def run():
from config import get_config
config = get_config()
load_model_epoch.run()
return True
print("Timer")
import models
from utils.make_dirs import create_dirs
from datasets import loaders
from torchsample.modules import ModuleTrainer
create_dirs()
cuda_device = -1
tr_data_loader, val_data_loader, te_data_loader = loaders.online_triplet_loaders(
)
model = getattr(models, config.network).get_network()(
channel=config.network_channel, embedding_size=config.embedding)
from losses.online_triplet import OnlineTripletLoss
from datasets.data_utils import AllTripletSelector, HardestNegativeTripletSelector, RandomNegativeTripletSelector, \
SemihardNegativeTripletSelector
margin = 1.
if args.selector == 'AllTripletSelector':
criterion = OnlineTripletLoss(margin, AllTripletSelector())
elif args.selector == 'HardestNegativeTripletSelector':
criterion = OnlineTripletLoss(margin,
HardestNegativeTripletSelector(margin))
elif args.selector == 'RandomNegativeTripletSelector':
criterion = OnlineTripletLoss(margin,
RandomNegativeTripletSelector(margin))
elif args.selector == 'SemihardNegativeTripletSelector':
criterion = OnlineTripletLoss(margin,
SemihardNegativeTripletSelector(margin))
if config.cuda:
model.cuda()
criterion.cuda()
trainer = ModuleTrainer(model)
trainer.compile(loss=criterion, optimizer='adam')
if config.cuda:
cuda_device = 0
trainer.evaluate_loader(tr_data_loader, verbose=2, cuda_device=cuda_device)
trainer.evaluate_loader(val_data_loader,
verbose=2,
cuda_device=cuda_device)
trainer.evaluate_loader(te_data_loader, verbose=2, cuda_device=cuda_device)
start_time = time.time()
trainer.fit_loader(tr_data_loader,
val_loader=val_data_loader,
num_epoch=1,
verbose=2,
cuda_device=cuda_device)
end_time = time.time()
with open("./times.log", mode="a") as f:
f.write("%s %s\n" % (config.result_dir, str(end_time - start_time)))
def run():
device = 0 if torch.cuda.is_available() else -1
config = BaseConfig()
logging.info('%s_cross_entropy/ckpt.pth.tar' % config.result_dir)
if os.path.exists('%s_cross_entropy/ckpt.pth.tar' % config.result_dir):
return True
logging.info("Triplet Trainer Not Return")
create_dirs()
tr_data_loader, val_data_loader, te_data_loader = loaders.data_loaders(
shuffle=True)
model = getattr(models,
config.network)(num_classes=len(tr_data_loader.dataset.y))
model
criterion = CrossEntropyLoss()
if device == 0:
model.cuda()
criterion.cuda()
trainer = ModuleTrainer(model)
epochs = config.epochs
callbacks = [
EarlyStopping(monitor='val_acc', patience=20),
ModelCheckpoint('%s_cross_entropy' % config.result_dir,
save_best_only=True,
verbose=1),
CSVLogger("%s_cross_entropy/logger.csv" % config.result_dir)
]
metrics = [CategoricalAccuracy()]
trainer.compile(loss=criterion, optimizer='adam', metrics=metrics)
trainer.set_callbacks(callbacks)
trainer.fit_loader(tr_data_loader,
val_loader=val_data_loader,
num_epoch=epochs,
verbose=2,
cuda_device=device)
tr_loss = trainer.evaluate_loader(tr_data_loader, cuda_device=device)
logging.info(tr_loss)
val_loss = trainer.evaluate_loader(val_data_loader, cuda_device=device)
logging.info(val_loss)
te_loss = trainer.evaluate_loader(te_data_loader, cuda_device=device)
logging.info(te_loss)
with open('%s_cross_entropy' % config.log_path, "a") as f:
f.write('Train %s\nVal:%s\nTest:%s\n' %
(str(tr_loss), str(val_loss), te_loss))
