def get_data_loader(self, data_file, aug):
transform = self.trans_loader.get_composed_transform(aug)
dataset = SetDataset( data_file , self.batch_size, transform )
sampler = EpisodicBatchSampler(len(dataset), self.n_way, self.n_eposide )
data_loader_params = dict(batch_sampler = sampler, num_workers = 12, pin_memory = True)
data_loader = torch.utils.data.DataLoader(dataset, **data_loader_params)
return data_loader
def get_data_loader(self, data_file, aug): #parameters that would change on train/val set
transform = self.trans_loader.get_composed_transform(aug)
if isinstance(data_file, list):
dataset = MultiSetDataset( data_file , self.batch_size, transform )
sampler = MultiEpisodicBatchSampler(dataset.lens(), self.n_way, self.n_eposide )
else:
dataset = SetDataset( data_file , self.batch_size, transform )
sampler = EpisodicBatchSampler(len(dataset), self.n_way, self.n_eposide )
data_loader_params = dict(batch_sampler = sampler, num_workers=4)
data_loader = torch.utils.data.DataLoader(dataset, **data_loader_params)
return data_loader
def get_data_loader(self,
aug): # parameters that would change on train/val set
transform = self.trans_loader.get_composed_transform(aug)
dataset = SetDataset(self.data_file, self.dataset_dir, self.batch_size,
transform)
sampler = EpisodicBatchSampler(self.mode, len(dataset), self.n_way,
self.n_episode)
data_loader_params = dict(batch_sampler=sampler,
num_workers=8,
pin_memory=True)
data_loader = torch.utils.data.DataLoader(dataset,
**data_loader_params)
return data_loader
def get_data_loader(self, data_file, aug): #parameters that would change on train/val set
transform = self.trans_loader.get_composed_transform(aug)
if isinstance(data_file, list):
dataset = MultiSetDataset( data_file , self.batch_size, transform )# 包含多个(各个数据集关系数目之和)sub_dataloader,里面每个类别是一个Dataloader
sampler = MultiEpisodicBatchSampler(dataset.lens(), self.n_way, self.n_eposide )# dataset.lens()是个list 每个数据集的关系类别数目
else:
dataset = SetDataset( data_file , self.batch_size, transform )
# dataset 里面有1）标签列表cl_list 0～N-1, 2）源数据meta 3）sub_dataloader 里面是 每个类 对应的dataloader
# 4）sub_meta 每个类对应的样本, len(dataset)是标签数目
sampler = EpisodicBatchSampler(len(dataset), self.n_way, self.n_eposide )
data_loader_params = dict(batch_sampler = sampler, num_workers=4)
data_loader = torch.utils.data.DataLoader(dataset, **data_loader_params)
return data_loader
def get_data_loader(self, data_file,
aug): #parameters that would change on train/val set
transform = self.trans_loader.get_composed_transform(aug)
## Add transform for jigsaw puzzle
self.transform_patch_jigsaw = None
self.transform_jigsaw = None
if self.jigsaw:
if aug:
self.transform_jigsaw = transforms.Compose([
# transforms.Resize(256),
# transforms.CenterCrop(225),
## follow paper setting:
# transforms.Resize(255),
# transforms.CenterCrop(240),
## setting of my experiment before 0515
transforms.RandomResizedCrop(255, scale=(0.5, 1.0)),
transforms.RandomHorizontalFlip()
])
# transforms.ToTensor(),
# transforms.Normalize(mean=[0.485, 0.456, 0.406],
# std =[0.229, 0.224, 0.225])])
else:
self.transform_jigsaw = transforms.Compose([
# transforms.Resize(256),
# transforms.CenterCrop(225),])
transforms.RandomResizedCrop(225, scale=(0.5, 1.0))
])
# transforms.ToTensor(),
# transforms.Normalize(mean=[0.485, 0.456, 0.406],
# std =[0.229, 0.224, 0.225])])
self.transform_patch_jigsaw = transforms.Compose([
transforms.RandomCrop(64),
# transforms.Resize((75, 75), Image.BILINEAR),
transforms.Lambda(self.rgb_jittering),
transforms.ToTensor(),
# transforms.Normalize(mean=[0.485, 0.456, 0.406],
# std =[0.229, 0.224, 0.225])
])
dataset = SetDataset(data_file , self.batch_size, transform, jigsaw=self.jigsaw, \
transform_jigsaw=self.transform_jigsaw, transform_patch_jigsaw=self.transform_patch_jigsaw, \
rotation=self.rotation, isAircraft=self.isAircraft, grey=self.grey)
sampler = EpisodicBatchSampler(len(dataset), self.n_way,
self.n_eposide)
data_loader_params = dict(batch_sampler=sampler,
num_workers=NUM_WORKERS,
pin_memory=True)
data_loader = torch.utils.data.DataLoader(dataset,
**data_loader_params)
return data_loader
def get_data_loader(self, data_file, aug):
transform = self.trans_loader.get_composed_transform(aug)
if isinstance(data_file, list): # Multi domain
dataset = MultiSetDataset(data_file, self.batch_size, transform)
sampler = MultiEpisodicBatchSampler(dataset.lens(), self.n_way,
self.n_eposide)
else: # Single domain
