f:
cPickle.dump(data_loader.char_to_id, f)
with open(os.path.join(args.output, 'tag_vocab.pkl'), 'wb') as f:
cPickle.dump(data_loader.tag_to_id, f)
# Save parameters
with open(os.path.join(args.output, 'args.json'), 'wb') as f:
cPickle.dump(args, f)
# Build model
model = Model(args, data_loader)
best_score = 0
niter_without_improvement = 0
for epoch in range(args.nepochs):
print("Epoch {:} out of {:}".format(epoch + 1, args.nepochs))
data_loader.reset_pointer()
score = model.run_epoch(epoch)
args.learning_rate *= args.decay_rate
# early stopping and saving best parameters
if score >= best_score:
niter_without_improvement = 0
model.save_session(args.output)
best_score = score
print("New best score: {}".format(score))
else:
niter_without_improvement += 1
if niter_without_improvement >= args.early_stopping:
print("Early stopping {} epochs without improvement".format(
niter_without_improvement))
break
def test(parameters):
model_folder = setup_log(parameters, 'test')
print('\nLoading mappings ...')
train_loader = load_mappings(model_folder)
print('\nLoading testing data ...')
test_loader = DataLoader(parameters['test_data'], parameters)
test_loader()
test_data = DocRelationDataset(test_loader, 'test', parameters, train_loader).__call__()
m = Trainer(train_loader, parameters, {'train': [], 'test': test_data}, model_folder)
trainer = load_model(model_folder, m)
trainer.eval_epoch(final=True, save_predictions=True)
class RawDataView(PanZoomCanvas):
def __init__(self, filename=None, page_duration=1., nchannels=None,
**kwargs):
if 'position' not in kwargs:
kwargs['position'] = (400, 300)
if 'size' not in kwargs:
kwargs['size'] = (800,600)
super(RawDataView, self).__init__(**kwargs)
self.loader = DataLoader(filename, page_duration=page_duration,
nchannels=nchannels)
self.signals = SignalsVisual(self.loader.data)
def on_mouse_wheel(self, event):
super(RawDataView, self).on_mouse_wheel(event)
if event.modifiers == (keys.CONTROL,):
sign = np.sign(event.delta[1])
self.signals.signal_scale = np.clip(self.signals.signal_scale \
*1.2**sign,
1e-2, 1e2)
def on_key_press(self, event):
super(RawDataView, self).on_key_press(event)
if event.key == 'Left':
self.signals.data = self.loader.previous()
self.update()
elif event.key == 'right':
self.signals.data = self.loader.next()
self.update()
elif event.key == 'Home':
self.signals.data = self.loader.first()
self.update()
elif event.key == 'End':
self.signals.data = self.loader.last()
self.update()
def main():
torch.manual_seed(42)
parser = argparse.ArgumentParser()
parser.add_argument('path', type=os.path.abspath)
parser.add_argument('--dataset', default="div2k", type=str)
parser.add_argument('--transform', default=None, type=str)
parser.add_argument('--gpu', default=0, type=int)
args = parser.parse_args()
torch.cuda.set_device(args.gpu)
validation = DataLoader(os.path.join("data", args.dataset, "val"),
shuffle=False,
num_workers=0)
model = SteganoGAN.load(path=args.path)
metrics = {field: list() for field in METRIC_FIELDS}
model._validate(validation, metrics, transform=args.transform)
metrics = {k: torch.tensor(v).mean().item() for k, v in metrics.items()}
print(metrics)
def load_data(data_loc):
"""
Load the data from an external excel resource.
Parameters
----------
data_loc: str
Path to the data.
Returns
-------
pd.DataFrame
Data frame containing the data with additional pre and post phases
added.
