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train_dcan.py
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train_dcan.py
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import os
import os.path as osp
from loss import *
from torch.utils.data import DataLoader
import random
import argparse
import os
import time
import torch
import torch.utils.data
import torch.nn.functional as F
import torch.nn as nn
import torch.optim as optim
import pre_process as prep
from pre_process import transforms
from data_list import ImageList
import lr_schedule
from logger import Logger
import numpy as np
from tensorboardX import SummaryWriter
import torch.backends.cudnn as cudnn
import warnings
import torchvision
from network import dcca_resnet50, dcca_resnet101, dcca_resnet152
from tqdm import tqdm
cudnn.benchmark = True
cudnn.deterministic = True
warnings.filterwarnings('ignore')
def image_classification_test(loader, base_net, classifier_layer, residual_layer1,
residual_layer2, test_10crop, config, num_iter):
start_test = True
with torch.no_grad():
if test_10crop:
iter_test = [iter(loader['test'][i]) for i in range(10)]
for i in range(len(loader['test'][0])):
data = [iter_test[j].next() for j in range(10)]
inputs = [data[j][0] for j in range(10)]
labels = data[0][1]
for j in range(10):
inputs[j] = inputs[j].cuda()
labels = labels
outputs = []
for j in range(10):
features_base = base_net(inputs[j])
features_residual1 = residual_layer1(features_base)
residual_total1 = features_base + features_residual1
outputs_old = classifier_layer(residual_total1)
outputs_residual = residual_layer2(outputs_old)
outputs_new = outputs_residual + outputs_old
outputs.append(nn.Softmax(dim=1)(outputs_new))
outputs = sum(outputs)
if start_test:
all_output = outputs.float().cpu()
all_label = labels.float()
start_test = False
else:
all_output = torch.cat((all_output, outputs.float().cpu()), 0)
all_label = torch.cat((all_label, labels.float()), 0)
else:
iter_test = iter(loader["test"])
for i in range(len(loader['test'])):
data = iter_test.next()
inputs = data[0]
labels = data[1]
inputs = inputs.cuda()
labels = labels.cuda()
features_base = base_net(inputs)
features_residual1 = residual_layer1(features_base)
residual_total1 = features_base + features_residual1
outputs_old = classifier_layer(residual_total1)
outputs_residual = residual_layer2(outputs_old)
outputs = outputs_residual + outputs_old
if start_test:
all_output = outputs.float().cpu()
all_label = labels.float().cpu()
start_test = False
else:
all_output = torch.cat((all_output, outputs.float().cpu()), 0)
all_label = torch.cat((all_label, labels.float().cpu()), 0)
_, predict = torch.max(all_output, 1)
accuracy = torch.sum(torch.squeeze(predict).float() == all_label).item() / float(all_label.size()[0])
if config['is_writer']:
config['writer'].add_scalars('test', {'test error': 1.0 - accuracy,
'acc': accuracy * 100.0},
num_iter)
return accuracy * 100.0
def train(config):
# pre-process training and test data
prep_dict = {'source': prep.image_train(**config['prep']['params']),
'target': prep.image_train(**config['prep']['params'])}
if config['prep']['test_10crop']:
prep_dict['test'] = prep.image_test_10crop(**config['prep']['params'])
else:
prep_dict['test'] = prep.image_test(**config['prep']['params'])
data_set = {}
dset_loaders = {}
data_config = config['data']
data_set['source'] = ImageList(open(data_config['source']['list_path']).readlines(),
transform=prep_dict['source'])
dset_loaders['source'] = torch.utils.data.DataLoader(data_set['source'],
batch_size=data_config['source']['batch_size'],
shuffle=True, num_workers=4, drop_last=True)
data_set['target'] = ImageList(open(data_config['target']['list_path']).readlines(),
transform=prep_dict['target'])
dset_loaders['target'] = torch.utils.data.DataLoader(data_set['target'],
batch_size=data_config['target']['batch_size'],
shuffle=True, num_workers=4, drop_last=True)
if config['prep']['test_10crop']:
data_set['test'] = [ImageList(open(data_config['test']['list_path']).readlines(),
transform=prep_dict['test'][i]) for i in range(10)]
dset_loaders['test'] = [torch.utils.data.DataLoader(dset, batch_size=data_config['test']['batch_size'],
