def __init__(self):
self.best_accuracy = 0.0
# all data
self.data_train = CUBDataset.get_data_all(Config.data_root)
self.task_train = CUBDataset(self.data_train, Config.num_way,
Config.num_shot)
self.task_train_loader = DataLoader(self.task_train,
Config.batch_size,
True,
num_workers=Config.num_workers)
# model
self.matching_net = RunnerTool.to_cuda(Config.matching_net)
RunnerTool.to_cuda(self.matching_net.apply(RunnerTool.weights_init))
self.norm = Normalize(2)
# loss
self.loss = RunnerTool.to_cuda(nn.MSELoss())
# optim
self.matching_net_optim = torch.optim.Adam(
self.matching_net.parameters(), lr=Config.learning_rate)
self.matching_net_scheduler = MultiStepLR(self.matching_net_optim,
Config.train_epoch_lr,
gamma=0.5)
self.test_tool = FSLTestTool(self.matching_test,
data_root=Config.data_root,
num_way=Config.num_way,
num_shot=Config.num_shot,
episode_size=Config.episode_size,
test_episode=Config.test_episode,
transform=self.task_train.transform_test)
pass
def __init__(self):
# all data
self.data_train = OmniglotDataset.get_data_all(Config.data_root)
self.task_train = OmniglotDataset(self.data_train, Config.num_way,
Config.num_shot)
self.task_train_loader = DataLoader(self.task_train,
Config.batch_size,
True,
num_workers=Config.num_workers)
# model
self.matching_net = RunnerTool.to_cuda(
MatchingNet(hid_dim=64, z_dim=64))
RunnerTool.to_cuda(self.matching_net.apply(RunnerTool.weights_init))
self.norm = Normalize(2)
# loss
self.loss = RunnerTool.to_cuda(nn.MSELoss())
# optim
self.matching_net_optim = torch.optim.SGD(
self.matching_net.parameters(),
lr=Config.learning_rate,
momentum=0.9,
weight_decay=5e-4)
self.test_tool = FSLTestTool(self.matching_test,
data_root=Config.data_root,
num_way=Config.num_way_test,
num_shot=Config.num_shot,
episode_size=Config.episode_size,
test_episode=Config.test_episode,
transform=self.task_train.transform_test)
pass
def train(self):
Tools.print()
Tools.print("Training...")
for epoch in range(1, 1 + Config.train_epoch):
self.matching_net.train()
Tools.print()
all_loss = 0.0
for task_data, task_labels, task_index in tqdm(
self.task_train_loader):
task_data, task_labels = RunnerTool.to_cuda(
task_data), RunnerTool.to_cuda(task_labels)
# 1 calculate features
predicts = self.matching(task_data)
# 2 loss
loss = self.loss(predicts, task_labels)
all_loss += loss.item()
# 3 backward
self.matching_net.zero_grad()
loss.backward()
self.matching_net_optim.step()
###########################################################################
pass
###########################################################################
# print
Tools.print("{:6} loss:{:.3f} lr:{}".format(
epoch, all_loss / len(self.task_train_loader),
self.matching_net_scheduler.get_last_lr()))
self.matching_net_scheduler.step()
###########################################################################
###########################################################################
# Val
if epoch % Config.val_freq == 0:
Tools.print()
Tools.print("Test {} {} .......".format(
epoch, Config.model_name))
self.matching_net.eval()
val_accuracy = self.test_tool.val(episode=epoch,
is_print=True,
has_test=False)
if val_accuracy > self.best_accuracy:
self.best_accuracy = val_accuracy
torch.save(self.matching_net.state_dict(), Config.mn_dir)
Tools.print("Save networks for epoch: {}".format(epoch))
pass
pass
###########################################################################