"""
# load raw data
loader = DataLoader(f_name=data_loc, s_name="Blad1")
loaded_data, _ = loader.load(quick_loading=True)
# Select columns
if 'phase' in loaded_data.columns:
loaded_data = loaded_data[[
'DateTime', 'UserId', 'ExerciseId', 'LOID', 'Correct',
'AbilityAfterAnswer', 'Effort', 'Lesson', 'LessonProgress', 'phase'
]]
else:
loaded_data = loaded_data[[
'DateTime', 'UserId', 'ExerciseId', 'LOID', 'Correct',
'AbilityAfterAnswer', 'Effort', 'Lesson', 'LessonProgress'
]]
# Sort data
loaded_data = loader.sort_data_by(loaded_data,
["DateTime", "LessonProgress"])
# Filter unneeded
loaded_data = loader.filter(filters, df=loaded_data)
if not loader.quick_loaded:
loaded_data = PhaseFinder().find_gynzy_phases_with_lesson_info(
loaded_data, "")
loader.quick_save(loaded_data)
return loaded_data
def train(self):
train_loader = DataLoader(
os.path.join(self.config['global']['folders']['datasets'],
self.config['global']['files']['datasets']['train']))
validation_loader = DataLoader(os.path.join(
self.config['global']['folders']['datasets'],
self.config['global']['files']['datasets']['validation']),
random=False)
h = self.model.fit_generator(train_loader.flow(self.batch),
samples_per_epoch=self.samples,
nb_epoch=self.epochs,
validation_data=validation_loader.flow(
self.batch),
nb_val_samples=validation_loader.size)
self.dump(h.history)
def __init__(self):
self.img_rows = 128
self.img_cols = 128
self.channels = 3
self.img_shape = (self.img_rows, self.img_cols, self.channels)
self.dataset_name = 'chokepoint'
self.data_loader = DataLoader(dataset_name=self.dataset_name,
img_res=(self.img_rows, self.img_cols))
patch = int(self.img_rows / 2**4)
self.disc_patch = (patch, patch, 1)
self.gf = 32
self.df = 64
self.lambda_c = 10.0
self.lambda_id = 0.1 * self.lambda_c
optimizer = Adam(0.0002, 0.5)
self.d_sim = self.build_discriminator()
self.d_target = self.build_discriminator()
self.d_sim.compile(loss='mse',
optimizer=optimizer,
metrics=['accuracy'])
self.d_target.compile(loss='mse',
optimizer=optimizer,
metrics=['accuracy'])
self.g_R1 = self.build_refiner()
self.g_R2 = self.build_refiner()
img_sim = Input(shape=self.img_shape)
img_target = Input(shape=self.img_shape)
refined_target = self.g_R1(img_sim)
refined_sim = self.g_R2(img_target)
rec_sim = self.g_R2(refined_target)
rec_target = self.g_R1(refined_sim)
img_sim_id = self.g_R2(img_sim)
img_target_id = self.g_R1(img_target)
self.d_sim.trainable = False
self.d_target.trainable = False
valid_sim = self.d_sim(refined_sim)
valid_target = self.d_target(refined_target)
self.combined = Model(inputs=[img_sim, img_target],
outputs=[ valid_sim, valid_target,
rec_sim, rec_target,
img_sim_id, img_target_id ])
self.combined.compile(loss=['mse', 'mse',
'mae', 'mae',
'mae', 'mae'],
loss_weights=[ 1, 1,
self.lambda_c, self.lambda_c,
self.lambda_id, self.lambda_id ],
optimizer=optimizer)
class CGAN():
def __init__(self):
self.img_rows = 128
self.img_cols = 128
self.channels = 3
self.img_shape = (self.img_rows, self.img_cols, self.channels)
self.dataset_name = 'chokepoint'
self.data_loader = DataLoader(dataset_name=self.dataset_name,
img_res=(self.img_rows, self.img_cols))
patch = int(self.img_rows / 2**4)
self.disc_patch = (patch, patch, 1)
self.gf = 32
self.df = 64
self.lambda_c = 10.0
self.lambda_id = 0.1 * self.lambda_c
optimizer = Adam(0.0002, 0.5)
self.d_sim = self.build_discriminator()
self.d_target = self.build_discriminator()
self.d_sim.compile(loss='mse',
optimizer=optimizer,
metrics=['accuracy'])
self.d_target.compile(loss='mse',
optimizer=optimizer,
metrics=['accuracy'])
self.g_R1 = self.build_refiner()
self.g_R2 = self.build_refiner()