shuffle=False, num_workers=4) for dset in data_set['test']]
else:
data_set['test'] = ImageList(open(data_config['test']['list_path']).readlines(), transform=prep_dict['test'])
dset_loaders['test'] = torch.utils.data.DataLoader(data_set['test'],
batch_size=data_config['test']['batch_size'],
shuffle=False, num_workers=4)
# set base network, classifier network, residual net
class_num = config['network']['params']['class_num']
net_config = config['network']
if net_config['name'] == '50':
base_network = dcca_resnet50()
elif net_config['name'] == '101':
base_network = dcca_resnet101()
elif net_config['name'] == '152':
base_network = dcca_resnet152()
else:
raise ValueError('base network %s not found!' % (net_config['name']))
classifier_layer = nn.Linear(2048, class_num)
# feature residual layer: two fully connected layers
residual_fc1 = nn.Linear(2048, 2048)
residual_bn1 = nn.BatchNorm1d(2048)
residual_fc2 = nn.Linear(2048, 128)
residual_bn2 = nn.BatchNorm1d(128)
residual_fc3 = nn.Linear(128, 2048)
classifier_layer.weight.data.normal_(0, 0.01)
classifier_layer.bias.data.fill_(0.0)
residual_fc1.weight.data.normal_(0, 0.005)
residual_fc1.bias.data.fill_(0.1)
residual_fc2.weight.data.normal_(0, 0.005)
residual_fc2.bias.data.fill_(0.1)
residual_fc3.weight.data.normal_(0, 0.005)
residual_fc3.bias.data.fill_(0.1)
feature_residual_layer = nn.Sequential(residual_fc2, nn.ReLU(), residual_fc3)
# class residual layer: two fully connected layers
residual_fc22 = nn.Linear(classifier_layer.out_features, classifier_layer.out_features)
residual_bn22 = nn.BatchNorm1d(classifier_layer.out_features)
residual_fc23 = nn.Linear(classifier_layer.out_features, classifier_layer.out_features)
residual_fc22.weight.data.normal_(0, 0.005)
residual_fc22.bias.data.fill_(0.1)
residual_fc23.weight.data.normal_(0, 0.005)
residual_fc23.bias.data.fill_(0.1)
class_residual_layer = nn.Sequential(residual_fc22, nn.ReLU(), residual_fc23)
base_network = base_network.cuda()
feature_residual_layer = feature_residual_layer.cuda()
classifier_layer = classifier_layer.cuda()
class_residual_layer = class_residual_layer.cuda()
softmax_layer = nn.Softmax().cuda()
# set optimizer
parameter_list = [
{'params': base_network.parameters(), 'lr_mult': 1, 'decay_mult': 2},
{'params': classifier_layer.parameters(), 'lr_mult': 10, 'decay_mult': 2},
{'params': feature_residual_layer.parameters(), 'lr_mult': 0.01, 'decay_mult': 2},
{'params': class_residual_layer.parameters(), 'lr_mult': 0.01, 'decay_mult': 2}
]
optimizer_config = config['optimizer']
optimizer = optimizer_config['type'](parameter_list, **(optimizer_config['optim_params']))
schedule_param = optimizer_config['lr_param']
lr_scheduler = lr_schedule.schedule_dict[optimizer_config['lr_type']]
# set loss
class_criterion = nn.CrossEntropyLoss().cuda()
loss_config = config['loss']
if 'params' not in loss_config:
loss_config['params'] = {}
# train
len_train_source = len(dset_loaders['source'])
len_train_target = len(dset_loaders['target'])
best_acc = 0.0
since = time.time()
for num_iter in tqdm(range(config['max_iter'])):
if num_iter % config['val_iter'] == 0 and num_iter != 0:
base_network.train(False)
classifier_layer.train(False)
feature_residual_layer.train(False)
class_residual_layer.train(False)
base_network = nn.Sequential(base_network)
classifier_layer = nn.Sequential(classifier_layer)
feature_residual_layer = nn.Sequential(feature_residual_layer)
class_residual_layer = nn.Sequential(class_residual_layer)
temp_acc = image_classification_test(loader=dset_loaders, base_net=base_network,
classifier_layer=classifier_layer,
residual_layer1=feature_residual_layer,
residual_layer2=class_residual_layer,
test_10crop=config['prep']['test_10crop'],
config=config, num_iter=num_iter
)
if temp_acc > best_acc:
best_acc = temp_acc
best_model = {'base': base_network.state_dict(), 'classifier': classifier_layer.state_dict(),
'feature_residual': feature_residual_layer.state_dict(),
'class_residual': class_residual_layer.state_dict()}
log_str = 'iter: {:d}, all_accu: {:.4f},\ttime: {:.4f}'.format(num_iter, temp_acc, time.time() - since)
config['logger'].logger.debug(log_str)
config['results'][num_iter].append(temp_acc)