dataset = SetDataset(data_file, self.batch_size, transform)
sampler = EpisodicBatchSampler(len(dataset), self.n_way,
self.n_eposide)
data_loader = torch.utils.data.DataLoader(dataset,
batch_sampler=sampler,
num_workers=4)
return data_loader
def get_data_loader(self,
data_file,
aug,
lang_dir=None,
normalize=True,
vocab=None,
adversary=None,
max_class=None,
max_img_per_class=None,
max_lang_per_class=None,
fixed_noise=None,
confound_noise=None,
confound_noise_class_weight=None
): #parameters that would change on train/val set
# TODO: FIXME
if fixed_noise:
transformers = [
self.trans_loader.get_composed_transform(
aug,
normalize=normalize,
confound_noise=confound_noise,
confound_noise_class_weight=confound_noise_class_weight)
for _ in range(100)
]
else:
# Use the same transformer
transform = self.trans_loader.get_composed_transform(
aug, normalize=normalize)
transformers = [transform for _ in range(100)]
dataset = SetDataset(self.name,
data_file,
self.batch_size,
transformers,
args=self.args,
lang_dir=lang_dir,
vocab=vocab,
adversary=adversary,
max_class=max_class,
max_img_per_class=max_img_per_class,
max_lang_per_class=max_lang_per_class)
sampler = EpisodicBatchSampler(len(dataset), self.n_way,
self.n_episode)
data_loader_params = dict(batch_sampler=sampler,
num_workers=self.args.n_workers,
pin_memory=self.args.pin_memory)
data_loader = torch.utils.data.DataLoader(dataset,
**data_loader_params)
return data_loader
def get_data_loader(self, aug=False):
transform = transforms.Compose([
transforms.Resize((self.image_size, self.image_size)),
transforms.ToTensor(),
transforms.Normalize((0.4914,0.4822,0.4465),(0.2023,0.1994,0.2010))
])
if isinstance(self.data_file, list):
dataset = MultiSetDataset(data_files=self.data_file, batch_size=self.batch_size, transform=transform)
sampler = MultiEpisodicBatchSampler(dataset.lens(), self.n_way, self.n_episode)
else:
dataset = SetDataset(data_file=self.data_file, batch_size=self.batch_size, transform=transform)
sampler = EpisodicBatchSampler(len(dataset), self.n_way, self.n_episode)
data_loader_params = dict(batch_sampler = sampler, num_workers=8)
data_loader = DataLoader(dataset, **data_loader_params)
return data_loader
def get_data_loader(self, data_file,
aug): #parameters that would change on train/val set
transform = self.trans_loader.get_composed_transform(aug)
dataset = SetDataset(data_file, self.batch_size, transform)
sampler = EpisodicBatchSampler(len(dataset), self.n_way,
self.n_eposide)
if sys.platform == "win32": # Note: windows system doesn't support num_workers multiple threads
data_loader_params = dict(batch_sampler=sampler, pin_memory=True)
elif sys.platform == "linux":
data_loader_params = dict(batch_sampler=sampler,
num_workers=8,
pin_memory=True)
else:
assert False, "Unknown OS!"
data_loader = torch.utils.data.DataLoader(dataset,
**data_loader_params)
return data_loader
def get_data_loader(
self,
data_file,
aug,
lang_dir=None,
normalize=True,
vocab=None,
max_class=None,
max_img_per_class=None,
max_lang_per_class=None,
):
transform = self.trans_loader.get_composed_transform(
aug, normalize=normalize)
dataset = SetDataset(
self.name,
data_file,
self.batch_size,
transform,
args=self.args,
lang_dir=lang_dir,
vocab=vocab,
max_class=max_class,
max_img_per_class=max_img_per_class,
max_lang_per_class=max_lang_per_class,
)
sampler = EpisodicBatchSampler(len(dataset), self.n_way,
self.n_episode)
data_loader_params = dict(
batch_sampler=sampler,
num_workers=self.args.n_workers,
pin_memory=True,
)
data_loader = torch.utils.data.DataLoader(dataset,
**data_loader_params)
return data_loader
def get_data_loader(self, data_file, aug,ifshuffle): #parameters that would change on train/val set
transform = self.trans_loader.get_composed_transform(aug)
dataset = SetDataset( data_file , transform )
data_loader_params = dict(batch_size = self.batch_size, num_workers = 12, shuffle=ifshuffle, pin_memory = True)
data_loader = torch.utils.data.DataLoader(dataset, **data_loader_params)
return data_loader
def get_data_loader(self, root='./filelists/tabula_muris', mode='train'): #parameters that would change on train/val set
dataset = SetDataset(root=root, mode=mode, min_samples=self.batch_size)
sampler = EpisodicBatchSampler(len(dataset), self.n_way, self.n_eposide )
data_loader_params = dict(batch_sampler = sampler, num_workers = 4, pin_memory = True)
data_loader = torch.utils.data.DataLoader(dataset, **data_loader_params)
return data_loader