pass
pass
def __init__(self):
self.adjust_learning_rate = Config.ic_adjust_learning_rate
# data
self.data_train = TieredImageNetICDataset.get_data_all(
Config.data_root)
self.tiered_imagenet_dataset = TieredImageNetICDataset(self.data_train)
self.ic_train_loader = DataLoader(self.tiered_imagenet_dataset,
Config.ic_batch_size,
shuffle=True,
num_workers=Config.num_workers)
self.ic_train_loader_eval = DataLoader(self.tiered_imagenet_dataset,
Config.ic_batch_size,
shuffle=False,
num_workers=Config.num_workers)
# IC
self.produce_class = ProduceClass(len(self.data_train),
Config.ic_out_dim, Config.ic_ratio)
self.produce_class.init()
# model
self.ic_model = RunnerTool.to_cuda(
ICResNet(Config.ic_resnet,
low_dim=Config.ic_out_dim,
modify_head=Config.ic_modify_head))
self.ic_model = RunnerTool.to_cuda(nn.DataParallel(self.ic_model))
cudnn.benchmark = True
RunnerTool.to_cuda(self.ic_model.apply(RunnerTool.weights_init))
self.ic_loss = RunnerTool.to_cuda(nn.CrossEntropyLoss())
self.ic_model_optim = torch.optim.SGD(self.ic_model.parameters(),
lr=Config.ic_learning_rate,
momentum=0.9,
weight_decay=5e-4)
# Eval
self.test_tool_ic = ICTestTool(
feature_encoder=None,
ic_model=self.ic_model,
data_root=Config.data_root,
batch_size=Config.ic_batch_size,
num_workers=Config.num_workers,
ic_out_dim=Config.ic_out_dim,
transform=self.ic_train_loader.dataset.transform_test,
k=Config.ic_knn)
pass
def __init__(self):
self.adjust_learning_rate = Config.adjust_learning_rate
# all data
self.data_train = OmniglotDataset.get_data_all(Config.data_root)
self.task_train = OmniglotDataset(self.data_train, Config.num_way, Config.num_shot)
self.task_train_loader = DataLoader(self.task_train, Config.batch_size, True, num_workers=Config.num_workers)
# IC
self.produce_class = ProduceClass(len(self.data_train), Config.ic_out_dim, Config.ic_ratio)
self.produce_class.init()
self.task_train.set_samples_class(self.produce_class.classes)
# model
self.matching_net = RunnerTool.to_cuda(Config.matching_net)
self.ic_model = RunnerTool.to_cuda(ICResNet(low_dim=Config.ic_out_dim, encoder=Config.ic_net))
self.norm = Normalize(2)
if Config.multi_gpu:
self.matching_net = RunnerTool.to_cuda(nn.DataParallel(self.matching_net))
cudnn.benchmark = True
pass
# RunnerTool.to_cuda(self.matching_net.apply(RunnerTool.weights_init))
# RunnerTool.to_cuda(self.ic_model.apply(RunnerTool.weights_init))
# optim
self.matching_net_optim = torch.optim.SGD(
self.matching_net.parameters(), lr=Config.learning_rate, momentum=0.9, weight_decay=5e-4)
self.ic_model_optim = torch.optim.SGD(
self.ic_model.parameters(), lr=Config.learning_rate, momentum=0.9, weight_decay=5e-4)
# loss
self.ic_loss = RunnerTool.to_cuda(nn.CrossEntropyLoss())
self.fsl_loss = RunnerTool.to_cuda(nn.MSELoss())
# Eval
self.test_tool_fsl = FSLTestTool(self.matching_test, data_root=Config.data_root,
num_way=Config.num_way_test, num_shot=Config.num_shot,
episode_size=Config.episode_size, test_episode=Config.test_episode,
transform=self.task_train.transform_fsl_test)
self.test_tool_ic = ICTestTool(feature_encoder=None, ic_model=self.ic_model,
data_root=Config.data_root, batch_size=Config.batch_size,
num_workers=Config.num_workers, ic_out_dim=Config.ic_out_dim,
transform=self.task_train_loader.dataset.transform_ic_test, k=20)
pass
def eval(self):
self.ic_model.eval()
with torch.no_grad():