# This has any effect only on modules such as Dropout or BatchNorm.
base_network.train(True)
classifier_layer.train(True)
feature_residual_layer.train(True)
class_residual_layer.train(True)
# freeze BN layers
for m in base_network.modules():
if isinstance(m, nn.BatchNorm2d):
m.training = False
m.weight.requires_grad = False
m.bias.requires_grad = False
# load data
if num_iter % len_train_source == 0:
iter_source = iter(dset_loaders['source'])
if num_iter % len_train_target == 0:
iter_target = iter(dset_loaders['target'])
inputs_source, labels_source = iter_source.next()
inputs_target, _ = iter_target.next()
batch_size = len(labels_source)
inputs_source, inputs_target, labels_source = inputs_source.cuda(), inputs_target.cuda(), labels_source.cuda()
optimizer = lr_scheduler(optimizer, num_iter / config['max_iter'], **schedule_param)
optimizer.zero_grad()
inputs = torch.cat((inputs_source, inputs_target), dim=0)
features_base = base_network(inputs)
features_residual = feature_residual_layer(features_base)
total_feature_residual = features_base + features_residual
# source classification loss with original features
output_base = classifier_layer(features_base)
classifier_loss = class_criterion(output_base[:batch_size, :], labels_source)
# target residual feature entropy loss
residual_output_base = classifier_layer(total_feature_residual)
output_residual = class_residual_layer(residual_output_base)
total_output_residual = residual_output_base + output_residual
softmax_output_base = softmax_layer(output_base)
total_softmax_residual = softmax_layer(total_output_residual)
entropy_loss = EntropyLoss(total_softmax_residual[batch_size:, :])
# alignment of L task-specific feature layers (Here, we have one layer)
transfer_loss = MMD(features_base[:batch_size, :],
total_feature_residual[batch_size:, :])
# alignment of softmax layer
transfer_loss += MMD(softmax_output_base[:batch_size, :],
total_softmax_residual[batch_size:, :],
kernel_num=1, fix_sigma=1.68)
source_labels_data = labels_source.data.float()
sum_reg_loss = 0
for k in range(class_num):
source_k_index = []
for index, source_k in enumerate(source_labels_data):
# find all indexes of k-th class source samples
if source_k == k:
source_k_index.append(index)
fea_reg_loss = 0
out_reg_loss = 0
if len(source_k_index) > 0:
# random subset indexes of source samples
source_rand_index = []
index = 0
for z in range(batch_size):
prob = random.random()
if prob < config['random_prob'] / class_num:
source_rand_index.append(index)
index += 1
if len(source_rand_index) > 0:
# source feature of k-th class
source_k_fea = features_base.index_select(0, torch.tensor(source_k_index, dtype=torch.long).cuda())
source_k_out = output_base.index_select(0, torch.tensor(source_k_index, dtype=torch.long).cuda())
# random selected source feature
source_rand_fea = total_feature_residual.index_select(0, torch.tensor(source_rand_index,
dtype=torch.long).cuda())
source_rand_out = total_output_residual.index_select(0, torch.tensor(source_rand_index,
dtype=torch.long).cuda())
fea_reg_loss = MMD_reg(source_k_fea, source_rand_fea)
out_reg_loss = MMD_reg(source_k_out, source_rand_out, kernel_num=1, fix_sigma=1.68)
sum_reg_loss += (fea_reg_loss + out_reg_loss)
total_loss = classifier_loss + \
config['loss']['alpha_off'] * (transfer_loss +
config['loss']['constant_off'] * sum_reg_loss) + \
config['loss']['beta_off'] * entropy_loss
total_loss.backward()
optimizer.step()
if num_iter % config['val_iter'] == 0:
config['logger'].logger.debug(
'class: {:.4f}\tmmd: {:.4f}\tmmd_seg: {:.4f}\tentropy: {:.4f}'.format(classifier_loss.item(),
transfer_loss.item(),
config['loss'][
'constant_off'] * sum_reg_loss,
entropy_loss.item() *
config['loss']['beta_off']))
if config['is_writer']:
config['writer'].add_scalars('train', {'class': classifier_loss.item(), 'mmd': transfer_loss.item(),
'mmd_seg': config['loss']['constant_off'] * sum_reg_loss.item(),
'entropy': config['loss']['beta_off'] * entropy_loss.item()},
num_iter)
if config['is_writer']:
config['writer'].close()
torch.save(best_model, osp.join(config['path']['model'], config['task'] + '_best_model.pth'))
return best_acc
def empty_dict(config):
config['results'] = {}
for i in range(config['max_iter'] // config['val_iter'] + 1):
key = config['val_iter'] * i
config['results'][key] = []
config['results']['best'] = []
def print_dict(config):
