def _make_loader(self, batch_size=1):
"""
读入数据集的根目录，摘取出训练集和测试集对应的文件路径
:return:
"""
input_root = self.input_root
ground_root = self.ground_root
path_dict = {
"img": input_root,
"label": ground_root,
}
input_data_paths = [path for path in os.listdir(input_root)]
training_set = [input_data_paths]
training_len = math.ceil(self.k_fold * len(input_data_paths))
self.joint_shuffle(training_set)
train_img_paths = training_set[0][:training_len]
test_img_paths = training_set[0][training_len:]
train_dataset = KaggleDataset(path_dict, train_img_paths, ground_root)
test_dataset = KaggleDataset(path_dict, test_img_paths, ground_root)
train_loader = torch.utils.data.DataLoader(train_dataset,
batch_size=batch_size)
test_loader = torch.utils.data.DataLoader(test_dataset,
batch_size=batch_size)
return train_loader, test_loader
def prepare_dataset(args, category=None):
if args.mode == 'train':
train_csv = re.sub('\.csv$', '', args.in_train_csv)
dataset_train = KaggleDataset(train_csv,
transform=Compose(),
img_folder=args.in_train_img,
category=category,
resize_scale=[128, 128])
return dataset_train
if args.mode == 'valid':
valid_csv = re.sub('\.csv$', '', args.in_valid_csv)
dataset_valid = KaggleDataset(valid_csv,
transform=Compose(),
img_folder=args.in_valid_img,
category=category,
resize_scale=[128, 128])
return dataset_valid
if args.mode == 'test':
test_csv = re.sub('\.csv$', '', args.in_test_csv)
dataset_test = KaggleDataset(test_csv,
transform=Compose(),
img_folder=args.in_test_img,
category=category,
resize_scale=[128, 128])
return dataset_test
def main(tocsv=False, save=False, mask=False, valid_train=False, toiou=False):
model_name = config['param']['model']
resize = not config['valid'].getboolean('pred_orig_size')
if model_name == 'unet_vgg16':
model = UNetVgg16(3, 1, fixed_vgg=True)
elif model_name == 'dcan':
model = DCAN(3, 1)
elif model_name == 'caunet':
model = CAUNet()
elif model_name == 'camunet':
model = CAMUNet()
else:
model = UNet()
if torch.cuda.is_available():
model = model.cuda()
# model = torch.nn.DataParallel(model).cuda()
# Sets the model in evaluation mode.
model.eval()
epoch = load_ckpt(model)
if epoch == 0:
print("Aborted: checkpoint not found!")
return
# prepare dataset
compose = Compose(augment=False, resize=resize)
data_dir = 'data/stage1_train' if valid_train else 'data/stage1_test'
dataset = KaggleDataset(data_dir, transform=compose)
iter = predict(model, dataset, compose, resize)
if tocsv:
with open('result.csv', 'w') as csvfile:
writer = csv.writer(csvfile)
writer.writerow(['ImageId', 'EncodedPixels'])
for uid, _, y, y_c, y_m, _, _, _, _ in iter:
for rle in prob_to_rles(y, y_c, y_m):
writer.writerow([uid, ' '.join([str(i) for i in rle])])
elif toiou and valid_train:
with open('iou.csv', 'w') as csvfile:
writer = csv.writer(csvfile)
writer.writerow(['ImageId', 'IoU'])
for uid, _, y, y_c, y_m, gt, _, _, _ in tqdm(iter):
iou = get_iou(y, y_c, y_m, gt)
writer.writerow([uid, iou])
else:
for uid, x, y, y_c, y_m, gt, gt_s, gt_c, gt_m in tqdm(iter):
if valid_train:
show_groundtruth(uid, x, y, y_c, y_m, gt, gt_s, gt_c, gt_m,
save)
elif mask:
save_mask(uid, y, y_c, y_m)
else:
show(uid, x, y, y_c, y_m, save)
def main(resume=True, n_epoch=None, learn_rate=None):
model_name = config['param']['model']
if learn_rate is None:
learn_rate = config['param'].getfloat('learn_rate')
width = config.getint(model_name, 'width')
weight_map = config['param'].getboolean('weight_map')
c = config['train']
log_name = c.get('log_name')
n_batch = c.getint('n_batch')
n_worker = c.getint('n_worker')
n_cv_epoch = c.getint('n_cv_epoch')
if n_epoch is None:
n_epoch = c.getint('n_epoch')
balance_group = c.getboolean('balance_group')
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
model = build_model(model_name)
model = model.to(device)
# define optimizer
optimizer = torch.optim.Adam(
filter(lambda p: p.requires_grad, model.parameters()),
lr=args.learn_rate,
weight_decay=1e-6
)
# dataloader workers are forked process thus we need a IPC manager to keep cache in same memory space
manager = Manager()
cache = manager.dict()
compose = Compose()
# prepare dataset
if os.path.exists('data/valid'):
# advance mode: use valid folder as CV
train_dataset = KaggleDataset('data/train', transform=compose, cache=cache)
valid_dataset = KaggleDataset('data/valid', transform=compose, cache=cache)
else:
# auto mode: split part of train dataset as CV
train_dataset = KaggleDataset('data/train', transform=compose, cache=cache, use_filter=True)
train_dataset, valid_dataset = train_dataset.split()
# decide whether to balance training set
if balance_group:
weights, ratio = train_dataset.class_weight()