def run():
from config import get_config
config = get_config()
print("Timer")
import losses
import models
from utils.make_dirs import create_dirs
from datasets import loaders
from torchsample.modules import ModuleTrainer
create_dirs()
cuda_device = -1
tr_data_loader, val_data_loader, te_data_loader = getattr(
loaders, config.loader_name)(train=True)
model = getattr(models, config.network).get_network()(
channel=config.network_channel, embedding_size=config.embedding)
criterion = getattr(losses, config.loss)()
if config.cuda:
model.cuda()
criterion.cuda()
trainer = ModuleTrainer(model)
trainer.compile(loss=criterion, optimizer='adam')
if config.cuda:
cuda_device = 0
trainer.evaluate_loader(tr_data_loader, verbose=2, cuda_device=cuda_device)
trainer.evaluate_loader(val_data_loader,
verbose=2,
cuda_device=cuda_device)
trainer.evaluate_loader(te_data_loader, verbose=2, cuda_device=cuda_device)
start_time = time.time()
trainer.fit_loader(tr_data_loader,
val_loader=val_data_loader,
num_epoch=1,
verbose=2,
cuda_device=cuda_device)
end_time = time.time()
with open("./times.log", mode="a") as f:
f.write("%s %s\n" % (config.result_dir, str(end_time - start_time)))
model.fc = nn.Sequential(nn.Linear(model.fc.in_features, num_classes),
nn.Sigmoid())
trainer = ModuleTrainer(model.cuda())
trainer.compile(loss=nn.BCELoss().cuda(),
optimizer='adam',
metrics=[BinaryAccuracy()],
callbacks=[
ModelCheckpoint(directory="../input/torch/",
filename='torch{epoch}.{loss}.pth.tar',
monitor='val_loss')
])
from torchsample import TensorDataset
from torch.utils.data import DataLoader
train_dataset = AmazonDataset("train35.csv")
x, y = train_dataset[0]
train_loader = DataLoader(train_dataset, batch_size=batch_size)
val_dataset = AmazonDataset("valid5.csv")
val_loader = DataLoader(val_dataset, batch_size=batch_size)
#help(trainer.fit_loader)
trainer.fit_loader(train_loader,
val_loader=val_loader,
nb_epoch=epochs,
cuda_device=0)
def run():
from config import get_config
config = get_config()
print('%s/ckpt.pth.tar' % config.result_dir)
if os.path.exists('%s/ckpt.pth.tar' % config.result_dir):
return True
print("Contrastive Trainer Not Return")
import models
from utils.make_dirs import create_dirs
from datasets import loaders
from torchsample.callbacks import EarlyStopping, ModelCheckpoint, CSVLogger
from torchsample.metrics import CategoricalAccuracy
from torchsample.modules import ModuleTrainer
create_dirs()
cuda_device = -1
tr_data_loader, val_data_loader, te_data_loader = loaders.online_pair_loaders()
model = getattr(models, config.network).get_network()(channel=config.network_channel,
embedding_size=config.embedding)
from losses.online_cosine import OnlineCosineLoss
from datasets.data_utils import AllPositivePairSelector, HardNegativePairSelector
margin = 0.5
if args.selector == 'AllPositivePairSelector':
criterion = OnlineCosineLoss(margin, AllPositivePairSelector())
elif args.selector == 'HardNegativePairSelector':
criterion = OnlineCosineLoss(margin, HardNegativePairSelector())
if config.cuda:
model.cuda()
criterion.cuda()
trainer = ModuleTrainer(model)
epochs = config.epochs
callbacks = [EarlyStopping(monitor='val_loss', patience=50),
ModelCheckpoint(config.result_dir, save_best_only=True, verbose=1),
CSVLogger("%s/logger.csv" % config.result_dir)]
metrics = []
