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Human drivers can recognise fast abnormal driving situations to avoid accidents. Similar to humans, automated vehicles are supposed to perform anomaly detection. In this work, we propose the spatio-temporal graph auto-encoder for learning…

Robotics · Computer Science 2021-10-29 Julian Wiederer , Arij Bouazizi , Marco Troina , Ulrich Kressel , Vasileios Belagiannis

An Adaptive Cruise Control (ACC) system allows vehicles to maintain a desired headway distance to a preceding vehicle automatically. It is increasingly adopted by commercial vehicles. Recent research demonstrates that the effective use of…

Computers and Society · Computer Science 2021-03-26 Lokesh Das , Myounggyu Won

We present a novel machine learning approach for data assimilation applied in fluid mechanics, based on adjoint-optimization augmented by Graph Neural Networks (GNNs) models. We consider as baseline the Reynolds-Averaged Navier-Stokes…

The development of safety validation methods is essential for the safe deployment and operation of Automated Driving Systems (ADSs). One of the goals of safety validation is to prospectively evaluate the risk of an ADS dealing with…

Robotics · Computer Science 2025-07-31 Erwin de Gelder , Maren Buermann , Olaf Op den Camp

Dynamic graph anomaly detection (DGAD) is essential for identifying anomalies in evolving graphs across domains such as finance, traffic, and social networks. Recently, generalist graph anomaly detection (GAD) models have shown promising…

Machine Learning · Computer Science 2025-08-04 Jialun Zheng , Jie Liu , Jiannong Cao , Xiao Wang , Hanchen Yang , Yankai Chen , Philip S. Yu

Trajectory prediction is central to the safe and seamless operation of autonomous vehicles (AVs). In deployment, however, prediction models inevitably face distribution shifts between training data and real-world conditions, where rare or…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Tongfei Guo , Lili Su

Graph anomaly detection (GAD) aims to identify nodes or substructures whose behavior or attributes deviate significantly from the overall pattern in graph-structured data, with critical applications in financial risk control, social network…

Machine Learning · Computer Science 2026-05-27 Yuxin Yang , Limei Hu , Feng Chen

Adaptive Cruise Control (ACC) is a widely used driver assistance technology for maintaining the desired speed and safe distance to the leading vehicle. This paper evaluates the security of the deep neural network (DNN) based ACC systems…

Cryptography and Security · Computer Science 2025-01-06 Xugui Zhou , Anqi Chen , Maxfield Kouzel , Haotian Ren , Morgan McCarty , Cristina Nita-Rotaru , Homa Alemzadeh

In contemporary society, surveillance anomaly detection, i.e., spotting anomalous events such as crimes or accidents in surveillance videos, is a critical task. As anomalies occur rarely, most training data consists of unlabeled videos…

Computer Vision and Pattern Recognition · Computer Science 2022-08-05 MyeongAh Cho , Taeoh Kim , Woo Jin Kim , Suhwan Cho , Sangyoun Lee

Graph anomaly detection is crucial for identifying nodes that deviate from regular behavior within graphs, benefiting various domains such as fraud detection and social network. Although existing reconstruction-based methods have achieved…

Machine Learning · Computer Science 2023-12-25 Junwei He , Qianqian Xu , Yangbangyan Jiang , Zitai Wang , Qingming Huang

We propose Flow Mismatching, an unsupervised anomaly detection method that deliberately avoids reconstruction-based paradigms. Instead, we treat flow matching as geometric dynamics and leverage a key insight: anomalies occur at places where…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 Shengzhe Chen , Mehrdad Moradi , Kamran Paynabar , Hao Yan

Advanced Driver Assistance Systems (ADAS) are increasingly important in improving driving safety and comfort, with Adaptive Cruise Control (ACC) being one of the most widely used. However, pre-defined ACC settings may not always align with…

Systems and Control · Electrical Eng. & Systems 2023-09-12 Zhouqiao Zhao , Xishun Liao , Amr Abdelraouf , Kyungtae Han , Rohit Gupta , Matthew J. Barth , Guoyuan Wu

Detecting anomalies in traffic scenes is crucial for ensuring safety in autonomous driving, yet collecting representative anomalous data remains challenging. Existing anomaly detection methods are highly specialized and rely on normality as…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Albert Schotschneider , Daniel Bogdoll , Svetlana Pavlitska , Ahmed Abouelazm , Johann Marius Zoellner

We introduce Time-Conditioned Contraction Matching (TCCM), a novel method for semi-supervised anomaly detection in tabular data. TCCM is inspired by flow matching, a recent generative modeling framework that learns velocity fields between…

Machine Learning · Computer Science 2025-10-22 Zhong Li , Qi Huang , Yuxuan Zhu , Lincen Yang , Mohammad Mohammadi Amiri , Niki van Stein , Matthijs van Leeuwen

Water distribution systems (WDSs) face increasing cyber-physical risks, which make reliable anomaly detection essential. Many data-driven models ignore network topology and are hard to interpret, while model-based ones depend strongly on…

Machine Learning · Computer Science 2026-01-21 Mohammadhossein Homaei , Iman Khazrak , Ruben Molano , Andres Caro , Mar Avila

Graph anomaly detection (GAD), which aims to identify abnormal nodes that differ from the majority within a graph, has garnered significant attention. However, current GAD methods necessitate training specific to each dataset, resulting in…

Machine Learning · Computer Science 2024-12-25 Yixin Liu , Shiyuan Li , Yu Zheng , Qingfeng Chen , Chengqi Zhang , Shirui Pan

Unsupervised graph-level anomaly detection (UGAD) has attracted increasing interest due to its widespread application. In recent studies, knowledge distillation-based methods have been widely used in unsupervised anomaly detection to…

Machine Learning · Computer Science 2024-07-02 Rui Cao , Shijie Xue , Jindong Li , Qi Wang , Yi Chang

Anomaly detection is a critical requirement for ensuring safety in autonomous driving. In this work, we leverage Cooperative Perception to share information across nearby vehicles, enabling more accurate identification and consensus of…

Multiagent Systems · Computer Science 2025-01-30 Ashish Bastola , Hao Wang , Abolfazl Razi

Point cloud scene flow estimation is of practical importance for dynamic scene navigation in autonomous driving. Since scene flow labels are hard to obtain, current methods train their models on synthetic data and transfer them to real…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Zhao Jin , Yinjie Lei , Naveed Akhtar , Haifeng Li , Munawar Hayat

The detection of anomalies in non-stationary time-series streams is a critical but challenging task across numerous industrial and scientific domains. Traditional models, trained offline, suffer significant performance degradation when…

Machine Learning · Computer Science 2025-09-01 Ashok Devireddy , Shunping Huang