img_sim = Input(shape=self.img_shape)
img_target = Input(shape=self.img_shape)
refined_target = self.g_R1(img_sim)
refined_sim = self.g_R2(img_target)
rec_sim = self.g_R2(refined_target)
rec_target = self.g_R1(refined_sim)
img_sim_id = self.g_R2(img_sim)
img_target_id = self.g_R1(img_target)
self.d_sim.trainable = False
self.d_target.trainable = False
valid_sim = self.d_sim(refined_sim)
valid_target = self.d_target(refined_target)
self.combined = Model(inputs=[img_sim, img_target],
outputs=[ valid_sim, valid_target,
rec_sim, rec_target,
img_sim_id, img_target_id ])
self.combined.compile(loss=['mse', 'mse',
'mae', 'mae',
'mae', 'mae'],
loss_weights=[ 1, 1,
self.lambda_c, self.lambda_c,
self.lambda_id, self.lambda_id ],
optimizer=optimizer)
def build_refiner(self):
def conv2d(layer_input, filters, f_size=4):
d = Conv2D(filters, kernel_size=f_size, strides=2, padding='same')(layer_input)
d = LeakyReLU(alpha=0.2)(d)
d = InstanceNormalization()(d)
return d
def deconv2d(layer_input, skip_input, filters, f_size=4, dropout_rate=0):
u = UpSampling2D(size=2)(layer_input)
u = Conv2D(filters, kernel_size=f_size, strides=1, padding='same', activation='relu')(u)
if dropout_rate:
u = Dropout(dropout_rate)(u)
u = InstanceNormalization()(u)
u = Concatenate()([u, skip_input])
return u
d0 = Input(shape=self.img_shape)
d1 = conv2d(d0, self.gf)
d2 = conv2d(d1, self.gf*2)
d3 = conv2d(d2, self.gf*4)
d4 = conv2d(d3, self.gf*8)
u1 = deconv2d(d4, d3, self.gf*4)
u2 = deconv2d(u1, d2, self.gf*2)
u3 = deconv2d(u2, d1, self.gf)
u4 = UpSampling2D(size=2)(u3)
output_img = Conv2D(self.channels, kernel_size=4, strides=1, padding='same', activation='tanh')(u4)
return Model(d0, output_img)
def build_discriminator(self):
def d_layer(layer_input, filters, f_size=4, normalization=True):
"""Discriminator layer"""
d = Conv2D(filters, kernel_size=f_size, strides=2, padding='same')(layer_input)
d = LeakyReLU(alpha=0.2)(d)
if normalization:
d = InstanceNormalization()(d)
return d
img = Input(shape=self.img_shape)
d1 = d_layer(img, self.df, normalization=False)
d2 = d_layer(d1, self.df*2)
d3 = d_layer(d2, self.df*4)
d4 = d_layer(d3, self.df*8)
validity = Conv2D(1, kernel_size=4, strides=1, padding='same')(d4)
return Model(img, validity)
def train(self, epochs, batch_size=1, interval=50):
start_time = datetime.datetime.now()
valid = np.ones((batch_size,) + self.disc_patch)
refined = np.zeros((batch_size,) + self.disc_patch)
for epoch in range(epochs):
for batch_i, (imgs_sim, imgs_target) in enumerate(self.data_loader.load_batch(batch_size)):
refined_target = self.g_R1.predict(imgs_sim)
refined_sim = self.g_R2.predict(imgs_target)
dsim_loss_real = self.d_sim.train_on_batch(imgs_sim, valid)
dsim_loss_refined = self.d_sim.train_on_batch(refined_sim, refined)
dsim_loss = 0.5 * np.add(dsim_loss_real, dsim_loss_refined)
dtarget_loss_real = self.d_target.train_on_batch(imgs_target, valid)
dtarget_loss_refined = self.d_target.train_on_batch(refined_target, refined)
dtarget_loss = 0.5 * np.add(dtarget_loss_real, dtarget_loss_refined)
d_loss = 0.5 * np.add(dsim_loss, dtarget_loss)
g_loss = self.combined.train_on_batch([imgs_sim, imgs_target],
[valid, valid,
imgs_sim, imgs_target,
imgs_sim, imgs_target])
elapsed_time = datetime.datetime.now() - start_time
print ("[Epoch %d/%d] [targetatch %d/%d] [DR loss: %f, acc: %3d%%] [R loss: %05f, adv: %05f, DF: %05f, id: %05f] time: %s " \
% ( epoch, epochs,
batch_i, self.data_loader.n_batches,
d_loss[0], 100*d_loss[1],
g_loss[0],
np.mean(g_loss[1:3]),
np.mean(g_loss[3:5]),
np.mean(g_loss[5:6]),
elapsed_time))
if batch_i % interval == 0:
self.sample_images(epoch, batch_i)
def sample_images(self, epoch, batch_i):
