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This commit is contained in:
Jan Kowalczyk
2024-06-28 11:36:46 +02:00
parent d33c6b1e16
commit 71f9662022
40 changed files with 2938 additions and 1260 deletions
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291
Deep-SAD-PyTorch/src/baseline_ocsvm.py
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@@ -14,41 +14,127 @@ from datasets.main import load_dataset
# Settings
################################################################################
@click.command()
@click.argument('dataset_name', type=click.Choice(['mnist', 'fmnist', 'cifar10', 'arrhythmia', 'cardio', 'satellite',
'satimage-2', 'shuttle', 'thyroid']))
@click.argument('xp_path', type=click.Path(exists=True))
@click.argument('data_path', type=click.Path(exists=True))
@click.option('--load_config', type=click.Path(exists=True), default=None,
help='Config JSON-file path (default: None).')
@click.option('--load_model', type=click.Path(exists=True), default=None,
help='Model file path (default: None).')
@click.option('--ratio_known_normal', type=float, default=0.0,
help='Ratio of known (labeled) normal training examples.')
@click.option('--ratio_known_outlier', type=float, default=0.0,
help='Ratio of known (labeled) anomalous training examples.')
@click.option('--ratio_pollution', type=float, default=0.0,
help='Pollution ratio of unlabeled training data with unknown (unlabeled) anomalies.')
@click.option('--seed', type=int, default=-1, help='Set seed. If -1, use randomization.')
@click.option('--kernel', type=click.Choice(['rbf', 'linear', 'poly']), default='rbf', help='Kernel for the OC-SVM')
@click.option('--nu', type=float, default=0.1, help='OC-SVM hyperparameter nu (must be 0 < nu <= 1).')
@click.option('--hybrid', type=bool, default=False,
help='Train OC-SVM on features extracted from an autoencoder. If True, load_ae must be specified.')
@click.option('--load_ae', type=click.Path(exists=True), default=None,
help='Model file path to load autoencoder weights (default: None).')
@click.option('--n_jobs_dataloader', type=int, default=0,
help='Number of workers for data loading. 0 means that the data will be loaded in the main process.')
@click.option('--normal_class', type=int, default=0,
help='Specify the normal class of the dataset (all other classes are considered anomalous).')
@click.option('--known_outlier_class', type=int, default=1,
help='Specify the known outlier class of the dataset for semi-supervised anomaly detection.')
@click.option('--n_known_outlier_classes', type=int, default=0,
help='Number of known outlier classes.'
'If 0, no anomalies are known.'
'If 1, outlier class as specified in --known_outlier_class option.'
'If > 1, the specified number of outlier classes will be sampled at random.')
def main(dataset_name, xp_path, data_path, load_config, load_model, ratio_known_normal, ratio_known_outlier,
ratio_pollution, seed, kernel, nu, hybrid, load_ae, n_jobs_dataloader, normal_class, known_outlier_class,
n_known_outlier_classes):
@click.argument(
"dataset_name",
type=click.Choice(
[
"mnist",
"fmnist",
"cifar10",
"arrhythmia",
"cardio",
"satellite",
"satimage-2",
"shuttle",
"thyroid",
]
),
)
@click.argument("xp_path", type=click.Path(exists=True))
@click.argument("data_path", type=click.Path(exists=True))
@click.option(
"--load_config",
type=click.Path(exists=True),
default=None,
help="Config JSON-file path (default: None).",
)
@click.option(
"--load_model",
type=click.Path(exists=True),
default=None,
help="Model file path (default: None).",
)
@click.option(
"--ratio_known_normal",
type=float,
default=0.0,
help="Ratio of known (labeled) normal training examples.",
)
@click.option(
"--ratio_known_outlier",
type=float,
default=0.0,
help="Ratio of known (labeled) anomalous training examples.",
)
@click.option(
"--ratio_pollution",
type=float,
default=0.0,
help="Pollution ratio of unlabeled training data with unknown (unlabeled) anomalies.",
)
@click.option(
"--seed", type=int, default=-1, help="Set seed. If -1, use randomization."