# Len of weights is number of original epoch samples.
# After oversample balance, majority class will be under-sampled (least sampled)
# Multipling raito is to gain chance for each sample to be visited at least once in each epoch
sampler = WeightedRandomSampler(weights, int(len(weights) * ratio))
else:
sampler = RandomSampler(train_dataset)
# data loader
train_loader = DataLoader(
train_dataset,
sampler=sampler,
batch_size=n_batch,
num_workers=n_worker,
pin_memory=torch.cuda.is_available())
valid_loader = DataLoader(
valid_dataset,
shuffle=False,
batch_size=n_batch,
num_workers=n_worker)
# resume checkpoint
start_epoch = iou_tr = iou_cv = 0
if resume:
start_epoch = load_ckpt(model, optimizer)
if start_epoch == 0:
print('Grand new training ...')
# put model to GPU
if torch.cuda.device_count() > 1:
print("Let's use", torch.cuda.device_count(), "GPUs!")
model = nn.DataParallel(model)
# decide log directory name
log_dir = os.path.join(
'logs', log_name, '{}-{}'.format(model_name, width),
'ep_{},{}-lr_{}'.format(
start_epoch,
n_epoch + start_epoch,
learn_rate,
)
)
with SummaryWriter(log_dir) as writer:
if start_epoch == 0 and False:
# dump graph only for very first training, disable by default
dump_graph(model, writer, n_batch, width)
print('Training started...')
for epoch in range(start_epoch + 1, n_epoch + start_epoch + 1): # 1 base
iou_tr = train(train_loader, model, optimizer, epoch, writer)
if len(valid_dataset) > 0 and epoch % n_cv_epoch == 0:
with torch.no_grad():
iou_cv = valid(valid_loader, model, epoch, writer, len(train_loader))
save_ckpt(model, optimizer, epoch, iou_tr, iou_cv)
print('Training finished...')
def run_submit(args):
augment = ['null']
out_dir = args.out_dir + f'/{args.model_name}'
initial_checkpoint = args.initial_checkpoint
batch_size = args.batch_size
## setup out_dir
os.makedirs(out_dir +'/submit', exist_ok=True)
log = Logger()
log.open(out_dir+'/log.submit.txt',mode='a')
log.write('\n--- [START %s] %s\n\n' % (IDENTIFIER, '-' * 64))
log.write('\t%s\n' % COMMON_STRING)
log.write('\n')
log.write('\tSEED = %u\n' % SEED)
log.write('\t__file__ = %s\n' % __file__)
log.write('\tout_dir = %s\n' % out_dir)
log.write('\n')
log.write('submitting .... @ %s\n'%str(augment))
log.write('initial_checkpoint = %s\n'%initial_checkpoint)
log.write('\n')
if 1: #save
log.write('** dataset setting **\n')
files_train = [f'train_image_data_{fid}.feather' for fid in range(4)]
data = read_data(args.data_dir, files_train)
df = pd.read_csv(args.df_path)
valid_split = np.load(args.data_dir + '/valid_b_fold1_15985.npy').tolist()
valid_df = df[df['image_id'].isin(valid_split)]
test_dataset = KaggleDataset(
df = df,
data = data,
idx = valid_df.index.values,
augment = valid_augment,
)
log.write('\n')
## net
log.write('** net setting **\n')
if args.model_name == 'serex50':
net = Serex50_Net().cuda()
elif args.model_name == 'effnetb3':
net = EfficientNet_3().cuda()
else:
raise NotImplemented
net.load_state_dict(torch.load(initial_checkpoint, map_location=lambda storage, loc: storage), strict=True)
image_id, truth, probability = do_evaluate(net, test_dataset, batch_size, augment)
if 1: #save
write_list_to_file (out_dir + '/submit/image_id.txt',image_id)
write_pickle_to_file(out_dir + '/submit/probability.pickle', probability)
write_pickle_to_file(out_dir + '/submit/truth.pickle', truth)
if 1:
image_id = read_list_from_file(out_dir + '/submit/image_id.txt')
probability = read_pickle_from_file(out_dir + '/submit/probability.pickle')
truth = read_pickle_from_file(out_dir + '/submit/truth.pickle')
num_test= len(image_id)
if 1:
recall, avgerage_recall = compute_kaggle_metric(probability, truth)
log.write('avgerage_recall : %f\n'%(avgerage_recall))
for i,name in enumerate(TASK_NAME):
log.write('%28s %f\n'%(name,recall[i]))
log.write('\n')
def main(tocsv=False,
save=False,
mask=False,
valid_train=False,
toiou=False,
submit_folder=False):
model_name = config['param']['model']
resize = not config['valid'].getboolean('pred_orig_size')
if model_name == 'unet_vgg16':
model = UNetVgg16(3, 1, fixed_vgg=True)
elif model_name == 'dcan':
model = DCAN(3, 1)
elif model_name == 'caunet':
model = CAUNet()
elif model_name == 'camunet':
model = CAMUNet()
else:
model = UNet()
if torch.cuda.is_available():
model = model.cuda()
# model = torch.nn.DataParallel(model).cuda()
# Sets the model in evaluation mode.
model.eval()
epoch = load_ckpt(model)
if epoch == 0:
print("Aborted: checkpoint not found!")
