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no_aug.py
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import random
import torch, os, glob
from operator import itemgetter
import argparse, datetime
import numpy as np
import matplotlib.pyplot as plt
from torch.autograd import Variable
from torchinfo import summary
import torch.optim as optim
import torch.nn.functional as F
from model.dda import *
from utils.dataload import data_generator
from utils.write_csv import *
parser = argparse.ArgumentParser(description='Sequence Modeling')
parser.add_argument('--batch_size', type=int, default=256, metavar='N',
help='batch size (default: 256)')
parser.add_argument('--iterations', type=int, default=10000,
help='iteration (default: 10000)')
parser.add_argument('--lr', type=float, default=2e-3,
help='initial learning rate (default: 2e-3)')
parser.add_argument('--dataset', default='Crop',
help='UCR dataset (default: Crop)')
parser.add_argument('--da', default='identity',
help='Data Augmentation (default: identity)')
parser.add_argument('--gpu_id', type=int, default=0,
help='set gpu_id')
parser.add_argument('--seed', type=int, default=1111,
help='random seed')
args = parser.parse_args()
# fix random
seed = args.seed
if True: # set seed
np.random.seed(seed)
torch.manual_seed(seed) # fix the initial value of the network weight
torch.cuda.manual_seed(seed) # for cuda
torch.cuda.manual_seed_all(seed) # for multi-GPU
torch.backends.cudnn.deterministic = True # choose the determintic algorithm
dt = datetime.datetime.now()
now = "{:0=2}".format(dt.month) + "{:0=2}-".format(dt.day) + "{:0=2}".format(dt.hour) + "{:0=2}".format(dt.minute)
batch_size = args.batch_size
data_name = args.dataset
gpu_id = args.gpu_id
dataset_path = './dataset/UCRArchive_2018'
input_length, n_classes, NumOfTrain = get_length_numofclass(data_name)
z_size = 512 # f's size
input_channels = 1
seq_length = int(input_length / input_channels)
epochs = np.ceil(args.iterations * (batch_size / NumOfTrain)).astype(int)
data_len_after_cnn = int((((((input_length-2)/2)-2)/2)-2)/2)
steps = 0
da1, da2, da3, da4, da5 = args.da, "NA", "NA", "NA", "NA"
print(args, 'epochs:{}'.format(epochs))
train_loader, test_loader = data_generator(data_name, batch_size, da1, da2, da3, da4, da5, dataset_path)
ts_encoder1 = TSEncoder(data_len_after_cnn, z_size)
classifier = Classifier(n_classes, z_size)
ts_encoder1.cuda(gpu_id)
classifier.cuda(gpu_id)
lr = args.lr
optimizer = optim.Adam(
[{'params': ts_encoder1.parameters()},
{'params': classifier.parameters()},
], lr=lr, betas=(0.5, 0.999))
CE_loss = nn.CrossEntropyLoss()
def train(ep):
global steps, now
train_loss = 0.
correct = 0
ts_encoder1.train()
classifier.train()
for da1_data, _, _, _, _, target, _ in train_loader:
da1_data, target = da1_data.cuda(gpu_id).to(dtype=torch.float), target.cuda(gpu_id)
da1_data = da1_data.view(-1, input_channels, seq_length)
da1_data, target = Variable(da1_data), Variable(target)
z = ts_encoder1(da1_data)
y = classifier(z)
loss = CE_loss(y, target)
optimizer.zero_grad()
pred = y.data.max(1, keepdim=True)[1]
correct += pred.eq(target.data.view_as(pred)).cpu().sum()
loss.backward()
optimizer.step()
train_loss += loss
train_loss /= len(train_loader.dataset)
#print('Train set: Average loss: {:.8f}, Accuracy: {:>4}/{:<4} ({:>3.1f}%) Average Params: {}|{:.4f}, {}|{:.4f}'.format(
# train_loss, correct, len(train_loader.dataset), 100.*correct / len(train_loader.dataset), da1, params_mean, da2, 1-params_mean))
return train_loss, correct/len(train_loader.dataset)
def test(epoch):
global now
test_loss = 0.
correct = 0
ts_encoder1.eval()
classifier.eval()
with torch.no_grad():
for da1_data, _, _, _, _, target, _ in test_loader:
da1_data, target = da1_data.cuda(gpu_id).to(dtype=torch.float), target.cuda(gpu_id)
da1_data = da1_data.view(-1, input_channels, seq_length)
da1_data, target = Variable(da1_data), Variable(target)
z = ts_encoder1(da1_data)
y = classifier(z)
z_list = z if not 'z_list' in locals() else torch.cat([z_list, z])
target_list = target.to('cpu').detach().numpy() if not 'target_list' in locals() else np.concatenate([target_list, target.to('cpu').detach().numpy()])
_, predict = torch.max(y.data, 1)
test_correct = (predict == target).sum().item()
loss = CE_loss(y, target)
pred = y.data.max(1, keepdim=True)[1]
correct += pred.eq(target.data.view_as(pred)).cpu().sum()
pred_list = pred.to('cpu').detach().numpy() if not 'pred_list' in locals() else np.concatenate([pred_list, pred.to('cpu').detach().numpy()])
test_loss += loss
pred_list = np.array([item for l in pred_list for item in l ])
test_loss /= len(test_loader.dataset)
print(' Test set: Average loss: {:.8f}, Accuracy: {:>4}/{:<4} ({:>3.1f}%)'.format(
test_loss, correct, len(test_loader.dataset), 100.*correct / len(test_loader.dataset)))
return test_loss, correct / len(test_loader.dataset)
def test_model():
base_path = './result/No-Aug_{}_{}_{}'.format(data_name, args.da, epochs)
ts_encoder1.load_state_dict(torch.load(base_path+'/ts_encoder1.pth', map_location='cuda:0'))
classifier.load_state_dict(torch.load(base_path+'/classifier.pth', map_location='cuda:0'))
test(epochs)
exit(0)
if __name__ == "__main__":
#test_model()
best_loss, best_acc = 10e5, 0.
for epoch in range(1, epochs+1):
print('Epoch:{}/{}'.format(epoch, epochs))
train_loss, train_acc = train(epoch)
if epoch%25==0 or epoch==epochs or epoch==1:
test_loss, test_acc = test(epoch)
# save to csv file
detached_train_acc = train_acc.to('cpu').detach().numpy().tolist()
detached_train_loss = train_loss.to('cpu').detach().numpy().tolist()
detached_test_acc = test_acc.to('cpu').detach().numpy().tolist()
detached_test_loss = test_loss.to('cpu').detach().numpy().tolist()
update_csv_ts1(data_name, 'No-Aug', detached_train_acc, detached_train_loss, detached_test_acc, detached_test_loss, epoch, da1, now)
if epoch==epochs:
model_save_path = './result/No-Aug_{}_{}_{}/'.format(data_name, args.da, epoch)
if not os.path.exists(model_save_path):
os.makedirs(model_save_path)
torch.save(ts_encoder1.state_dict(), model_save_path+'ts_encoder1.pth')
torch.save(classifier.state_dict(), model_save_path+'classifier.pth')