os.makedirs('output/%s' % self.dataset_name, exist_ok=True)
r, c = 1, 3
imgs_sim = self.data_loader.load_data(domain="sim", batch_size=1, is_testing=True)
imgs_target = self.data_loader.load_data(domain="target", batch_size=1, is_testing=True)
refined_target = self.g_R1.predict(imgs_sim)
refined_sim = self.g_R2.predict(imgs_target)
rec_sim = self.g_R2.predict(refined_target)
rec_target = self.g_R1.predict(refined_sim)
gen_imgs = np.concatenate([imgs_sim, refined_target, rec_sim, imgs_target, refined_sim, rec_target])
gen_imgs = 0.5 * gen_imgs + 0.5
titles = ['Simulated', 'Refined','Target']
fig, axs = plt.subplots(r, c)
axs[0].imshow(gen_imgs[0])
axs[0].set_title(titles[0])
axs[0].axis('off')
axs[1].imshow(gen_imgs[1])
axs[1].set_title(titles[1])
axs[1].axis('off')
axs[2].imshow(gen_imgs[3])
axs[2].set_title(titles[2])
axs[2].axis('off')
fig.savefig("output/%s/%d_%d.png" % (self.dataset_name, epoch, batch_i))
plt.close()
def load(ql, f_name="./res/leerpaden_app.xlsx", id_="simone"):
print("Loading data")
loader = DataLoader(f_name=f_name, s_name="Blad1")
data, transfer_data = loader.load(quick_loading=ql)
log_data = None
if id_ not in ["test"]:
log_data = loader.load_log()
if loader.quick_loaded is False:
print("Organizing data")
# data["DateTime"] = loader.combine_date_time(data["SubmitDate"],
# data["Time"])
if id_ in [
"kb_all", "kb_all_attempts_curve", "kb_smoothed_curves", "jm"
]:
data = data[[
'DateTime', 'UserId', 'ExerciseId', 'LOID', 'Correct',
'AbilityAfterAnswer', 'Effort', 'Lesson', 'LessonProgress'
]]
else:
data = data[[
'DateTime', 'UserId', 'ExerciseId', 'LOID', 'Correct',
'AbilityAfterAnswer'
]]
print("Preprocessing data")
if id_ not in ["kb", "kb_all"]:
if "LessonProgress" in data.columns:
unfiltered = loader.sort_data_by(
data, ["DateTime", "LessonProgress"])
else:
unfiltered = loader.sort_data_by(data, "DateTime")
else:
unfiltered = data
transfer_data = loader.first_attempts_only(
['UserId', 'ExerciseId', 'LOID'], df=transfer_data, copy_df=False)
data = loader.filter(filters, df=unfiltered)
# print(data.head())
if id_ in [
"karlijn_en_babette",
"kb",
"kb_all",
"test",
"jm",
]:
data = PhaseFinder().find_gynzy_phases(data, id_)
elif id_ in [
"kb_all_attempts_curve",
"kb_smoothed_curves",
]:
data = PhaseFinder().find_gynzy_phases_with_lesson_info(data, id_)
else:
data = PhaseFinder().find_phases(data)
data = correct(data)
loader.quick_save(transfer_data, f_name="quicktransfer.pkl")
loader.quick_save(data)
first_att_data = loader.first_attempts_only(
['UserId', 'ExerciseId', 'LOID'], df=data)
# print(data.loc[data.UserId == 59491].tail(40).values)
return data, first_att_data, transfer_data, log_data
cost = T.mean(ctc.cpu_ctc_th(network_output, input_lens, output, output_lens))
grads = T.grad(cost, wrt=network_output)
all_params = lasagne.layers.get_all_params(l_out)
updates = lasagne.updates.adam(cost, all_params, 0.001)
train = theano.function([l_in.input_var, input_lens, output, output_lens],
cost,
updates=updates)
predict = theano.function([l_in.input_var], network_output)
get_grad = theano.function([l_in.input_var, input_lens, output, output_lens],
grads)
from loader import DataLoader
data_loader = DataLoader(mbsz=mbsz,
min_len=min_len,
max_len=max_len,
num_classes=num_classes)
i = 1
while True:
i += 1
print i
sample = data_loader.sample()
cost = train(*sample)
out = predict(sample[0])
print cost
print "input", sample[0][0].argmax(1)
print "prediction", out[:, 0].argmax(1)
print "expected", sample[2][:sample[3][0]]
if i == 10000:
grads = get_grad(*sample)
# 1-1)trainig model
if args.train > 1:
# read trainingdata
print("Reading training data...")