if config.loader_name == 'data_loaders' and 'Angle' not in config.loss:
metrics.append(CategoricalAccuracy(top_k=1))
trainer.compile(loss=criterion, optimizer='adam', metrics=metrics)
trainer.set_callbacks(callbacks)
if config.cuda:
cuda_device = 0
start_time = time.time()
trainer.fit_loader(tr_data_loader, val_loader=val_data_loader, num_epoch=epochs, verbose=2,
cuda_device=cuda_device)
end_time = time.time()
with open("%s/app.log" % config.result_dir, mode="a") as f:
f.write("%s\n" % str(model))
f.write("%s %s\n" % (config.loss, str(end_time - start_time)))
tr_loss = trainer.evaluate_loader(tr_data_loader, cuda_device=cuda_device)
print(tr_loss)
val_loss = trainer.evaluate_loader(val_data_loader, cuda_device=cuda_device)
te_loss = trainer.evaluate_loader(te_data_loader, cuda_device=cuda_device)
print(te_loss)
with open(config.log_path, "a") as f:
f.write('Train %s\nVal:%s\nTest:%s\n' % (str(tr_loss), str(val_loss), te_loss))
tr_data_loader, val_data_loader, te_data_loader = loaders.data_loaders(train=False, val=True)
tr_y_pred = trainer.predict_loader(tr_data_loader, cuda_device=cuda_device)
save_embeddings(tr_y_pred, '%s/train_embeddings.csv' % config.result_dir)
save_labels(tr_data_loader, '%s/train_labels.csv' % config.result_dir)
val_y_pred = trainer.predict_loader(val_data_loader, cuda_device=cuda_device)
save_embeddings(val_y_pred, '%s/val_embeddings.csv' % config.result_dir)
save_labels(val_data_loader, '%s/val_labels.csv' % config.result_dir)
te_y_pred = trainer.predict_loader(te_data_loader, cuda_device=cuda_device)
save_embeddings(te_y_pred, '%s/test_embeddings.csv' % config.result_dir)
save_labels(te_data_loader, '%s/test_labels.csv' % config.result_dir)
def train_net(train, val, model, name):
transformations_train = transforms.apply_chain([
transforms.random_fliplr(),
transforms.random_flipud(),
transforms.augment(),
torchvision.transforms.ToTensor()
])
transformations_val = transforms.apply_chain([
torchvision.transforms.ToTensor(),
])
dset_train = KaggleAmazonJPGDataset(train, paths.train_jpg, transformations_train, divide=False)
train_loader = DataLoader(dset_train,
batch_size=64,
shuffle=True,
num_workers=10,
pin_memory=True)
dset_val = KaggleAmazonJPGDataset(val, paths.train_jpg, transformations_val, divide=False)
val_loader = DataLoader(dset_val,
batch_size=64,
num_workers=10,
pin_memory=True)
ignored_params = list(map(id, chain(
model.classifier.parameters(),
model.layer1.parameters(),
model.layer2.parameters(),
model.layer3.parameters(),
model.layer4.parameters()
)))
base_params = filter(lambda p: id(p) not in ignored_params,
model.parameters())
optimizer = optim.Adam([
{'params': base_params},
{'params': model.layer1.parameters()},
{'params': model.layer2.parameters()},
{'params': model.layer3.parameters()},
{'params': model.layer4.parameters()},
{'params': model.classifier.parameters()}
], lr=0, weight_decay=0.0005)
trainer = ModuleTrainer(model)
def schedule(current_epoch, current_lrs, **logs):
lrs = [1e-3, 1e-4, 1e-5]
epochs = [0, 2, 10]
for lr, epoch in zip(lrs, epochs):
if current_epoch >= epoch:
current_lrs[5] = lr
if current_epoch >= 1:
current_lrs[4] = lr * 0.4
current_lrs[3] = lr * 0.2
current_lrs[2] = lr * 0.1
current_lrs[1] = lr * 0.05
current_lrs[0] = lr * 0.01
return current_lrs
trainer.set_callbacks([
callbacks.ModelCheckpoint(