return
# prepare dataset
compose = Compose(augment=False, resize=resize)
#data_dir = 'data/stage1_train' if valid_train else 'data/stage1_test'
#data_dir = 'data/stage1_train' if valid_train else '../bowl_classifier/stage2_test'
data_dir = 'data/stage1_train' if valid_train else config['param'][
'CSV_PATH']
print(data_dir)
data_dir = re.sub('\.csv', '', data_dir)
dataset = KaggleDataset(data_dir,
transform=compose,
img_folder=config['param']['img_folder'])
iter = predict(model, dataset, compose, resize)
if tocsv:
if valid_train:
print('Saving %s/train_result.csv... Done!' % submit_folder)
with open('%s/train_result.csv' % submit_folder, 'w') as csvfile:
writer = csv.writer(csvfile)
writer.writerow(['ImageId', 'EncodedPixels'])
for uid, _, y, y_c, y_m, _, _, _, _ in iter:
for rle in prob_to_rles(y, y_c, y_m):
writer.writerow([uid, ' '.join([str(i) for i in rle])])
else:
print('Saving %s/test_result.csv... Done!' % submit_folder)
with open('%s/test_result.csv' % submit_folder, 'w') as csvfile:
writer = csv.writer(csvfile)
writer.writerow(['ImageId', 'EncodedPixels'])
for uid, _, y, y_c, y_m, _, _, _, _ in iter:
for rle in prob_to_rles(y, y_c, y_m):
writer.writerow([uid, ' '.join([str(i) for i in rle])])
elif toiou and valid_train:
print('Saving %s/iou_train.csv...Done!' % submit_folder)
with open('%s/iou_train.csv' % submit_folder, 'w') as csvfile:
writer = csv.writer(csvfile)
writer.writerow(['ImageId', 'IoU'])
for uid, _, y, y_c, y_m, gt, _, _, _ in tqdm(iter):
iou = get_iou(y, y_c, y_m, gt)
writer.writerow([uid, iou])
else:
for uid, x, y, y_c, y_m, gt, gt_s, gt_c, gt_m in tqdm(iter):
if valid_train:
show_groundtruth(uid, x, y, y_c, y_m, gt, gt_s, gt_c, gt_m,
save)
elif mask:
save_mask(uid, y, y_c, y_m)
else:
show(uid, x, y, y_c, y_m, save)
if valid_train:
data_dir = 'data/stage1_valid'
if not os.path.exists(data_dir):
print(
'%s does not exist. It will not generate %s/iou_valid.csv\nBye bye!'
% (data_dir, submit_folder))
else:
dataset = KaggleDataset(data_dir, transform=compose)
iter = predict(model, dataset, compose, resize)
if toiou and valid_train:
print('Saving %s/iou_valid.csv... Done!' % submit_folder)
with open('%s/iou_valid.csv' % submit_folder, 'w') as csvfile:
writer = csv.writer(csvfile)
writer.writerow(['ImageId', 'IoU'])
for uid, _, y, y_c, y_m, gt, _, _, _ in tqdm(iter):
iou = get_iou(y, y_c, y_m, gt)
writer.writerow([uid, iou])
if torch.cuda.is_available():
os.environ["CUDA_DEVICE_ORDER"] = "PCI_BUS_ID"
os.environ['CUDA_VISIBLE_DEVICES'] = gpu
device = torch.device("cuda", int(gpu))
pos_weights = pos_weights.to(device)
if not os.path.exists(csv_output):
os.mkdir(csv_output)
# TODO: 替换为真正的变量后使用
model = RecognizeModel()
optimizer = torch.optim.Adam(model.parameters(), lr=1e-4)
writer = tensorboard.SummaryWriter(training_log_dir)
picker = DataPicker(path_dict["img"], path_dict["label"], k_fold)
loss_fn = nn.BCEWithLogitsLoss(pos_weight=pos_weights)
Dataset = KaggleDataset(path_dict)
DataLoader = None
iter_test_vals = []
iter_test_accuracy = []
model.to(device)
if not os.path.exists(model_output):
os.mkdir(model_output)
for iter in range(iteration):
train_loader, test_loader = picker.get_loader(batch_size=10)
temp_test_vals = []
temp_test_accuracy = []
start = 0
def main(args):
wandb.init(project="kaggle_cassava_leaf_disease_classification")
wandb.run.name = args.config
config = importlib.import_module(f"stage1.{args.config}")
wandb.save(f"configs/{args.config}.py")
os.makedirs(f"./result/{args.config}", exist_ok=True)
config.fold_num = args.fold_num
print(config.fold_num)
if config.use_prev_data:
df = pd.read_csv("./data/split_df.csv")
# # df = df_[~df_.image_id.isin(invalid_ids)].copy()
# df_20 = df.loc[(df["source"] == 2020)].copy().reset_index(drop=True)
# df_20["data_dir"] = "train_images"
df_20 = df.loc[(df["source"] == 2020)].copy().reset_index(drop=True)