for i in range(config['max_iter'] // config['val_iter'] + 1):
key = config['val_iter'] * i
log_str = 'setting: {:d}, average: {:.4f}'.format(key, np.average(config['results'][key]))
config['logger'].logger.debug(log_str)
log_str = 'best, average: {:.4f}'.format(np.average(config['results']['best']))
config['logger'].logger.debug(log_str)
config['logger'].logger.debug('-' * 100)
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='Domain Conditioned Adaptation Network')
parser.add_argument('--seed', type=int, default=1, help='manual seed')
parser.add_argument('--gpu', type=str, nargs='?', default='1', help='device id to run')
parser.add_argument('--net', type=str, default='50', choices=['50', '101', '152'])
parser.add_argument('--data_set', default='home', choices=['home', 'domainnet', 'office'], help='data set')
parser.add_argument('--source_path', type=str, default='data/list/office/Art_65.txt', help='The source list')
parser.add_argument('--target_path', type=str, default='data/list/office/Clipart_65.txt', help='The target list')
parser.add_argument('--test_path', type=str, default='data/list/office/Clipart_65.txt', help='The test list')
parser.add_argument('--output_path', type=str, default='snapshot/', help='save ``log/scalar/model`` file path')
parser.add_argument('--task', type=str, default='ac', help='transfer task name')
parser.add_argument('--max_iter', type=int, default=20001, help='max iterations')
parser.add_argument('--val_iter', type=int, default=500, help='interval of two continuous test phase')
parser.add_argument('--lr', type=float, default=0.0001, help='learning rate (Default:1e-4')
parser.add_argument('--random_prob', type=float, default=0.8, help='the probability of random sampling')
parser.add_argument('--batch_size', type=int, default=36, help='mini batch size')
parser.add_argument('--beta_off', type=float, default=0.1, help='target entropy loss weight ')
parser.add_argument('--alpha_off', type=float, default=1.5, help='discrepancy loss weight')
parser.add_argument('--is_writer', action='store_true', help='If added to sh, record for tensorboard')
args = parser.parse_args()
# seed for everything
random.seed(args.seed)
torch.manual_seed(args.seed)
torch.cuda.manual_seed_all(args.seed)
np.random.seed(args.seed)
os.environ['PYTHONASHSEED'] = str(args.seed)
os.environ['CUDA_VISIBLE_DEVICES'] = args.gpu
config = {'seed': args.seed, 'gpu': args.gpu, 'max_iter': args.max_iter, 'val_iter': args.val_iter,
'random_prob': args.random_prob, 'data_set': args.data_set, 'task': args.task,
'prep': {'test_10crop': True, 'params': {'resize_size': 256, 'crop_size': 224}},
'network': {'name': args.net, 'params': {'resnet_name': args.net, 'class_num': 65}},
'optimizer': {'type': optim.SGD,
'optim_params': {'lr': args.lr, 'momentum': 0.9, 'weight_decay': 0.0005, 'nesterov': True},
'lr_type': 'inv', 'lr_param': {'lr': args.lr, 'gamma': 1.0, 'power': 0.75}},
'data': {
'source': {'list_path': args.source_path, 'batch_size': args.batch_size},
'target': {'list_path': args.target_path, 'batch_size': args.batch_size},
'test': {'list_path': args.test_path, 'batch_size': args.batch_size}},
'output_path': args.output_path + args.data_set,
'path': {'log': args.output_path + args.data_set + '/log/',
'scalar': args.output_path + args.data_set + '/scalar/',
'model': args.output_path + args.data_set + '/model/'},
'is_writer': args.is_writer
}
if config['data_set'] == 'home':
config['network']['params']['class_num'] = 65
elif config['data_set'] == 'domainnet':
config['network']['params']['class_num'] = 345
elif config['data_set'] == 'office':
config['network']['params']['class_num'] = 31
else:
raise ValueError('dataset %s not found!' % (config['data_set']))
config['loss'] = {'alpha_off': args.alpha_off,
'constant_off': 1 / config['network']['params']['class_num'],
'beta_off': args.beta_off}
if not os.path.exists(config['output_path']):
os.makedirs(config['output_path'])
os.makedirs(config['path']['log'])
os.makedirs(config['path']['scalar'])
os.makedirs(config['path']['model'])
if config['is_writer']:
config['writer'] = SummaryWriter(log_dir=config['path']['scalar'])
config['logger'] = Logger(logroot=config['path']['log'], filename=config['task'], level='debug')
config['logger'].logger.debug(str(config))
empty_dict(config)
config['results']['best'].append(train(config))
print_dict(config)