)
@click.option(
"--kernel",
type=click.Choice(["rbf", "linear", "poly"]),
default="rbf",
help="Kernel for the OC-SVM",
)
@click.option(
"--nu",
type=float,
default=0.1,
help="OC-SVM hyperparameter nu (must be 0 < nu <= 1).",
)
@click.option(
"--hybrid",
type=bool,
default=False,
help="Train OC-SVM on features extracted from an autoencoder. If True, load_ae must be specified.",
)
@click.option(
"--load_ae",
type=click.Path(exists=True),
default=None,
help="Model file path to load autoencoder weights (default: None).",
)
@click.option(
"--n_jobs_dataloader",
type=int,
default=0,
help="Number of workers for data loading. 0 means that the data will be loaded in the main process.",
)
@click.option(
"--normal_class",
type=int,
default=0,
help="Specify the normal class of the dataset (all other classes are considered anomalous).",
)
@click.option(
"--known_outlier_class",
type=int,
default=1,
help="Specify the known outlier class of the dataset for semi-supervised anomaly detection.",
)
@click.option(
"--n_known_outlier_classes",
type=int,
default=0,
help="Number of known outlier classes."
"If 0, no anomalies are known."
"If 1, outlier class as specified in --known_outlier_class option."
"If > 1, the specified number of outlier classes will be sampled at random.",
)
def main(
dataset_name,
xp_path,
data_path,
load_config,
load_model,
ratio_known_normal,
ratio_known_outlier,
ratio_pollution,
seed,
kernel,
nu,
hybrid,
load_ae,
n_jobs_dataloader,
normal_class,
known_outlier_class,
n_known_outlier_classes,
):
"""
(Hybrid) One-Class SVM for anomaly detection.
@@ -64,74 +150,86 @@ def main(dataset_name, xp_path, data_path, load_config, load_model, ratio_known_
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger()
logger.setLevel(logging.INFO)
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
log_file = xp_path + '/log.txt'
formatter = logging.Formatter(
"%(asctime)s - %(name)s - %(levelname)s - %(message)s"
)
log_file = xp_path + "/log.txt"
file_handler = logging.FileHandler(log_file)
file_handler.setLevel(logging.INFO)
file_handler.setFormatter(formatter)
logger.addHandler(file_handler)
# Print paths
logger.info('Log file is %s.' % log_file)
logger.info('Data path is %s.' % data_path)
logger.info('Export path is %s.' % xp_path)
logger.info("Log file is %s." % log_file)
logger.info("Data path is %s." % data_path)
logger.info("Export path is %s." % xp_path)
# Print experimental setup
logger.info('Dataset: %s' % dataset_name)
logger.info('Normal class: %d' % normal_class)
logger.info('Ratio of labeled normal train samples: %.2f' % ratio_known_normal)
logger.info('Ratio of labeled anomalous samples: %.2f' % ratio_known_outlier)
logger.info('Pollution ratio of unlabeled train data: %.2f' % ratio_pollution)
logger.info("Dataset: %s" % dataset_name)
logger.info("Normal class: %d" % normal_class)
logger.info("Ratio of labeled normal train samples: %.2f" % ratio_known_normal)
logger.info("Ratio of labeled anomalous samples: %.2f" % ratio_known_outlier)
logger.info("Pollution ratio of unlabeled train data: %.2f" % ratio_pollution)
if n_known_outlier_classes == 1:
logger.info('Known anomaly class: %d' % known_outlier_class)
logger.info("Known anomaly class: %d" % known_outlier_class)
else:
