Learning representations from healthcare time series data for unsupervised anomaly detection

J Pereira, M Silveira - … international conference on big data and …, 2019 - ieeexplore.ieee.org
The amount of time series data generated in Healthcare is growing very fast and so is the
need for methods that can analyse these data, detect anomalies and provide meaningful …

Tadgan: Time series anomaly detection using generative adversarial networks

A Geiger, D Liu, S Alnegheimish… - … conference on big …, 2020 - ieeexplore.ieee.org
Time series anomalies can offer information relevant to critical situations facing various
fields, from finance and aerospace to the IT, security, and medical domains. However …

Time series anomaly detection with adversarial reconstruction networks

S Liu, B Zhou, Q Ding, B Hooi, Z Zhang… - … on Knowledge and …, 2022 - ieeexplore.ieee.org
Time series data naturally exist in many domains including medical data analysis,
infrastructure sensor monitoring, and motion tracking. However, a very small portion of …

Temporal convolutional autoencoder for unsupervised anomaly detection in time series

M Thill, W Konen, H Wang, T Bäck - Applied Soft Computing, 2021 - Elsevier
Learning temporal patterns in time series remains a challenging task up until today.
Particularly for anomaly detection in time series, it is essential to learn the underlying …

Daemon: Unsupervised anomaly detection and interpretation for multivariate time series

X Chen, L Deng, F Huang, C Zhang… - 2021 IEEE 37th …, 2021 - ieeexplore.ieee.org
In many complex systems, devices are typically monitored and generating massive
multivariate time series. However, due to the complex patterns and little useful labeled data …

Unsupervised anomaly detection in energy time series data using variational recurrent autoencoders with attention

J Pereira, M Silveira - 2018 17th IEEE international conference …, 2018 - ieeexplore.ieee.org
In the age of big data, time series are being generated in massive amounts. In the energy
field, smart grids are enabling a unprecedented data acquisition with the integration of …

Hybrid approach for anomaly detection in time series data

Z Ghrib, R Jaziri, R Romdhane - 2020 international joint …, 2020 - ieeexplore.ieee.org
Anomaly detection is an active research field which attracts the attention of many business
and research actors. It has led to several research projects depending on the nature of the …

Unsupervised representation learning and anomaly detection in ECG sequences

J Pereira, M Silveira - International Journal of Data Mining …, 2019 - inderscienceonline.com
While the big data revolution takes place, large amounts of electronic health records, such
as electrocardiograms (ECGs) and vital signs data, have become available. These signals …

Velc: A new variational autoencoder based model for time series anomaly detection

C Zhang, S Li, H Zhang, Y Chen - arXiv preprint arXiv:1907.01702, 2019 - arxiv.org
Anomaly detection is a classical but worthwhile problem, and many deep learning-based
anomaly detection algorithms have been proposed, which can usually achieve better …

Unsupervised anomaly detection approach for time-series in multi-domains using deep reconstruction error

T Amarbayasgalan, VH Pham, N Theera-Umpon… - Symmetry, 2020 - mdpi.com
Automatic anomaly detection for time-series is critical in a variety of real-world domains such
as fraud detection, fault diagnosis, and patient monitoring. Current anomaly detection …