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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

Detecting rare and diverse anomalies in highly imbalanced datasets-such as Advanced Persistent Threats (APTs) in cybersecurity-remains a fundamental challenge for machine learning systems. Active learning offers a promising direction by…

Machine Learning · Computer Science 2026-02-04 Sidahmed Benabderrahmane , Petko Valtchev , James Cheney , Talal Rahwan

Insider threat detection (ITD) is challenging due to the subtle and concealed nature of malicious activities performed by trusted users. This paper proposes a post-hoc ITD framework that integrates explicit and implicit graph…

Artificial Intelligence · Computer Science 2025-12-23 Rahul Yumlembam , Biju Issac , Seibu Mary Jacob , Longzhi Yang , Deepa Krishnan

Recent advances in adversarial Deep Learning (DL) have opened up a largely unexplored surface for malicious attacks jeopardizing the integrity of autonomous DL systems. With the wide-spread usage of DL in critical and time-sensitive…

Cryptography and Security · Computer Science 2018-08-22 Bita Darvish Rouhani , Mohammad Samragh , Mojan Javaheripi , Tara Javidi , Farinaz Koushanfar

Advances in deep neural networks (DNN) greatly bolster real-time detection of anomalous IoT data. However, IoT devices can hardly afford complex DNN models, and offloading anomaly detection tasks to the cloud incurs long delay. In this…

Machine Learning · Computer Science 2020-04-16 Mao V. Ngo , Tie Luo , Hakima Chaouchi , Tony Q. S. Quek

In response to the demand for higher computational power, the number of computing nodes in high performance computers (HPC) increases rapidly. Exascale HPC systems are expected to arrive by 2020. With drastic increase in the number of HPC…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-10-21 Siavash Ghiasvand , Florina M. Ciorba

Time series anomaly detection is a challenging problem due to the complex temporal dependencies and the limited label data. Although some algorithms including both traditional and deep models have been proposed, most of them mainly focus on…

Machine Learning · Computer Science 2023-03-28 Chaoli Zhang , Tian Zhou , Qingsong Wen , Liang Sun

Detecting complex anomalies on massive amounts of data is a crucial task in Industry 4.0, best addressed by deep learning. However, available solutions are computationally demanding, requiring cloud architectures prone to latency and…

In-Context Learning (ICL) has become a standard technique for adapting Large Language Models (LLMs) to specialized tasks by supplying task-specific exemplars within the prompt. However, when these exemplars contain sensitive information,…

Cryptography and Security · Computer Science 2026-04-22 Jacob Choi , Shuying Cao , Xingjian Dong , Amin Banayeeanzade , Wang Bill Zhu , Robin Jia , Sai Praneeth Karimireddy

Diffusion models are vulnerable to backdoor attacks, where malicious attackers inject backdoors by poisoning certain training samples during the training stage. This poses a significant threat to real-world applications in the…

Cryptography and Security · Computer Science 2025-02-05 Zihan Guan , Mengxuan Hu , Sheng Li , Anil Vullikanti

Automatic log file analysis enables early detection of relevant incidents such as system failures. In particular, self-learning anomaly detection techniques capture patterns in log data and subsequently report unexpected log event…

Machine Learning · Computer Science 2023-05-16 Max Landauer , Sebastian Onder , Florian Skopik , Markus Wurzenberger

Graph anomaly detection (GAD) has become an increasingly important task across various domains. With the rapid development of graph neural networks (GNNs), GAD methods have achieved significant performance improvements. However, fairness…

Machine Learning · Computer Science 2025-08-15 Shouju Wang , Yuchen Song , Sheng'en Li , Dongmian Zou

The growing scale and sophistication of cyberattacks pose critical challenges to network security, particularly in detecting diverse intrusion types within imbalanced datasets. Traditional intrusion detection systems (IDS) often struggle to…

Cryptography and Security · Computer Science 2025-11-25 Nisith Dissanayake , Uthayasanker Thayasivam

Anomaly detection in supercomputers is a very difficult problem due to the big scale of the systems and the high number of components. The current state of the art for automated anomaly detection employs Machine Learning methods or…

Machine Learning · Computer Science 2020-07-30 Andrea Borghesi , Andrea Bartolini , Michele Lombardi , Michela Milano , Luca Benini

Face presentation attack detection plays a critical role in the modern face recognition pipeline. A face presentation attack detection model with good generalization can be obtained when it is trained with face images from different input…

Computer Vision and Pattern Recognition · Computer Science 2022-05-03 Rui Shao , Pramuditha Perera , Pong C. Yuen , Vishal M. Patel

Few-Shot Industrial Visual Anomaly Detection (FS-IVAD) comprises a critical task in modern manufacturing settings, where automated product inspection systems need to identify rare defects using only a handful of normal/defect-free training…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Aggelos Psiris , Yannis Panagakis , Maria Vakalopoulou , Georgios Th. Papadopoulos

Fake videos represent an important misinformation threat. While existing forensic networks have demonstrated strong performance on image forgeries, recent results reported on the Adobe VideoSham dataset show that these networks fail to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Tai D. Nguyen , Shengbang Fang , Matthew C. Stamm

Insider threats usually occur from within the workplace, where the attacker is an entity closely associated with the organization. The sequence of actions the entities take on the resources to which they have access rights allows us to…

Cryptography and Security · Computer Science 2024-09-23 R G Gayathri , Atul Sajjanhar , Md Palash Uddin , Yong Xiang

Federated Learning (FL) is a distributed machine learning diagram that enables multiple clients to collaboratively train a global model without sharing their private local data. However, FL systems are vulnerable to attacks that are…

Machine Learning · Computer Science 2024-08-20 Qilei Li , Ahmed M. Abdelmoniem

Anomaly detection is important for industrial automation and part quality assurance, and while humans can easily detect anomalies in components given a few examples, designing a generic automated system that can perform at human or above…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Anthony Garland , Kevin Potter , Matt Smith