logger.info('Number of known anomaly classes: %d' % n_known_outlier_classes)
logger.info("Number of known anomaly classes: %d" % n_known_outlier_classes)
# If specified, load experiment config from JSON-file
if load_config:
cfg.load_config(import_json=load_config)
logger.info('Loaded configuration from %s.' % load_config)
logger.info("Loaded configuration from %s." % load_config)
# Print OC-SVM configuration
logger.info('OC-SVM kernel: %s' % cfg.settings['kernel'])
logger.info('Nu-paramerter: %.2f' % cfg.settings['nu'])
logger.info('Hybrid model: %s' % cfg.settings['hybrid'])
logger.info("OC-SVM kernel: %s" % cfg.settings["kernel"])
logger.info("Nu-paramerter: %.2f" % cfg.settings["nu"])
logger.info("Hybrid model: %s" % cfg.settings["hybrid"])
# Set seed
if cfg.settings['seed'] != -1:
random.seed(cfg.settings['seed'])
np.random.seed(cfg.settings['seed'])
torch.manual_seed(cfg.settings['seed'])
torch.cuda.manual_seed(cfg.settings['seed'])
if cfg.settings["seed"] != -1:
random.seed(cfg.settings["seed"])
np.random.seed(cfg.settings["seed"])
torch.manual_seed(cfg.settings["seed"])
torch.cuda.manual_seed(cfg.settings["seed"])
torch.backends.cudnn.deterministic = True
logger.info('Set seed to %d.' % cfg.settings['seed'])
logger.info("Set seed to %d." % cfg.settings["seed"])
# Use 'cpu' as device for OC-SVM
device = 'cpu'
torch.multiprocessing.set_sharing_strategy('file_system') # fix multiprocessing issue for ubuntu
logger.info('Computation device: %s' % device)
logger.info('Number of dataloader workers: %d' % n_jobs_dataloader)
device = "cpu"
torch.multiprocessing.set_sharing_strategy(
"file_system"
) # fix multiprocessing issue for ubuntu
logger.info("Computation device: %s" % device)
logger.info("Number of dataloader workers: %d" % n_jobs_dataloader)
# Load data
dataset = load_dataset(dataset_name, data_path, normal_class, known_outlier_class, n_known_outlier_classes,
ratio_known_normal, ratio_known_outlier, ratio_pollution,
random_state=np.random.RandomState(cfg.settings['seed']))
dataset = load_dataset(
dataset_name,
data_path,
normal_class,
known_outlier_class,
n_known_outlier_classes,
ratio_known_normal,
ratio_known_outlier,
ratio_pollution,
random_state=np.random.RandomState(cfg.settings["seed"]),
)
# Log random sample of known anomaly classes if more than 1 class
if n_known_outlier_classes > 1:
logger.info('Known anomaly classes: %s' % (dataset.known_outlier_classes,))
logger.info("Known anomaly classes: %s" % (dataset.known_outlier_classes,))
# Initialize OC-SVM model
ocsvm = OCSVM(cfg.settings['kernel'], cfg.settings['nu'], cfg.settings['hybrid'])
ocsvm = OCSVM(cfg.settings["kernel"], cfg.settings["nu"], cfg.settings["hybrid"])
# If specified, load model parameters from already trained model
if load_model:
ocsvm.load_model(import_path=load_model, device=device)
logger.info('Loading model from %s.' % load_model)
logger.info("Loading model from %s." % load_model)
# If specified, load model autoencoder weights for a hybrid approach
if hybrid and load_ae is not None:
ocsvm.load_ae(dataset_name, model_path=load_ae)
logger.info('Loaded pretrained autoencoder for features from %s.' % load_ae)
logger.info("Loaded pretrained autoencoder for features from %s." % load_ae)