paths.models,
name,
save_best_only=False,
saving_strategy=lambda epoch: True
),
CSVLogger('./logs/' + name),
LearningRateScheduler(schedule)
])
trainer.compile(loss=nn.BCELoss(),
optimizer=optimizer)
trainer.fit_loader(train_loader,
val_loader,
nb_epoch=35,
verbose=1,
cuda_device=0)
x = x.view(-1, 1600)
x = F.relu(self.fc1(x))
x = F.dropout(x, training=self.training)
x = self.fc2(x)
return F.log_softmax(x)
model = Network()
trainer = ModuleTrainer(model)
callbacks = [EarlyStopping(patience=10),
ReduceLROnPlateau(factor=0.5, patience=5)]
regularizers = [L1Regularizer(scale=1e-3, module_filter='conv*'),
L2Regularizer(scale=1e-5, module_filter='fc*')]
constraints = [UnitNorm(frequency=3, unit='batch', module_filter='fc*')]
initializers = [XavierUniform(bias=False, module_filter='fc*')]
metrics = [CategoricalAccuracy(top_k=3)]
trainer.compile(loss='nll_loss',
optimizer='adadelta',
regularizers=regularizers,
constraints=constraints,
initializers=initializers,
metrics=metrics,
callbacks=callbacks)
trainer.fit_loader(train_loader, val_loader, num_epoch=20, verbose=1)
lr=args.lr,
momentum=args.momentum,
weight_decay=args.weight_decay)
trainer.compile(
loss=criterion,
optimizer=optimizer,
#optimizer='adadelta',
#regularizers=regularizers,
#constraints=constraints,
#initializers=initializers,
#metrics=metrics,
callbacks=[chk, PosNeg(model, criterion, val_dataset)])
print("trainer compilation done")
#val_dataset = VOCDetection(VOCroot, [('2007', 'test')], BaseTransform(
# ssd_dim, rgb_means), AnnTensorTransform())
#val_loader = DataLoader(val_dataset, batch_size=args.batch_size)
if args.cuda:
trainer.fit_loader(train_loader,
val_loader,
nb_epoch=args.epochs,
verbose=1,
cuda_device=0)
else:
trainer.fit_loader(train_loader,
val_loader,
nb_epoch=args.epochs,
verbose=1)
target_species = target[:, 0].long()
target_length = target[:, 1]
input_length = input_length * (target_species != 7).float()
loss = nn.MSELoss()(input_length, target_length) * 1e-5 + F.nll_loss(
input_species, target_species)
return loss
def null_loss(input, target):
return th.autograd.Variable(th.FloatTensor([0.])).cuda()
trainer.compile(
loss=[species_length_loss, null_loss],
optimizer=optimizer,
#regularizers=regularizers,
#constraints=constraints,
#metrics=metrics,
initializers=initializers,
callbacks=callbacks,
#transforms=transforms.Compose([RandomRotate(5.)]),
)
trainer.fit_loader(train_loader,
valid_loader,
initial_epoch=initial_epoch,
num_epoch=200,
verbose=1,
cuda_device=0 if th.cuda.is_available() else -1)
self.conv1 = nn.Conv2d(1, 32, kernel_size=3)
self.conv2 = nn.Conv2d(32, 64, kernel_size=3)
self.fc1 = nn.Linear(1600, 128)
self.fc2 = nn.Linear(128, 10)
def forward(self, x):
x = F.relu(F.max_pool2d(self.conv1(x), 2))
x = F.relu(F.max_pool2d(self.conv2(x), 2))
x = x.view(-1, 1600)
x = F.relu(self.fc1(x))
#x = F.dropout(x, training=self.training)
x = self.fc2(x)
return F.log_softmax(x)
model = Network()
trainer = ModuleTrainer(model)
trainer.compile(loss='nll_loss', optimizer='adadelta')
trainer.fit_loader(train_loader, num_epoch=3, verbose=1)
ypred = trainer.predict(x_train)
print(ypred.size())
eval_loss = trainer.evaluate(x_train, y_train)
print(eval_loss)
print(trainer.history)
#print(trainer.history['loss'])
def main(args):
"""Simply redirrcts to the correct function."""