seqs, labels = read_all(args.dir)
for i in range(len(seqs)):
seqs[i] = torch.tensor(seqs[i]).unsqueeze(0).float()
le = LabelEncoder()
le = le.fit(labels)
labels_en = le.transform(labels)
print("-->Complete reading training data")
print("-->num of training data:", len(labels))
print(labels[0])
print(seqs[0])
print(seqs[0].shape)
train_loader = DataLoader(length=1024, batch_size=64, n_batches=1000)
train_loader(labels_en, seqs, labels_en)
print(len(train_loader))
# train model
print("\nTraining model...")
model = Discriminator(1024, len(labels)).float().to(device)
optimizer = optim.Adam(model.parameters(), lr=args.rate)
for epoch in range(args.epoch):
train(model, device, train_loader, optimizer, epoch + 1)
#val_loss = test(model, device, test_loader)
print("")
# 1-2)using trained model
if args.train < 1:
import tensorflow as tf
from model import Model
from loader import DataLoader
from flags import *
import os
os.environ['TF_CPP_MIN_LOG_LEVEL'] = '3'
FLAGS = tf.app.flags.FLAGS
print('<Creating flags>')
create_flags()
print(f'<Loading data - {FLAGS.dataset}>')
dl = DataLoader(FLAGS.dataset)
dl.load()
print('<Defining model>')
tf.reset_default_graph()
model = Model()
print('<Testing model>')
print(f'Using IBP: {FLAGS.use_ibp}')
print(f'Test epsilon: {FLAGS.test_eps}')
model.test(dl, -1, use_ibp=FLAGS.use_ibp, test_eps=FLAGS.test_eps)
def main(args):
#initialize dataset class
ldr = DataLoader(mode=0,
seed=args.seed,
path=args.dataset,
drp_percent=args.drp_impt)
data_loader = torch.utils.data.DataLoader(ldr,
batch_size=args.batch_size,
shuffle=True,
drop_last=False)
num_neurons = int(ldr.train[0].shape[0])
#Initialize normalizing flow model neural network and its optimizer
flow = util.init_flow_model(num_neurons, args.num_nf_layers, InterpRealNVP,
ldr.train[0].shape[0], args)
nf_optimizer = torch.optim.Adam(
[p for p in flow.parameters() if p.requires_grad == True], lr=args.lr)
#Initialize latent space neural network and its optimizer
num_hidden_neurons = [
int(ldr.train[0].shape[0]),
int(ldr.train[0].shape[0]),
int(ldr.train[0].shape[0]),
int(ldr.train[0].shape[0]),
int(ldr.train[0].shape[0])
]
nn_model = LatentToLatentApprox(int(ldr.train[0].shape[0]),
num_hidden_neurons).float()
if args.use_cuda:
nn_model.cuda()
nn_optimizer = torch.optim.Adam(
[p for p in nn_model.parameters() if p.requires_grad == True],
lr=args.lr)
reset_scheduler = 2
if args.dataset == 'news':
print("\n****************************************")
print("Starting OnlineNewsPopularity experiment\n")
elif args.dataset == 'mnist':
print("\n*********************************")
print("Starting MNIST dropout experiment\n")
else:
print("Invalid dataset error")
sys.exit()
#Train and test MCFlow
for epoch in range(args.n_epochs):
util.endtoend_train(flow, nn_model, nf_optimizer, nn_optimizer,
data_loader, args) #Train the MCFlow model
with torch.no_grad():
ldr.mode = 1 #Use testing data
te_mse, _ = util.endtoend_test(flow, nn_model, data_loader,
args) #Test MCFlow model
ldr.mode = 0 #Use training data
print("Epoch", epoch, " Test RMSE", te_mse**.5)
if (epoch + 1) % reset_scheduler == 0:
