def __init__(
self,
model: Model,
train_loader: DataLoader,
val_loader: DataLoader,
max_epoch: int = 100,
save_dir: str = "swa_trainer",
checkpoint_path: str = None,
device="cpu",
config: dict = None,
**kwargs,
) -> None:
super().__init__(
model,
train_loader,
val_loader,
max_epoch,
save_dir,
checkpoint_path,
device,
config,
**kwargs,
)
# initialize swa_model.
self.swa_model = Model.initialize_from_state_dict(model.state_dict())
self.swa_model.to(self.device)
self.swa_n = 0
class TestTrainer(TestCase):
def setUp(self) -> None:
super().setUp()
arch_dict = {
"name": "clusternet6cTwoHead",
"input_size": 24,
"num_channel": 1,
"output_k_A": 50,
"output_k_B": 10,
"num_sub_heads": 5,
}
optim_dict = {"name": "Adam"}
scheduler_dict = {
"name": "MultiStepLR",
"milestones": [10, 20, 30, 40, 50, 60, 70, 80, 90],
"gamma": 1,
}
self.model = Model(arch_dict, optim_dict, scheduler_dict)
self.scheduler = RampScheduler(100, 500, 10, 1, -5)
def test_save_trainer(self):
for epoch in range(50):
self.model.step()
self.scheduler.step()
def setUp(self) -> None:
super().setUp()
self._model = Model(arch=deeplabv3_resnet101(pretrained=True))
self._model_ema = EMA_Model(Model(deeplabv3_resnet101(False)),
alpha=0.9,
weight_decay=1e-4)
# self._model_ema._model.load_state_dict(self._model.state_dict())
self._device = torch.device(
"cuda" if torch.cuda.is_available() else "cpu")
self._img = (ToTensor()(
Image.open("img1.jpg").convert("RGB")).unsqueeze(0).to(
self._device))
self._model.to(self._device)
self._model_ema.to(self._device)
def setUp(self) -> None:
super().setUp()
arch_dict = {
"name": "clusternet6cTwoHead",
"input_size": 24,
"num_channel": 1,
"output_k_A": 50,
"output_k_B": 10,
"num_sub_heads": 5,
}
optim_dict = {"name": "Adam"}
scheduler_dict = {
"name": "MultiStepLR",
"milestones": [10, 20, 30, 40, 50, 60, 70, 80, 90],
"gamma": 1,
}
self.model = Model(arch_dict, optim_dict, scheduler_dict)
self.scheduler = RampScheduler(100, 500, 10, 1, -5)
class TestEMA(TestCase):
def setUp(self) -> None:
super().setUp()
self._model = Model(arch=deeplabv3_resnet101(pretrained=True))
self._model_ema = EMA_Model(Model(deeplabv3_resnet101(False)),
alpha=0.9,
weight_decay=1e-4)
# self._model_ema._model.load_state_dict(self._model.state_dict())
self._device = torch.device(
"cuda" if torch.cuda.is_available() else "cpu")
self._img = (ToTensor()(
Image.open("img1.jpg").convert("RGB")).unsqueeze(0).to(
self._device))
self._model.to(self._device)
self._model_ema.to(self._device)
def test_1(self):
self._model.eval()
self._model_ema.eval()
with torch.no_grad():
student_prediction = self._model(self._img)["out"]
plt.figure(1)
plt.imshow(self._img[0].cpu().numpy().transpose(1, 2, 0))
plt.contour(student_prediction.max(1)[1].cpu().detach().numpy()[0])
plt.show(block=False)
self._model_ema._global_step += 1
for i in range(1000):
teacher_prediction = self._model_ema(self._img)["out"]
plt.figure(2)
plt.clf()
plt.imshow(self._img[0].cpu().numpy().transpose(1, 2, 0))
plt.contour(
teacher_prediction.max(1)[1].cpu().detach().numpy()[0])
plt.show(block=False)
plt.pause(0.00000003)
self._model_ema.step(self._model)
def _gaussian_regularization(self,
model: Model,
tf1_images,
tf1_pred_simplex: List[Tensor],
head_name="B") -> Tensor:
"""
calculate predicton simplexes on gaussian noise tf1 images and the kl div of the original prediction simplex.