start = default_timer()
args.cuda = not args.no_cuda and torch.cuda.is_available()
np.random.seed(args.seed)
torch.manual_seed(args.seed)
print("-------------------------------------------------")
if args.verbose > 0:
print("Ran on {}".format(time.strftime("%Y-%m-%d %H:%M")))
print()
print('Parameters: {}'.format(vars(args)))
print()
# PREPARES DATA
if args.verbose > 1:
print('Prepares data ...')
train, valid, test = train_valid_test_datasets(
args.dataset,
validSize=args.validation_size,
isHashingTrick=not args.dictionnary,
nFeaturesRange=args.num_features_range,
ngramRange=args.ngrams_range,
seed=args.seed,
num_words=args.num_embeding,
specificArgs={'dictionnary': ['num_words']})
num_classes = len(train.classes)
train = DataLoader(dataset=train,
batch_size=args.batch_size,
shuffle=not args.no_shuffle)
valid = DataLoader(dataset=valid,
batch_size=args.batch_size,
shuffle=not args.no_shuffle)
test = DataLoader(dataset=test,
batch_size=args.batch_size,
shuffle=not args.no_shuffle)
# PREPARES MODEL
if args.verbose > 1:
print('Prepares model ...')
Model = ModelNoDict if args.model == 'embed-softmax' else ModelDict
model = Model(args.num_embeding,
args.dim,
num_classes,
isHash=not args.no_hashembed,
seed=args.seed,
num_buckets=args.num_buckets,
append_weight=not args.no_append_weight,
aggregation_mode=args.agg_mode,
oldAlgorithm=args.old_hashembed)
if args.cuda:
model.cuda()
if args.verbose > 1:
model_parameters = filter(lambda p: p.requires_grad,
model.parameters())
nParams = sum([np.prod(p.size()) for p in model_parameters])
print('Num parameters in model: {}'.format(nParams))
print("Train on {} samples, validate on {} samples".format(
len(train), len(valid)))
# COMPILES
trainer = ModuleTrainer(model)
loss = nn.CrossEntropyLoss()
optimizer = torch.optim.Adam(model.parameters())
callbacks = []
callbackMetric = "val_loss" if args.val_loss_callback else "val_acc_metric"
if args.patience is not None:
callbacks.append(
EarlyStopping(patience=args.patience, monitor=callbackMetric))
if args.plateau_reduce_lr is not None:
callbacks.append(
ReduceLROnPlateau(factor=args.plateau_reduce_lr[1],
patience=args.plateau_reduce_lr[0],
monitor=callbackMetric))
if not args.no_checkpoint:
modelDir = os.path.join(parentddir, 'models')
filename = "{}.pth.tar".format(args.dataset)
callbacks.append(
ModelCheckpoint(modelDir,
filename=filename,
save_best_only=True,
max_save=1,
monitor=callbackMetric))
metrics = [CategoricalAccuracy()]
trainer.compile(loss=loss,
optimizer=optimizer,
callbacks=callbacks,
metrics=metrics)
# TRAINS
if args.verbose > 1:
print('Trains ...')