df_20["data_dir"] = "train_images"
df_19_0 = df.loc[(df["source"] == 2019)
& (df["label"] == 0)].copy().reset_index(drop=True)
df_19_0["data_dir"] = "train/cbb/"
df_19_2 = df.loc[(df["source"] == 2019)
& (df["label"] == 2)].copy().reset_index(drop=True)
df_19_2["data_dir"] = "train/cgm/"
df_19_4 = df.loc[(df["source"] == 2019)
& (df["label"] == 4)].copy().reset_index(drop=True)
df_19_4["data_dir"] = "train/healthy/"
df = pd.concat([df_20, df_19_0, df_19_2, df_19_4],
axis=0).reset_index(drop=True)
# df = pd.concat([df_20, df_19_0, df_19_2, df_19_4], axis=0).reset_index(drop=True)
else:
df = pd.read_csv("./data/train.csv")
# df = df_[~df_.image_id.isin(invalid_ids)].copy()
df["kfold"] = -1
df = df.sample(frac=1).reset_index(drop=True)
y = df["label"].values
skf = StratifiedKFold(n_splits=5)
for (fold_num), (train_index, val_index) in enumerate(skf.split(X=df,
y=y)):
df.loc[df.iloc[val_index].index, "kfold"] = fold_num
train_df = df.loc[df["kfold"] != args.fold_num].reset_index(
drop=True).copy()
valid_df = df.loc[df["kfold"] == args.fold_num].reset_index(
drop=True).copy()
sampler = None
if config.upsampling:
target = train_df.label
class_sample_count = np.unique(target, return_counts=True)[1]
class_sample_count[0] *= 1
class_sample_count[1] *= 1
class_sample_count[2] *= 1
class_sample_count[3] *= 0.7
class_sample_count[4] *= 1
weight = 1. / class_sample_count
samples_weight = weight[target]
samples_weight = torch.from_numpy(samples_weight)
sampler = torch.utils.data.WeightedRandomSampler(
samples_weight, len(samples_weight))
print("finish data setting")
print(train_df.head())
print(valid_df.head())
train_dataset = KaggleDataset(
df=train_df,
transforms=config.train_transforms,
preprocessing=config.preprocessing,
mode="train",
)
validation_dataset = KaggleDataset(
df=valid_df,
transforms=config.valid_transforms,
preprocessing=config.preprocessing,
mode="val",
)
train_loader = DataLoader(
train_dataset,
sampler=sampler,
batch_size=config.batch_size,
pin_memory=True,
num_workers=4,
)
valid_loader = DataLoader(
validation_dataset,
batch_size=config.batch_size,
pin_memory=True,
num_workers=4,
)
print("model setting")
if config.resume_dir is None:
if "efficientnet" in config.net_type:
net = MODEL_LIST["effcientnet"](net_type=config.net_type,
pretrained=True,
bn=config.bn)
elif "vit" in config.net_type:
net = MODEL_LIST["vit"](net_type=config.net_type, pretrained=True)
elif "res" in config.net_type:
net = MODEL_LIST["resnet"](net_type=config.net_type,
pretrained=True)
elif "hrnet" in config.net_type:
net = net = MODEL_LIST["hrnet"](net_type=config.net_type,
pretrained=True)
else:
net = MODEL_LIST["pretrained_enet"](
net_type=config.net_type,
pretrained_path=
f"./result/{config.resume_dir}/{config.resume_dir}_fold_{config.fold_num}/{config.resume_dir}_fold_{config.fold_num}_last-checkpoint.bin"
)
# if torch.cuda.device_count() > 1:
# net = torch.nn.DataParallel(net, device_ids=[0,1,2,3])
# config.lr = config.lr * torch.cuda.device_count()
net = net.to(device)
wandb.watch(net, log="all")
runner = PyTorchTrainer(model=net,
device=device,
config=config,
fold_num=args.fold_num)
if config.resume:
print("load model")
runner.load(
f"./result/{config.dir}/{config.dir}_fold_{config.fold_num}/{config.dir}_fold_{config.fold_num}_last-checkpoint.bin"
)
runner.fit(train_loader=train_loader, validation_loader=valid_loader)
def main(ckpt, tocsv=False, save=False, mask=False, target='test', toiou=False):
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
# load one or more checkpoint
models = []
for fn in ckpt or [None]:
# load model
model = load_ckpt(filepath=fn)
if not model:
print("Aborted: checkpoint {} not found!".format(fn))
return
# Sets the model in evaluation mode.
model.eval()
# put model to GPU
if torch.cuda.device_count() > 1:
print("Let's use", torch.cuda.device_count(), "GPUs!")
