FL-MGVN: Federated learning for anomaly detection using mixed gaussian variational self-encoding network

D Wu, Y Deng, M Li - Information processing & management, 2022 - Elsevier
Anomalous data are such data that deviate from a large number of normal data points, which
often have negative impacts on various systems. Current anomaly detection technology …

VAE-based deep SVDD for anomaly detection

Y Zhou, X Liang, W Zhang, L Zhang, X Song - Neurocomputing, 2021 - Elsevier
Anomaly detection is an essential task for different fields in the real world. The imbalanced
data and lack of labels make the task challenging. Deep learning models based on …

Self-supervised learning for anomaly detection with dynamic local augmentation

S Yoa, S Lee, C Kim, HJ Kim - IEEE Access, 2021 - ieeexplore.ieee.org
Anomaly detection is an important problem for recent advances in machine learning. To this
end, many attempts have emerged to detect unknown anomalies of the images by learning …

High-dimensional and large-scale anomaly detection using a linear one-class SVM with deep learning

SM Erfani, S Rajasegarar, S Karunasekera, C Leckie - Pattern Recognition, 2016 - Elsevier
High-dimensional problem domains pose significant challenges for anomaly detection. The
presence of irrelevant features can conceal the presence of anomalies. This problem, known …

Autoencoding binary classifiers for supervised anomaly detection

Y Yamanaka, T Iwata, H Takahashi, M Yamada… - PRICAI 2019: Trends in …, 2019 - Springer
Abstract We propose the Autoencoding Binary Classifiers (ABC), a novel supervised
anomaly detector based on the Autoencoder (AE). There are two main approaches in …

Deep multi-sphere support vector data description

Z Ghafoori, C Leckie - Proceedings of the 2020 SIAM International …, 2020 - SIAM
Deep learning is increasingly used for unsupervised feature extraction and anomaly
detection in big datasets. Most deep learning based anomaly detection techniques …

Layer-constrained variational autoencoding kernel density estimation model for anomaly detection

P Lv, Y Yu, Y Fan, X Tang, X Tong - Knowledge-Based Systems, 2020 - Elsevier
Unsupervised techniques typically rely on the probability density distribution of the data to
detect anomalies, where objects with low probability density are considered to be abnormal …

Unsupervised anomaly detection using variational auto-encoder based feature extraction

R Yao, C Liu, L Zhang, P Peng - 2019 IEEE International …, 2019 - ieeexplore.ieee.org
Anomaly detection is a key task in Prognostics and Health Management (PHM) system.
Specially, in most practical applications, the lack of labels often exists which makes the …

Variational LSTM enhanced anomaly detection for industrial big data

X Zhou, Y Hu, W Liang, J Ma… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
With the increasing population of Industry 4.0, industrial big data (IBD) has become a hotly
discussed topic in digital and intelligent industry field. The security problem existing in the …

adVAE: A self-adversarial variational autoencoder with Gaussian anomaly prior knowledge for anomaly detection

X Wang, Y Du, S Lin, P Cui, Y Shen, Y Yang - Knowledge-Based Systems, 2020 - Elsevier
Recently, deep generative models have become increasingly popular in unsupervised
anomaly detection. However, deep generative models aim at recovering the data distribution …