#Reset unknown values in the dataset using predicted estimates
if args.dataset == 'mnist':
ldr.reset_img_imputed_values(nn_model, flow, args.seed, args)
else:
ldr.reset_imputed_values(nn_model, flow, args.seed, args)
flow = util.init_flow_model(
num_neurons, args.num_nf_layers, InterpRealNVP,
ldr.train[0].shape[0],
args) #Initialize brand new flow model to train on new dataset
nf_optimizer = torch.optim.Adam(
[p for p in flow.parameters() if p.requires_grad == True],
lr=args.lr)
reset_scheduler = reset_scheduler * 2
vocab_X = data_npz['vocab_X'].item()
vocab_Y = data_npz['vocab_Y'].item()
model_path = model_dir / f'model_{args.epoch:03d}.pth'
model = EncoderDecoder(**args_params)
model.load_state_dict(torch.load(model_path.as_posix()))
print(f'loaded model from {model_path}', file=sys.stderr)
test_X = []
test_max_length = 0
for sentence in load_data('../data/chap3/test.en'):
test_X.append(sentence_to_ids(vocab_X, sentence))
test_max_length = max(test_max_length, len(test_X[-1]))
test_dataloader = DataLoader(test_X, test_X, 1, shuffle=False)
pred_Y = []
for batch in test_dataloader:
batch_X, _, lengths_X = batch
pred = model(batch_X, lengths_X, max_length=lengths_X[0])
pred = pred.max(dim=-1)[1].view(-1).data.cpu().numpy().tolist()
if word2id['<EOS>'] in pred:
pred = pred[:pred.index(word2id['<EOS>'])]
pred_y = [vocab_Y.id2word[_id] for _id in pred]
pred_Y.append(pred_y)
with open('./submission.csv', 'w') as f:
writer = csv.writer(f, delimiter=' ', lineterminator='\n')
writer.writerows(pred_Y)
def main(args):
if args.gpu is not None:
print('Using GPU %d' % args.gpu)
os.environ["CUDA_DEVICE_ORDER"] = "PCI_BUS_ID"
os.environ["CUDA_VISIBLE_DEVICES"] = str(args.gpu)
else:
print('CPU mode')
normalize = transforms.Normalize(mean=[0.485, 0.456, 0.406],
std=[0.229, 0.224, 0.225])
train_transform = transforms.Compose([
transforms.RandomResizedCrop(227),
transforms.RandomHorizontalFlip(),
transforms.ToTensor(),
normalize,
])
val_transform = transforms.Compose([
transforms.Resize(256),
transforms.CenterCrop(227),
#transforms.RandomResizedCrop(227),
transforms.RandomHorizontalFlip(),
transforms.ToTensor(),
normalize,
])
# DataLoader initialize
train_data = DataLoader(args.pascal_path,
'trainval',
transform=train_transform)
t_trainloader = torch.utils.data.DataLoader(dataset=train_data,
batch_size=args.batch,
shuffle=True,
num_workers=CORES,
pin_memory=True)
print('[DATA] Target Train loader done!')
val_data = DataLoader(args.pascal_path,
'test',
transform=val_transform,
random_crops=args.crops)
t_testloader = torch.utils.data.DataLoader(dataset=val_data,
batch_size=args.batch,
shuffle=False,
num_workers=CORES,
pin_memory=True)
print('[DATA] Target Test loader done!')
if not args.test:
s_trainset = torchvision.datasets.ImageFolder(
args.imgnet_path,
transform=transforms.Compose([
transforms.RandomHorizontalFlip(),
transforms.RandomResizedCrop(227),
transforms.ToTensor(), normalize
]))
s_trainloader = torch.utils.data.DataLoader(dataset=s_trainset,
batch_size=5 * args.batch,
shuffle=False,
num_workers=CORES,
pin_memory=True)
print('[DATA] Source Train loader done!')
