A graph embedded in graph framework with dual-sequence input for efficient anomaly detection of complex equipment under insufficient samples

H Yan, F Li, J Chen, Z Liu, J Wang, Y Feng… - Reliability Engineering & …, 2023 - Elsevier
Real-time anomaly detection is essential for the safe launch of some sophisticated
equipment, such as liquid rocket engines (LRE), in order to head off disasters. However, the …

Hybrid anomaly detection via multihead dynamic graph attention networks for multivariate time series

L Zhou, Q Zeng, B Li - IEEE Access, 2022 - ieeexplore.ieee.org
In the real world, a large number of multivariate time series data are generated by Internet of
Things systems, which are composed of many connected sensing devices. Therefore, it is …

EA-GAT: Event aware graph attention network on cyber-physical systems

MY Yağci, MA Aydin - Computers in Industry, 2024 - Elsevier
Anomaly detection with high accuracy, recall, and low error rate is critical for the safe and
uninterrupted operation of cyber-physical systems. However, detecting anomalies in …

Anomaly Detection with Graph Attention Network for Multimodal IoT Data Monitoring

H Li, Y Gao, W Dong - 2023 IEEE 29th International …, 2023 - ieeexplore.ieee.org
The popularity of the wireless network and the embedded system has promoted the
widespread application of the Internet of Things (IoT) monitoring system which detects …

Full graph autoencoder for one-class group anomaly detection of IIoT system

Y Feng, J Chen, Z Liu, H Lv… - IEEE Internet of Things …, 2022 - ieeexplore.ieee.org
With the increasing automation and integration of equipment, it is urgent to carry out
anomaly detection (AD) for the large-scale system to ensure security, in virtue of Industrial …

Learning graph structures with transformer for multivariate time-series anomaly detection in IoT

Z Chen, D Chen, X Zhang, Z Yuan… - IEEE Internet of Things …, 2021 - ieeexplore.ieee.org
Many real-world Internet of Things (IoT) systems, which include a variety of Internet-
connected sensory devices, produce substantial amounts of multivariate time-series data …

From anomaly detection to classification with graph attention and transformer for multivariate time series

C Wang, G Liu - Advanced Engineering Informatics, 2024 - Elsevier
Numerous industrial environments and IoT systems in the real world contain a range of
sensor devices. These devices, when in operation, produce a large amount of multivariate …

GNN-Based Energy-Efficient Anomaly Detection for IoT Multivariate Time-Series Data

H Guo, Z Zhou, D Zhao - ICC 2023-IEEE International …, 2023 - ieeexplore.ieee.org
Anomaly detection is an important topic in the Internet of Things (IoT). Recently, some
anomaly detection methods based on graph neural networks (GNNs) have gained much …

Anomaly detection using spatial and temporal information in multivariate time series

Z Tian, M Zhuo, L Liu, J Chen, S Zhou - Scientific Reports, 2023 - nature.com
Real-world industrial systems contain a large number of interconnected sensors that
generate a significant amount of time series data during system operation. Performing …

Edge Conditional Node Update Graph Neural Network for Multi-variate Time Series Anomaly Detection

H Jo, SW Lee - Information Sciences, 2024 - Elsevier
With the rapid advancement in cyber-physical systems, the increasing number of sensors
has significantly complicated manual monitoring of system states. Consequently, graph …