ic_classes = np.zeros(shape=(len(self.tiered_imagenet_dataset), ),
dtype=np.int)
for image, label, idx in tqdm(self.ic_train_loader_eval):
ic_out_logits, ic_out_l2norm = self.ic_model(
RunnerTool.to_cuda(image))
ic_classes[idx] = np.argmax(ic_out_l2norm.cpu().numpy(),
axis=-1)
pass
return self.data_train, ic_classes
def __init__(self, data_train, classes):
# all data
self.data_train = data_train
self.task_train = TieredImageNetFSLDataset(self.data_train, classes,
Config.fsl_num_way,
Config.fsl_num_shot)
self.task_train_loader = DataLoader(self.task_train,
Config.fsl_batch_size,
True,
num_workers=Config.num_workers)
# model
self.matching_net = RunnerTool.to_cuda(Config.fsl_matching_net)
self.matching_net = RunnerTool.to_cuda(
nn.DataParallel(self.matching_net))
cudnn.benchmark = True
RunnerTool.to_cuda(self.matching_net.apply(RunnerTool.weights_init))
self.norm = Normalize(2)
# optim
self.matching_net_optim = torch.optim.Adam(
self.matching_net.parameters(), lr=Config.fsl_learning_rate)
self.matching_net_scheduler = MultiStepLR(self.matching_net_optim,
Config.fsl_lr_schedule,
gamma=1 / 3)
# loss
self.fsl_loss = RunnerTool.to_cuda(nn.MSELoss())
# Eval
self.test_tool_fsl = FSLTestTool(
self.matching_test,
data_root=Config.data_root,
num_way=Config.fsl_num_way,
num_shot=Config.fsl_num_shot,
episode_size=Config.fsl_episode_size,
test_episode=Config.fsl_test_episode,
transform=self.task_train.transform_test)
pass
def __init__(self):
self.best_accuracy = 0.0
self.adjust_learning_rate = Config.adjust_learning_rate
# all data
self.data_train = TieredImageNetDataset.get_data_all(Config.data_root)
self.task_train = TieredImageNetDataset(self.data_train, Config.num_way,
Config.num_shot, load_data=Config.load_data)
self.task_train_loader = DataLoader(self.task_train, Config.batch_size, True, num_workers=Config.num_workers)
# IC
self.produce_class = ProduceClass(len(self.data_train), Config.ic_out_dim, Config.ic_ratio)
self.produce_class.init()
self.task_train.set_samples_class(self.produce_class.classes)
self.task_train.set_samples_feature(self.produce_class.features)
# model
self.matching_net = RunnerTool.to_cuda(Config.matching_net)
self.ic_model = RunnerTool.to_cuda(ICResNet(low_dim=Config.ic_out_dim,
resnet=Config.resnet, modify_head=Config.modify_head))
self.norm = Normalize(2)
RunnerTool.to_cuda(self.matching_net.apply(RunnerTool.weights_init))
RunnerTool.to_cuda(self.ic_model.apply(RunnerTool.weights_init))
# optim
self.matching_net_optim = torch.optim.SGD(
self.matching_net.parameters(), lr=Config.learning_rate, momentum=0.9, weight_decay=5e-4)
self.ic_model_optim = torch.optim.SGD(
self.ic_model.parameters(), lr=Config.learning_rate, momentum=0.9, weight_decay=5e-4)
# loss
self.ic_loss = RunnerTool.to_cuda(nn.CrossEntropyLoss())
self.fsl_loss = RunnerTool.to_cuda(nn.MSELoss())
# Eval
self.test_tool_fsl = FSLTestTool(self.matching_test, data_root=Config.data_root,
num_way=Config.num_way, num_shot=Config.num_shot,
episode_size=Config.episode_size, test_episode=Config.test_episode,
transform=self.task_train.transform_test)
self.test_tool_ic = ICTestTool(feature_encoder=None, ic_model=self.ic_model, data_root=Config.data_root,
transform=self.task_train.transform_test, batch_size=Config.batch_size,
num_workers=Config.num_workers, ic_out_dim=Config.ic_out_dim, k=Config.knn,
load_data=Config.load_data)
pass
def train(self):
Tools.print()
Tools.print("Training...")