N = len(train_data.names)
iter_per_epoch = N / args.batch
model = Network(num_classes=21)
g_model = Network(num_classes=21)
d_model = disnet()
if args.gpu is not None:
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
print('[MODEL] CUDA DEVICE : {}'.format(device))
model.to(device)
g_model.to(device)
d_model.to(device)
optimizer = torch.optim.SGD(filter(lambda p: p.requires_grad,
model.parameters()),
lr=args.lr,
momentum=0.9,
weight_decay=0.0001)
g_optimizer = torch.optim.SGD(filter(lambda p: p.requires_grad,
g_model.parameters()),
lr=args.lr,
momentum=0.9,
weight_decay=0.0001)
d_optimizer = torch.optim.SGD(filter(lambda p: p.requires_grad,
d_model.parameters()),
lr=args.lr,
momentum=0.9,
weight_decay=0.0001)
if args.model is not None:
checkpoint = torch.load(args.model)
model.load(checkpoint['model'], True)
g_model.load(checkpoint['g_model'], True)
d_model.load_state_dict(checkpoint['d_model'])
optimizer.load_state_dict(checkpoint['optimizer'])
g_optimizer.load_state_dict(checkpoint['g_optimizer'])
d_optimizer.load_state_dict(checkpoint['d_optimizer'])
############## TRAINING ###############
print('Start training: lr %f, batch size %d' % (args.lr, args.batch))
print('Checkpoint: ' + args.checkpoint)
# Train the Model
steps = args.iter_start
best_mAP = 0.0
best_path = './{}/model-{}_pretrained-{}_lr-0pt001_lmd_s-{}_acc-{}.pth'.format(
args.checkpoint, 'alexnet', 'False', args.lmd_s, '{}')
if args.test:
args.epochs = 1
for epoch in range(int(iter_per_epoch * args.iter_start), args.epochs):
if not args.test:
adjust_learning_rate(optimizer,
epoch,
init_lr=args.lr,
step=100,
decay=0.1)
adjust_learning_rate(g_optimizer,
epoch,
init_lr=args.lr / 2,
step=100,
decay=0.1)
adjust_learning_rate(d_optimizer,
epoch,
init_lr=args.lr / 1.5,
step=100,
decay=0.1)
done = train(epoch, model, g_model, d_model, optimizer,
g_optimizer, d_optimizer, t_trainloader,
s_trainloader, args.lmd_s, device)
best_mAP = test(epoch, model, g_model, d_model, optimizer, g_optimizer,
d_optimizer, t_testloader, best_mAP, best_path, device)
handlers = [
logging.FileHandler(os.path.join(opt.save_dir, 'output.log'), mode='w'),
logging.StreamHandler()
]
logging.basicConfig(handlers=handlers, level=logging.INFO, format='')
logger = logging.getLogger()
NOISE_DIM = 100
NF = opt.nf
N_EMB = opt.nemb
if __name__ == '__main__':
L = DataLoader(data_dir='data/',
n_emb=N_EMB,
method=opt.method,
batch_size=opt.batch,
shuffle=True,
validation_split=0.0)
model, trainer = None, None
if opt.method == 'cgan':
model = CGAN
trainer = CGANTrainer
elif opt.method == 'acgan':
model = ACGAN
trainer = ACGANTrainer
elif opt.method == 'wcgan':
model = WCGAN
trainer = WCGANTrainer
G = model.Generator(noise_dim=NOISE_DIM, condition_dim=N_EMB, nf=NF)
D = model.Discriminator(noise_dim=NOISE_DIM, condition_dim=N_EMB, nf=NF)
l_out = lasagne.layers.ReshapeLayer(h3, ((max_len, mbsz, num_classes)))
network_output = lasagne.layers.get_output(l_out)
cost = T.mean(ctc.cpu_ctc_th(network_output, input_lens, output, output_lens))
grads = T.grad(cost, wrt=network_output)
all_params = lasagne.layers.get_all_params(l_out)
updates = lasagne.updates.adam(cost, all_params, 0.001)
train = theano.function([l_in.input_var, input_lens, output, output_lens], cost, updates=updates)
predict = theano.function([l_in.input_var], network_output)
get_grad = theano.function([l_in.input_var, input_lens, output, output_lens], grads)
from loader import DataLoader
data_loader = DataLoader(mbsz=mbsz, min_len=min_len, max_len=max_len, num_classes=num_classes)
i = 1
while True:
i += 1
print i
sample = data_loader.sample()
cost = train(*sample)
out = predict(sample[0])
print cost
print "input", sample[0][0].argmax(1)
print "prediction", out[:, 0].argmax(1)
print "expected", sample[2][: sample[3][0]]
if i == 10000:
grads = get_grad(*sample)
import ipdb