model = nn.DataParallel(model)
model = model.to(device)
# append to model list
models.append(model)
resize = not config['valid'].getboolean('pred_orig_size')
compose = Compose(augment=False, resize=resize)
# decide which dataset to pick sample
data_dir = os.path.join('data', target)
if target == 'test':
dataset = KaggleDataset(data_dir, transform=compose)
elif os.path.exists('data/valid'):
# advance mode: use valid folder as CV
dataset = KaggleDataset(data_dir, transform=compose)
else:
# auto mode: split part of train dataset as CV
dataset = KaggleDataset('data/train', transform=compose, use_filter=True)
if target == 'train':
dataset, _ = dataset.split()
elif target == 'valid':
_, dataset = dataset.split()
# iterate dataset and inference each sample
ious = []
writer = csvfile = None
for data in tqdm(dataset):
with torch.no_grad():
uid, y, y_c, y_m = inference(data, models, resize)
x, gt, gt_s, gt_c, gt_m = unpack_data(data, compose, resize)
if tocsv:
if writer is None:
csvfile = open('result.csv', 'w')
writer = csv.writer(csvfile)
writer.writerow(['ImageId', 'EncodedPixels'])
for rle in prob_to_rles(y, y_c, y_m):
writer.writerow([uid, ' '.join([str(i) for i in rle])])
elif toiou:
assert target != 'test'
if writer is None:
csvfile = open('iou.csv', 'w')
writer = csv.writer(csvfile)
writer.writerow(['ImageId', 'IoU'])
iou = get_iou(y, y_c, y_m, gt)
writer.writerow([uid, iou])
ious.append(iou)
elif mask:
save_mask(uid, y, y_c, y_m)
elif target == 'test':
show(uid, x, y, y_c, y_m, save)
else: # train or valid
show_groundtruth(uid, x, y, y_c, y_m, gt, gt_s, gt_c, gt_m, save)
# end of for-loop
if csvfile is not None:
csvfile.close()
if toiou:
print('\nIoU Metrics:\n mean: {0:.4f}\t std: {1:.4f}\t max: {2:.4f}\t min: {3:.4f}\t count: {4}\n'
.format(np.mean(ious), np.std(ious), np.max(ious), np.min(ious), len(ious)))
map_location=lambda storage, loc: storage)
net2.load_state_dict(state_dict, strict=True)
moving_average(net, net2, 1. / (i + 2))
## dataset ----------------------------------------
files_train = [f'train_image_data_{fid}.feather' for fid in range(4)]
data = read_data(args.data_dir, files_train)
df = pd.read_csv(args.df_path)
train_split = np.load(args.data_dir + '/train_b_fold1_184855.npy').tolist()
train_df = df[df['image_id'].isin(train_split)]
train_dataset = KaggleDataset(
df=df,
data=data,
idx=train_df.index.values,
augment=train_augment if args.use_gridmask else valid_augment,
)
train_loader = DataLoader(train_dataset,
sampler=RandomSampler(train_dataset),
batch_size=args.batch_size,
drop_last=True,
num_workers=4,
pin_memory=True,
collate_fn=null_collate)
net.cuda()
bn_update(train_loader, net)
torch.save(net.state_dict(),
args.out_dir + f'/{args.model_name}/' + output_name)
# print('id_ ' + id_ + '\t' + f_content[id_]) # debug
fn.write(f_content[id_])
fn.close()
# _ _ ____ ____ _ _____ _____ ____ ____ __ __
# | | | | | _ \ | _ \ / \ |_ _| | ____| / ___| / ___| \ \ / /
# | | | | | |_) | | | | | / _ \ | | | _| _____ | | \___ \ \ \ / /
# | |_| | | __/ | |_| | / ___ \ | | | |___ |_____| | |___ ___) | \ V /
# \___/ |_| |____/ /_/ \_\ |_| |_____| \____| |____/ \_/
#
CSV_FILE = re.sub('\.csv','',CSV_OUT_PATH)
dataset_test = KaggleDataset(CSV_FILE,transform=Compose(), img_folder= TEST_IMG_DIR, resize_scale=[128,128])
confidence_alert = 0
valid_idx = range(dataset_test.__len__())
valid_loader = DataLoader(dataset_test, sampler=SubsetRandomSampler(valid_idx),batch_size=4,num_workers=2)
# network
net = VGG('VGG16')
print(net)
net.cuda()
net.eval()
net.load_state_dict(torch.load(MODEL_IN_PATH))
invert_majorlabel = {v:k for k,v in dataset_test.majorlabels.items()}
for i, data in enumerate(valid_loader, 0):
def main(resume=True, n_epoch=None, learn_rate=None):
model_name = config['param']['model']
cv_ratio = config['param'].getfloat('cv_ratio')
if learn_rate is None:
learn_rate = config['param'].getfloat('learn_rate')
width = config[model_name].getint('width')
weight_map = config['param'].getboolean('weight_map')
c = config['train']
log_name = c.get('log_name')
n_batch = c.getint('n_batch')
n_worker = c.getint('n_worker')
n_ckpt_epoch = c.getint('n_ckpt_epoch')
if n_epoch is None:
n_epoch = c.getint('n_epoch')
# initialize model
if model_name == 'unet_vgg16':
model = UNetVgg16(3, 1, fixed_vgg=True)
elif model_name == 'dcan':
model = DCAN(3, 1)
elif model_name == 'caunet':
model = CAUNet()
elif model_name == 'camunet':
model = CAMUNet()
else:
model = UNet()
if torch.cuda.is_available():
model = model.cuda()
# model = torch.nn.DataParallel(model).cuda()
# define optimizer
optimizer = torch.optim.Adam(
filter(lambda p: p.requires_grad, model.parameters()),
lr=args.learn_rate,
weight_decay=1e-6
)
# dataloader workers are forked process thus we need a IPC manager to keep cache in same memory space
manager = Manager()
cache = manager.dict()
# prepare dataset and loader
dataset = KaggleDataset('data/stage1_train', transform=Compose(), cache=cache)
train_idx, valid_idx = dataset.split()
train_loader = DataLoader(
dataset, sampler=SubsetRandomSampler(train_idx),
batch_size=n_batch,
num_workers=n_worker,
pin_memory=torch.cuda.is_available())
valid_loader = DataLoader(
dataset, sampler=SubsetRandomSampler(valid_idx),
batch_size=n_batch,
num_workers=n_worker)
# resume checkpoint
start_epoch = 0
if resume:
start_epoch = load_ckpt(model, optimizer)
if start_epoch == 0:
print('Grand new training ...')