:param tf1_images: tf1-transformed images
:param tf1_pred_simplex: simplex list of tf1-transformed image prediction
:return: loss
"""
_tf1_images_gaussian = self.gaussian_adder(tf1_images)
_tf1_gaussian_simplex = model.torchnet(_tf1_images_gaussian,
head=head_name)
assert assert_list(simplex, tf1_pred_simplex)
assert assert_list(simplex, _tf1_gaussian_simplex)
assert tf1_pred_simplex.__len__() == _tf1_gaussian_simplex.__len__()
reg_loss = []
for __tf1_simplex, __tf1_gaussian_simplex in zip(
tf1_pred_simplex, _tf1_gaussian_simplex):
reg_loss.append(
self.kl_div(__tf1_gaussian_simplex, __tf1_simplex.detach()))
return sum(reg_loss) / len(reg_loss) # type: ignore
assert Trainer, config.get("Trainer").get("name")
return Trainer
DEFAULT_CONFIG = "config_CIFAR.yaml"
merged_config = ConfigManger(DEFAULT_CONFIG_PATH=DEFAULT_CONFIG,
verbose=True,
integrality_check=True).config
train_loader_A, train_loader_B, val_loader = get_dataloader(
**merged_config["DataLoader"])
# create model:
model = Model(
arch_dict=merged_config["Arch"],
optim_dict=merged_config["Optim"],
scheduler_dict=merged_config["Scheduler"],
)
model = to_Apex(model, opt_level=None, verbosity=0)
Trainer = get_trainer(merged_config)
clusteringTrainer = Trainer(model=model,
train_loader_A=train_loader_A,
train_loader_B=train_loader_B,
val_loader=val_loader,
config=merged_config,
**merged_config["Trainer"])
clusteringTrainer.start_training()
clusteringTrainer.clean_up()
gdl_loss = self.abs_loss(orig_gradient_x, pred_gradient_x) + self.abs_loss(
orig_gradient_y, pred_gradient_y
)
return self.mse(pred, gt) + self.gdl_weight * gdl_loss
img_transform = transforms.Compose(
[
transforms.ToTensor(),
# transforms.Normalize((0.5), (0.5))
]
)
dataset = MNIST(DATA_PATH, transform=img_transform)
dataloader = DataLoader(dataset, batch_size=128, shuffle=True)
model = Model()
model.torchnet = autoencoder()
model.optimizer = torch.optim.Adam(
model.torchnet.parameters(), lr=1e-3, weight_decay=1e-5
)
config = ConfigManger().parsed_args
if config["loss"] == "mse":
criterion = nn.MSELoss()
elif config["loss"] == "gdl":
criterion = gradient_difference_loss(config["weight"])
trainer = MNISTTrainer(
model=model,
train_loader=dataloader,
val_loader=dataloader,
**config["DataLoader"])
datainterface.drop_last = True
train_loader = datainterface.ParallelDataLoader(
default_mnist_img_transform["tf1"],
default_mnist_img_transform["tf2"],
default_mnist_img_transform["tf2"],
default_mnist_img_transform["tf2"],
default_mnist_img_transform["tf2"],
default_mnist_img_transform["tf2"],
)
datainterface.split_partitions = ["val"]
datainterface.drop_last = False
val_loader = datainterface.ParallelDataLoader(
default_mnist_img_transform["tf3"])
model = Model(config["Arch"], config["Optim"], config["Scheduler"])
assert config["Trainer"]["name"] in (
"IIC",
"IIC_enhance",
"IIC_adv_enhance",
"IMSAT",
"IMSAT_enhance",
)
if config["Trainer"]["name"] == "IMSAT":
# MI(x,p) + CE(p,adv(p)) or MI(x,p) + CE(p,geom(p))
Trainer = IMSAT_Trainer
elif config["Trainer"]["name"] == "IMSAT_enhance":
# MI(x,p) + CE(p,adv(p)) + CE(p,geom(p))
Trainer = IMSAT_Enhanced_Trainer
elif config["Trainer"]["name"] == "IIC":
img_transforms["tf1"],
img_transforms["tf2"],
img_transforms["tf2"],
img_transforms["tf2"],
img_transforms["tf2"],
)
val_loader = DatasetInterface(
split_partitions=val_split_partition,
**merged_config["DataLoader"]).ParallelDataLoader(
img_transforms["tf3"])
return train_loader_A, train_loader_B, val_loader
train_loader_A, train_loader_B, val_loader = get_dataloader(merged_config)
# create model:
model = Model(
arch_dict=merged_config.get("Arch"),
optim_dict=merged_config.get("Optim"),
scheduler_dict=merged_config.get("Scheduler"),
)
trainer = MixUpTrainer(model=model,
train_loader_A=train_loader_A,
train_loader_B=train_loader_B,
val_loader=val_loader,
config=merged_config,
**merged_config.get("Trainer"))
trainer.start_training()
trainer.clean_up()
val_transform=val_transform,
dataloader_params=dataloader_params,
)
prior = get_prior_from_dataset(unlabeled_loader.dataset)
print("prior for unlabeled dataset", prior)
# network part
import warnings
fix_all_seed(int(config.get("Seed", 0)))
with warnings.catch_warnings():
warnings.filterwarnings("ignore")
net = SimpleNet(1, len(unlabeled_class_sample_nums))
optim = RAdam(net.parameters(), lr=1e-4, weight_decay=1e-4)
scheduler = MultiStepLR(optim, milestones=[50, 80], gamma=0.2)
model = Model()
model.torchnet = net
model.optimizer = optim
model.scheduler = scheduler
# trainer part
Trainer = {
"SemiTrainer": SemiTrainer,
"SemiEntropyTrainer": SemiEntropyTrainer,
"SemiPrimalDualTrainer": SemiPrimalDualTrainer,
"SemiWeightedIICTrainer": SemiWeightedIICTrainer,
"SemiUDATrainer": SemiUDATrainer,
}.get(config["Trainer"]["name"])
assert Trainer
trainer = Trainer(
from deepclustering.manager import ConfigManger
from deepclustering.model import Model, to_Apex
from arch import _register_arch
from data import get_dataloader
from scheduler import CustomScheduler
from trainer import AdaNetTrainer, VAT_Trainer
_ = _register_arch # to enable the network registration
DEFAULT_CONFIG_PATH = "config.yaml"
config = ConfigManger(DEFAULT_CONFIG_PATH,
verbose=True,
integrality_check=False).config
model = Model(config.get("Arch"), config.get("Optim"), config.get("Scheduler"))
model = to_Apex(model, opt_level=None)
label_loader, unlabel_loader, val_loader = get_dataloader(
config["DataLoader"].get("name"),
config["DataLoader"].get("aug", False),
config.get("DataLoader"),
)
scheduler = CustomScheduler(max_epoch=config["Trainer"]["max_epoch"])
assert config["Trainer"].get("name") in ("vat", "ada")
Trainer = VAT_Trainer if config["Trainer"]["name"].lower(
) == "vat" else AdaNetTrainer
trainer = Trainer(model=model,
labeled_loader=label_loader,
unlabeled_loader=unlabel_loader,
val_loader=val_loader,