A PyTorch implementation for paper Unsupervised Domain Adaptation by Backpropagation
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import os
from core.dann import train_dann
from core.test import eval
from models.model import AlexModel
from utils import get_data_loader, init_model, init_random_seed
class Config(object):
# params for path
dataset_root = os.path.expanduser(os.path.join('~', 'Datasets'))
model_root = os.path.expanduser(os.path.join('~', 'Models', 'pytorch-DANN'))
# params for datasets and data loader
batch_size = 32
# params for source dataset
src_dataset = "amazon31"
src_model_trained = True
src_classifier_restore = os.path.join(model_root, src_dataset + '-source-classifier-final.pt')
# params for target dataset
tgt_dataset = "webcam31"
tgt_model_trained = True
dann_restore = os.path.join(model_root, src_dataset + '-' + tgt_dataset + '-dann-final.pt')
# params for pretrain
num_epochs_src = 100
log_step_src = 5
save_step_src = 50
eval_step_src = 20
# params for training dann
## for office
num_epochs = 2000
log_step = 10 # iters
save_step = 500
eval_step = 5 # epochs
manual_seed = 8888
alpha = 0
# params for optimizing models
lr = 2e-4
params = Config()
# init random seed
init_random_seed(params.manual_seed)
# load dataset
src_data_loader = get_data_loader(params.src_dataset, params.dataset_root, params.batch_size)
tgt_data_loader = get_data_loader(params.tgt_dataset, params.dataset_root, params.batch_size)
# load dann model
dann = init_model(net=AlexModel(), restore=None)
# train dann model
print("Start training dann model.")
if not (dann.restored and params.dann_restore):
dann = train_dann(dann, params, src_data_loader, tgt_data_loader, tgt_data_loader)
# eval dann model
print("Evaluating dann for source domain")
eval(dann, src_data_loader)
print("Evaluating dann for target domain")
eval(dann, tgt_data_loader)
print('done')