# decide log directory name
log_dir = os.path.join(
'logs', log_name, '{}-{}'.format(model_name, width),
'ep_{},{}-lr_{}'.format(
start_epoch,
n_epoch + start_epoch,
learn_rate,
)
)
with SummaryWriter(log_dir) as writer:
if start_epoch == 0 and False:
# dump graph only for very first training, disable by default
dump_graph(model, writer, n_batch, width)
print('Training started...')
for epoch in range(start_epoch, n_epoch + start_epoch):
train(train_loader, model, optimizer, epoch, writer)
if cv_ratio > 0 and epoch % 3 == 2:
valid(valid_loader, model, epoch, writer, len(train_loader))
# save checkpoint per n epoch
if epoch % n_ckpt_epoch == n_ckpt_epoch - 1:
save_ckpt(model, optimizer, epoch+1)
print('Training finished...')
def run_train(args):
out_dir = args.out_dir + '/' + args.model_name
use_gridmask = args.use_gridmask
initial_checkpoint = args.initial_checkpoint
if args.scheduler_name == 'null':
schduler = NullScheduler(lr=0.001)
else:
schduler = CyclicScheduler0(min_lr=0.00001, max_lr=0.00005, period=750, ratio=1 )
iter_accum = 1
batch_size = args.batch_size
# set-up directories
for f in ['checkpoint'] : os.makedirs(out_dir +'/'+f, exist_ok=True)
log = Logger()
log.open(out_dir+'/log.train.txt',mode='a')
log.write('\n--- [START %s] %s\n\n' % (IDENTIFIER, '-' * 64))
log.write('\t%s\n' % COMMON_STRING)
log.write('\n')
log.write('\tSEED = %u\n' % SEED)
log.write('\t__file__ = %s\n' % __file__)
log.write('\tout_dir = %s\n' % out_dir)
log.write('\n')
## dataset ----------------------------------------
log.write('** dataset setting **\n')
files_train = [f'train_image_data_{fid}.feather' for fid in range(4)]
data = read_data(args.data_dir, files_train)
df = pd.read_csv(args.df_path)
train_split = np.load(args.data_dir + '/train_b_fold1_184855.npy').tolist()
valid_split = np.load(args.data_dir + '/valid_b_fold1_15985.npy').tolist()
train_df = df[df['image_id'].isin(train_split)]
valid_df = df[df['image_id'].isin(valid_split)]
train_dataset = KaggleDataset(
df = df,
data = data,
idx = train_df.index.values,
augment = train_augment if use_gridmask else valid_augment,
)
train_loader = DataLoader(
train_dataset,
sampler = RandomSampler(train_dataset),
batch_size = batch_size,
drop_last = True,
num_workers = 4,
pin_memory = True,
collate_fn = null_collate
)
valid_dataset = KaggleDataset(
df = df,
data = data,
idx = valid_df.index.values,
augment = valid_augment,
)
valid_loader = DataLoader(
valid_dataset,
sampler = SequentialSampler(valid_dataset),
batch_size = batch_size,
drop_last = False,
num_workers = 4,
pin_memory = True,
collate_fn = null_collate
)
assert(len(train_dataset)>=batch_size)
log.write('batch_size = %d\n'%(batch_size))
log.write('\n')
## net ----------------------------------------
log.write('** net setting **\n')
if args.model_name == 'serex50':
net = Serex50_Net().cuda()
elif args.model_name == 'effnetb3':
net = EfficientNet_3().cuda()
else:
raise NotImplemented
log.write('\tinitial_checkpoint = %s\n' % initial_checkpoint)
if initial_checkpoint is not None:
state_dict = torch.load(initial_checkpoint, map_location=lambda storage, loc: storage)
net.load_state_dict(state_dict,strict=True)
else:
if args.model_name == 'serex50':
net.load_pretrain(is_print=False)
else:
pass
log.write('net=%s\n'%(type(net)))
log.write('\n')
if args.optimizer_name == 'AdamW':
optimizer = torch.optim.AdamW(filter(lambda p: p.requires_grad, net.parameters()),lr=schduler(0), weight_decay=1e-4)
else:
optimizer = torch.optim.SGD(filter(lambda p: p.requires_grad, net.parameters()), lr=schduler(0), momentum=0.0, weight_decay = 1e-4)
num_iters = 3000*1000
iter_smooth = 50
iter_log = 250
iter_valid = 500
iter_save = [0, num_iters-1]\
+ list(range(0, num_iters, 1000))#1*1000
start_iter = 0
start_epoch= 0
rate = 0
if initial_checkpoint is not None:
initial_optimizer = initial_checkpoint.replace('_model.pth','_optimizer.pth')
if os.path.exists(initial_optimizer):
checkpoint = torch.load(initial_optimizer)
start_iter = checkpoint['iter' ]
start_epoch = checkpoint['epoch']
optimizer.load_state_dict(checkpoint['optimizer'])