# Train model on dataset
ocsvm.train(dataset, device=device, n_jobs_dataloader=n_jobs_dataloader)
@@ -140,35 +238,56 @@ def main(dataset_name, xp_path, data_path, load_config, load_model, ratio_known_
ocsvm.test(dataset, device=device, n_jobs_dataloader=n_jobs_dataloader)
# Save results and configuration
ocsvm.save_results(export_json=xp_path + '/results.json')
cfg.save_config(export_json=xp_path + '/config.json')
ocsvm.save_results(export_json=xp_path + "/results.json")
cfg.save_config(export_json=xp_path + "/config.json")
# Plot most anomalous and most normal test samples
indices, labels, scores = zip(*ocsvm.results['test_scores'])
indices, labels, scores = zip(*ocsvm.results["test_scores"])
indices, labels, scores = np.array(indices), np.array(labels), np.array(scores)
idx_all_sorted = indices[np.argsort(scores)] # from lowest to highest score
idx_normal_sorted = indices[labels == 0][np.argsort(scores[labels == 0])] # from lowest to highest score
idx_normal_sorted = indices[labels == 0][
np.argsort(scores[labels == 0])
] # from lowest to highest score
if dataset_name in ('mnist', 'fmnist', 'cifar10'):
if dataset_name in ("mnist", "fmnist", "cifar10"):
if dataset_name in ('mnist', 'fmnist'):
if dataset_name in ("mnist", "fmnist"):
X_all_low = dataset.test_set.data[idx_all_sorted[:32], ...].unsqueeze(1)
X_all_high = dataset.test_set.data[idx_all_sorted[-32:], ...].unsqueeze(1)
X_normal_low = dataset.test_set.data[idx_normal_sorted[:32], ...].unsqueeze(1)
X_normal_high = dataset.test_set.data[idx_normal_sorted[-32:], ...].unsqueeze(1)
X_normal_low = dataset.test_set.data[idx_normal_sorted[:32], ...].unsqueeze(
1
)
X_normal_high = dataset.test_set.data[
idx_normal_sorted[-32:], ...
].unsqueeze(1)
if dataset_name == 'cifar10':
X_all_low = torch.tensor(np.transpose(dataset.test_set.data[idx_all_sorted[:32], ...], (0, 3, 1, 2)))
X_all_high = torch.tensor(np.transpose(dataset.test_set.data[idx_all_sorted[-32:], ...], (0, 3, 1, 2)))
X_normal_low = torch.tensor(np.transpose(dataset.test_set.data[idx_normal_sorted[:32], ...], (0, 3, 1, 2)))
if dataset_name == "cifar10":
X_all_low = torch.tensor(
np.transpose(
dataset.test_set.data[idx_all_sorted[:32], ...], (0, 3, 1, 2)
)
)
X_all_high = torch.tensor(
np.transpose(
dataset.test_set.data[idx_all_sorted[-32:], ...], (0, 3, 1, 2)
)
)
X_normal_low = torch.tensor(
np.transpose(
dataset.test_set.data[idx_normal_sorted[:32], ...], (0, 3, 1, 2)
)
)
X_normal_high = torch.tensor(
np.transpose(dataset.test_set.data[idx_normal_sorted[-32:], ...], (0, 3, 1, 2)))
np.transpose(
dataset.test_set.data[idx_normal_sorted[-32:], ...], (0, 3, 1, 2)
)
)
plot_images_grid(X_all_low, export_img=xp_path + '/all_low', padding=2)
plot_images_grid(X_all_high, export_img=xp_path + '/all_high', padding=2)
plot_images_grid(X_normal_low, export_img=xp_path + '/normals_low', padding=2)
plot_images_grid(X_normal_high, export_img=xp_path + '/normals_high', padding=2)
plot_images_grid(X_all_low, export_img=xp_path + "/all_low", padding=2)
plot_images_grid(X_all_high, export_img=xp_path + "/all_high", padding=2)
plot_images_grid(X_normal_low, export_img=xp_path + "/normals_low", padding=2)
plot_images_grid(X_normal_high, export_img=xp_path + "/normals_high", padding=2)
if __name__ == '__main__':
if __name__ == "__main__":
main()