# Init Update
try:
self.matching_net.eval()
self.ic_model.eval()
Tools.print("Init label {} .......")
self.produce_class.reset()
for task_data, task_labels, task_index, task_ok in tqdm(self.task_train_loader):
ic_labels = RunnerTool.to_cuda(task_index[:, -1])
task_data, task_labels = RunnerTool.to_cuda(task_data), RunnerTool.to_cuda(task_labels)
ic_out_logits, ic_out_l2norm = self.ic_model(task_data[:, -1])
self.produce_class.cal_label(ic_out_l2norm, ic_labels)
pass
Tools.print("Epoch: {}/{}".format(self.produce_class.count, self.produce_class.count_2))
finally:
pass
best_accuracy = 0.0
for epoch in range(1, 1 + Config.train_epoch):
self.matching_net.train()
self.ic_model.train()
Tools.print()
mn_lr= self.adjust_learning_rate(self.matching_net_optim, epoch,
Config.first_epoch, Config.t_epoch, Config.learning_rate)
ic_lr = self.adjust_learning_rate(self.ic_model_optim, epoch,
Config.first_epoch, Config.t_epoch, Config.learning_rate)
Tools.print('Epoch: [{}] mn_lr={} ic_lr={}'.format(epoch, mn_lr, ic_lr))
self.produce_class.reset()
Tools.print(self.task_train.classes)
is_ok_total, is_ok_acc = 0, 0
all_loss, all_loss_fsl, all_loss_ic = 0.0, 0.0, 0.0
for task_data, task_labels, task_index, task_ok in tqdm(self.task_train_loader):
ic_labels = RunnerTool.to_cuda(task_index[:, -1])
task_data, task_labels = RunnerTool.to_cuda(task_data), RunnerTool.to_cuda(task_labels)
###########################################################################
# 1 calculate features
relations = self.matching(task_data)
ic_out_logits, ic_out_l2norm = self.ic_model(task_data[:, -1])
# 2
ic_targets = self.produce_class.get_label(ic_labels)
self.produce_class.cal_label(ic_out_l2norm, ic_labels)
# 3 loss
loss_fsl = self.fsl_loss(relations, task_labels)
loss_ic = self.ic_loss(ic_out_logits, ic_targets)
loss = loss_fsl + loss_ic
all_loss += loss.item()
all_loss_fsl += loss_fsl.item()
all_loss_ic += loss_ic.item()
# 4 backward
self.ic_model.zero_grad()
loss_ic.backward()
self.ic_model_optim.step()
self.matching_net.zero_grad()
loss_fsl.backward()
self.matching_net_optim.step()
# is ok
is_ok_acc += torch.sum(torch.cat(task_ok))
is_ok_total += torch.prod(torch.tensor(torch.cat(task_ok).shape))
###########################################################################
pass
###########################################################################
# print
Tools.print("{:6} loss:{:.3f} fsl:{:.3f} ic:{:.3f} ok:{:.3f}({}/{})".format(
epoch + 1, all_loss / len(self.task_train_loader),
all_loss_fsl / len(self.task_train_loader), all_loss_ic / len(self.task_train_loader),
int(is_ok_acc) / int(is_ok_total), is_ok_acc, is_ok_total, ))
Tools.print("Train: [{}] {}/{}".format(epoch, self.produce_class.count, self.produce_class.count_2))
###########################################################################
###########################################################################
# Val
if epoch % Config.val_freq == 0:
self.matching_net.eval()
self.ic_model.eval()
self.test_tool_ic.val(epoch=epoch)
val_accuracy = self.test_tool_fsl.val(episode=epoch, is_print=True)
if val_accuracy > best_accuracy:
best_accuracy = val_accuracy
torch.save(self.matching_net.state_dict(), Config.mn_dir)
torch.save(self.ic_model.state_dict(), Config.ic_dir)
Tools.print("Save networks for epoch: {}".format(epoch))
pass
pass
###########################################################################
pass
pass
def train(self):
Tools.print()
Tools.print("Training...")