pass
log.write('optimizer\n %s\n'%(optimizer))
log.write('schduler\n %s\n'%(schduler))
log.write('\n')
## start training here! ##############################################
log.write('** start training here! **\n')
log.write(' batch_size=%d, iter_accum=%d\n'%(batch_size,iter_accum))
log.write(' experiment = %s\n' % str(__file__.split('/')[-2:]))
log.write(' |----------------------- VALID------------------------------------|------- TRAIN/BATCH -----------\n')
log.write('rate iter epoch | kaggle | loss acc | loss | time \n')
log.write('----------------------------------------------------------------------------------------------------------------------\n')
def message(rate, iter, epoch, kaggle, valid_loss, train_loss, batch_loss, mode='print'):
if mode==('print'):
asterisk = ' '
loss = batch_loss
if mode==('log'):
asterisk = '*' if iter in iter_save else ' '
loss = train_loss
text = \
'%0.5f %5.1f%s %4.1f | '%(rate, iter/1000, asterisk, epoch,) +\
'%0.4f : %0.4f %0.4f %0.4f | '%(kaggle[1],*kaggle[0]) +\
'%4.4f, %4.4f, %4.4f : %4.4f, %4.4f, %4.4f | '%(*valid_loss,) +\
'%4.4f, %4.4f, %4.4f |'%(*loss,) +\
'%s' % (time_to_str((timer() - start_timer),'min'))
return text
kaggle = (0,0,0,0)
valid_loss = np.zeros(6,np.float32)
train_loss = np.zeros(3,np.float32)
batch_loss = np.zeros_like(train_loss)
iter = 0
i = 0
start_timer = timer()
while iter<num_iters:
sum_train_loss = np.zeros_like(train_loss)
sum_train = np.zeros_like(train_loss)
optimizer.zero_grad()
for t, (input, truth, infor) in enumerate(train_loader):
input, truth, shuffled_truth, lam = cutmix(input, truth,alpha=0.3)
batch_size = len(infor)
iter = i + start_iter
epoch = (iter-start_iter)*batch_size/len(train_dataset) + start_epoch
if (iter % iter_valid==0):
valid_loss, kaggle = do_valid(net, valid_loader, out_dir) #
pass
if (iter % iter_log==0):
print('\r',end='',flush=True)
log.write(message(rate, iter, epoch, kaggle, valid_loss, train_loss, batch_loss, mode='log'))
log.write('\n')
if iter in iter_save:
torch.save({
'optimizer': optimizer.state_dict(),
'iter' : iter,
'epoch' : epoch,
}, out_dir +'/checkpoint/%08d_optimizer.pth'%(iter))
if iter!=start_iter:
torch.save(net.state_dict(),out_dir +'/checkpoint/%08d_model.pth'%(iter))
pass
# learning rate schduler -------------
lr = schduler(iter)
if lr<0 : break
adjust_learning_rate(optimizer, lr)
rate = get_learning_rate(optimizer)
net.train()
input = input.cuda()
truth = [t.cuda() for t in truth]
shuffled_truth = [t.cuda() for t in shuffled_truth]
logit = net(input)
probability = logit_to_probability(logit)
loss = cutmix_criterion(logit, truth, shuffled_truth, lam)
((loss[0]+loss[1]+loss[2] )/iter_accum).backward()
if (iter % iter_accum)==0:
optimizer.step()
optimizer.zero_grad()
loss = [l.item() for l in loss]
l = np.array([ *loss, ])*batch_size
n = np.array([ 1, 1, 1 ])*batch_size
batch_loss = l/(n+1e-8)
sum_train_loss += l
sum_train += n
if iter%iter_smooth == 0:
train_loss = sum_train_loss/(sum_train+1e-12)
sum_train_loss[...] = 0
sum_train[...] = 0
print('\r',end='',flush=True)
print(message(rate, iter, epoch, kaggle, valid_loss, train_loss, batch_loss, mode='print'), end='',flush=True)
i=i+1
pass #-- end of one data loader --
pass #-- end of all iterations --
log.write('\n')
def main():
# wandb.init(project="kaggle_cassava_leaf_disease_classification")
# wandb.run.name = args.config
# wandb.save(f"configs/{args.config}.py")
os.makedirs(f"./checkpoint/{config.dir}", exist_ok=True)
config.fold_num = args.fold_num
print(config.fold_num)
invalid_ids = ['274726002.jpg',
'9224019.jpg',
'159654644.jpg',
'199112616.jpg',
'226533928.jpg',
'262902341.jpg',
'269713568.jpg',
'384390206.jpg',
'390601409.jpg',
'421035788.jpg',
'457405364.jpg',
'600736721.jpg',
'580111608.jpg',
'616718743.jpg',
'695438825.jpg',
'723564013.jpg',
'826231979.jpg',
'847847826.jpg',
'927165736.jpg',
'1004389140.jpg',
'1008244905.jpg',
'1338159402.jpg',
'1339403533.jpg',
'1366430957.jpg',
'9224019.jpg',
'4269208386.jpg',
'4239074071.jpg',
'3810809174.jpg',
'3652033201.jpg',
'3609350672.jpg',