trainer.fit_loader(train,
val_loader=valid,
num_epoch=args.epochs,
verbose=args.verbose,
cuda_device=0 if args.cuda else -1)
# EVALUATES
print()
evalTest = trainer.evaluate_loader(test,
verbose=args.verbose,
cuda_device=0 if args.cuda else -1)
evalValid = trainer.evaluate_loader(valid,
verbose=args.verbose,
cuda_device=0 if args.cuda else -1)
print("Last Model. Validation - Loss: {}, Accuracy: {}".format(
evalValid['val_loss'], evalValid['val_acc_metric']))
print("Last Model. Test - Loss: {}, Accuracy: {}".format(
evalTest['val_loss'], evalTest['val_acc_metric']))
if not args.no_checkpoint:
checkpoint = torch.load(os.path.join(modelDir, filename))
model.load_state_dict(checkpoint["state_dict"])
evalTest = trainer.evaluate_loader(test,
verbose=args.verbose,
cuda_device=0 if args.cuda else -1)
evalValid = trainer.evaluate_loader(valid,
verbose=args.verbose,
cuda_device=0 if args.cuda else -1)
print("Best Model. Validation - Loss: {}, Accuracy: {}".format(
evalValid['val_loss'], evalValid['val_acc_metric']))
print("Best Model. Test - Loss: {}, Accuracy: {}".format(
evalTest['val_loss'], evalTest['val_acc_metric']))
if args.verbose > 1:
print('Finished after {:.1f} min.'.format(
(default_timer() - start) / 60))
metrics = [torchsample.metrics.CategoricalAccuracy(top_k=3)] trainer.compile(optimizer=optim.Adam(net.parameters(),lr=0.001),loss=torch.nn.CrossEntropyLoss(),metrics=metrics) batch_size = 64 X_t, X_ts, y_t, y_ts = train_test_split(X_train, y_train, test_size=0.15, random_state=42) tf = tstf.Compose([tstf.ToPILImage(), tstf.RandomRotation(10), tstf.ToTensor()]) trainData = CNN.prepData(X_t, y_t, input_transform=tf) trainDataL = DataLoader(trainData, batch_size=batch_size) testData = CNN.prepData(X_ts, y_ts) testDataL = DataLoader(testData, batch_size=batch_size) trainer.fit_loader(trainDataL, val_loader=testDataL, num_epoch=nr_epochs, verbose=1) #loss_ts = trainer.evaluate_loader() ''' #Define train and test passages for learning and evaluation def train(epoch): net.train() train_loss = 0 acc_meas = [0, 0] b_id = 0 total_sample, total_predictions = [], [] # for each batch generated by DataLoader for batch_id, sample in enumerate(trainDataL): optimizer.zero_grad() # Clear the gradients from our optimizer # inputs, targets = sample['X'], sample['Y']
x = F.relu(F.max_pool2d(self.conv2(x), 2))
x = x.view(-1, 1600)
x = F.relu(self.fc1(x))
x = F.dropout(x, training=self.training)
x = self.fc2(x)
return F.log_softmax(x), F.log_softmax(x)
# one loss function for multiple targets
model = Network()
trainer = ModuleTrainer(model)
trainer.compile(loss='nll_loss',
optimizer='adadelta')
trainer.fit_loader(train_loader,
num_epoch=3,
verbose=1)
ypred1, ypred2 = trainer.predict(x_train)
print(ypred1.size(), ypred2.size())
eval_loss = trainer.evaluate(x_train, [y_train, y_train])
print(eval_loss)
# multiple loss functions
model = Network()
trainer = ModuleTrainer(model)
trainer.compile(loss=['nll_loss', 'nll_loss'],
optimizer='adadelta')
trainer.fit_loader(train_loader,
num_epoch=3,
verbose=1)
x = x.view(-1, 1600)
x = F.relu(self.fc1(x))
x = F.dropout(x, training=self.training)
x = self.fc2(x)
return F.log_softmax(x)
model = Network()
trainer = ModuleTrainer(model)
callbacks = [EarlyStopping(patience=10),
ReduceLROnPlateau(factor=0.5, patience=5)]
regularizers = [L1Regularizer(scale=1e-3, module_filter='conv*'),
L2Regularizer(scale=1e-5, module_filter='fc*')]
constraints = [UnitNorm(frequency=3, unit='batch', module_filter='fc*')]
initializers = [XavierUniform(bias=False, module_filter='fc*')]
metrics = [CategoricalAccuracy(top_k=3)]
trainer.compile(loss='nll_loss',
optimizer='adadelta',
regularizers=regularizers,
constraints=constraints,
initializers=initializers,
metrics=metrics,
callbacks=callbacks)
trainer.fit_loader(train_loader, val_loader, num_epoch=20, verbose=1)