best_accuracy = 0.0
for epoch in range(1, 1 + Config.fsl_train_epoch):
self.matching_net.train()
Tools.print()
all_loss, is_ok_total, is_ok_acc = 0.0, 0, 0
for task_data, task_labels, task_index, task_ok in tqdm(
self.task_train_loader):
task_data, task_labels = RunnerTool.to_cuda(
task_data), RunnerTool.to_cuda(task_labels)
###########################################################################
# 1 calculate features
relations = self.matching(task_data)
# 3 loss
loss = self.fsl_loss(relations, task_labels)
all_loss += loss.item()
# 4 backward
self.matching_net.zero_grad()
loss.backward()
self.matching_net_optim.step()
# is ok
is_ok_acc += torch.sum(torch.cat(task_ok))
is_ok_total += torch.prod(
torch.tensor(torch.cat(task_ok).shape))
###########################################################################
pass
###########################################################################
# print
Tools.print("{:6} loss:{:.3f} ok:{:.3f}({}/{}) lr:{}".format(
epoch, all_loss / len(self.task_train_loader),
int(is_ok_acc) / int(is_ok_total), is_ok_acc, is_ok_total,
self.matching_net_scheduler.get_last_lr()))
self.matching_net_scheduler.step()
###########################################################################
###########################################################################
# Val
if epoch % Config.fsl_val_freq == 0:
self.matching_net.eval()
val_accuracy = self.test_tool_fsl.val(episode=epoch,
is_print=True,
has_test=False)
if val_accuracy > best_accuracy:
best_accuracy = val_accuracy
torch.save(self.matching_net.state_dict(), Config.mn_dir)
Tools.print("Save networks for epoch: {}".format(epoch))
pass
pass
###########################################################################
pass
pass
def train(self):
Tools.print()
Tools.print("Training...")
best_accuracy = 0.0
# Init Update
try:
self.ic_model.eval()
Tools.print("Init label {} .......")
self.produce_class.reset()
with torch.no_grad():
for image, label, idx in tqdm(self.ic_train_loader):
image, idx = RunnerTool.to_cuda(image), RunnerTool.to_cuda(
idx)
ic_out_logits, ic_out_l2norm = self.ic_model(image)
self.produce_class.cal_label(ic_out_l2norm, idx)
pass
pass
Tools.print("Epoch: {}/{}".format(self.produce_class.count,
self.produce_class.count_2))
finally:
pass
for epoch in range(1, 1 + Config.ic_train_epoch):
self.ic_model.train()
Tools.print()
ic_lr = self.adjust_learning_rate(self.ic_model_optim, epoch,
Config.ic_first_epoch,
Config.ic_t_epoch,
Config.ic_learning_rate)
Tools.print('Epoch: [{}] ic_lr={}'.format(epoch, ic_lr))
all_loss = 0.0
self.produce_class.reset()
for image, label, idx in tqdm(self.ic_train_loader):
image, label, idx = RunnerTool.to_cuda(
image), RunnerTool.to_cuda(label), RunnerTool.to_cuda(idx)
###########################################################################
# 1 calculate features
ic_out_logits, ic_out_l2norm = self.ic_model(image)
# 2 calculate labels
ic_targets = self.produce_class.get_label(idx)
self.produce_class.cal_label(ic_out_l2norm, idx)
# 3 loss
loss = self.ic_loss(ic_out_logits, ic_targets)
all_loss += loss.item()
# 4 backward
self.ic_model.zero_grad()
loss.backward()
self.ic_model_optim.step()
###########################################################################
pass
###########################################################################
# print
Tools.print("{:6} loss:{:.3f}".format(
epoch, all_loss / len(self.ic_train_loader)))
Tools.print("Train: [{}] {}/{}".format(epoch,
self.produce_class.count,
self.produce_class.count_2))
###########################################################################
###########################################################################
# Val
if epoch % Config.ic_val_freq == 0:
self.ic_model.eval()
val_accuracy = self.test_tool_ic.val(epoch=epoch)
if val_accuracy > best_accuracy:
best_accuracy = val_accuracy
torch.save(self.ic_model.state_dict(), Config.ic_dir)
Tools.print("Save networks for epoch: {}".format(epoch))
pass
pass
###########################################################################
pass
pass