'3609986814.jpg',
'3477169212.jpg',
'3435954655.jpg',
'3425850136.jpg',
'3251960666.jpg',
'3252232501.jpg',
'3199643560.jpg',
'3126296051.jpg',
'3040241097.jpg',
'2981404650.jpg',
'2925605732.jpg',
'2839068946.jpg',
'2698282165.jpg',
'2604713994.jpg',
'2415837573.jpg',
'2382642453.jpg',
'2321669192.jpg',
'2320471703.jpg',
'2278166989.jpg',
'2276509518.jpg',
'2262263316.jpg',
'2182500020.jpg',
'2139839273.jpg',
'2084868828.jpg',
'1848686439.jpg',
'1689510013.jpg',
'1359893940.jpg']
if config.use_prev_data:
df = pd.read_csv("./data/merged.csv")
df = df[~df.image_id.isin(invalid_ids)]
# df_20 = df.loc[(df["source"] == 2020)].copy().reset_index(drop=True)
# df_20["data_dir"] = "train_images"
df_20 = df.loc[(df["source"] == 2020) & (df["label"] != 3)].copy().reset_index(drop=True)
df_20["data_dir"] = "train_images"
df_20_3 = df.loc[(df["source"] == 2020) & (df["label"] == 3)].copy().reset_index(drop=True)
df_20_3 = df_20_3.sample(frac=0.7)
df_20_3["data_dir"] = "train_images"
df_19_0 = df.loc[(df["source"] == 2019) & (df["label"] == 0)].copy().reset_index(drop=True)
df_19_0["data_dir"] = "train/cbb/"
df_19_2 = df.loc[(df["source"] == 2019) & (df["label"] == 2)].copy().reset_index(drop=True)
df_19_2["data_dir"] = "train/cgm/"
df_19_4 = df.loc[(df["source"] == 2019) & (df["label"] == 4)].copy().reset_index(drop=True)
df_19_4["data_dir"] = "train/healthy/"
df = pd.concat([df_20, df_20_3, df_19_0, df_19_2, df_19_4], axis=0).reset_index(drop=True).sample(frac=0.2)
# df = pd.concat([df_20, df_19_0, df_19_2, df_19_4], axis=0).reset_index(drop=True)
else:
df = pd.read_csv("./data/train.csv")
df["kfold"] = -1
df = df.sample(frac=1).reset_index(drop=True)
y = df["label"].values
skf = StratifiedKFold(n_splits=5)
for (fold_num), (train_index, val_index) in enumerate(skf.split(X=df, y=y)):
df.loc[df.iloc[val_index].index, "kfold"] = fold_num
train_df = df.loc[df["kfold"] != args.fold_num].reset_index(drop=True).copy()
valid_df = df.loc[df["kfold"] == args.fold_num].reset_index(drop=True).copy()
print("finish data setting")
print(train_df.head())
print(valid_df.head())
train_dataset = KaggleDataset(
df=train_df,
transforms=config.train_transforms,
preprocessing=config.preprocessing,
mode="train",
ind=False,
)
validation_dataset = KaggleDataset(
df=valid_df,
transforms=config.valid_transforms,
preprocessing=config.preprocessing,
mode="val",
ind=False,
)
train_loader = DataLoader(
train_dataset,
# sampler=BalanceClassSampler(labels=train_dataset.get_labels(), mode="upsampling"),
batch_size=45,
pin_memory=True,
num_workers=4,
)
valid_loader = DataLoader(
validation_dataset,
batch_size=32,
pin_memory=True,
num_workers=4,
)
print("model setting")
s_net = CassavaNet(net_type=config.net_type, pretrained=True, bn=config.bn)
t_net = MODEL_LIST["effcientnet"](net_type="tf_efficientnet_b4_ns", pretrained=True, bn=False)
ch = torch.load(chs[args.fold_num])
t_net.load_state_dict(ch["model_state_dict"], strict=True)
t_net = t_net.cuda()
t_net.eval()
optimizer, scheduler = get_optimizer(s_net, config.optimizer_name, config.optimizer_params,
config.scheduler_name, config.scheduler_params, config.n_epochs)
criterion = SoftTarget(T=4.0).cuda()
# wandb.watch(net, log="all")
logname = f"checkpoint/{config.dir}/" + s_net.__class__.__name__ + \
'_' + "stage2_" + f'{args.fold_num}.csv'
if not os.path.exists(logname):
with open(logname, 'w') as logfile:
logwriter = csv.writer(logfile, delimiter=',')
logwriter.writerow(
['epoch', 'train loss', 'train acc', 'test loss', 'test acc'])
start_epoch=0
s_net = s_net.to(device)
for epoch in range(start_epoch, config.n_epochs):
print("lr: ", optimizer.param_groups[0]['lr'])
if epoch < config.freeze_bn_epoch:
print("freeze_batch_norm")
s_net.freeze_batchnorm_stats()
train_loss, train_acc = train(epoch, train_loader, t_net, s_net, criterion, optimizer)
test_loss, test_acc = test(epoch, valid_loader, t_net, s_net, criterion)
with open(logname, 'a') as logfile:
logwriter = csv.writer(logfile, delimiter=',')
logwriter.writerow([epoch, train_loss, train_acc, test_loss, test_acc])
scheduler.step()