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Anomaly detection is a critical task in cybersecurity, where identifying insider threats, access violations, and coordinated attacks is essential for ensuring system resilience. Graph-based approaches have become increasingly important for…

密码学与安全 · 计算机科学 2026-03-31 Laura Jiang , Reza Ryan , Qian Li , Nasim Ferdosian

Anomaly detection is crucial for understanding unusual behaviors in data, as anomalies offer valuable insights. This paper introduces Dependency-based Anomaly Detection (DepAD), a general framework that utilizes variable dependencies to…

机器学习 · 计算机科学 2024-04-18 Sha Lu , Lin Liu , Kui Yu , Thuc Duy Le , Jixue Liu , Jiuyong Li

Consumer electronics (CE) connected to the Internet of Things are susceptible to various attacks, including DDoS and web-based threats, which can compromise their functionality and facilitate remote hijacking. These vulnerabilities allow…

密码学与安全 · 计算机科学 2026-03-03 Guan-Yan Yang , Farn Wang , Kuo-Hui Yeh

Automatic image anomaly detection is important for quality inspection in the manufacturing industry. The usual unsupervised anomaly detection approach is to train a model for each object class using a dataset of normal samples. However, a…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Yuanwei Li , Elizaveta Ivanova , Martins Bruveris

Effective anomaly detection from logs is crucial for enhancing cybersecurity defenses by enabling the early identification of threats. Despite advances in anomaly detection, existing systems often fall short in areas such as post-detection…

密码学与安全 · 计算机科学 2025-04-04 Zhuoran Tan , Qiyuan Wang , Christos Anagnostopoulos , Shameem P. Parambath , Jeremy Singer , Sam Temple

Anomaly detection in computational workflows is critical for ensuring system reliability and security. However, traditional rule-based methods struggle to detect novel anomalies. This paper leverages large language models (LLMs) for…

This paper proposes an innovative Attention-GAN framework for enhancing cybersecurity, focusing on anomaly detection. In response to the challenges posed by the constantly evolving nature of cyber threats, the proposed approach aims to…

密码学与安全 · 计算机科学 2024-02-29 Mohammed Abo Sen

Anomaly-based intrusion detection (AID) techniques are useful for detecting novel intrusions into computing resources. One of the most successful AID detectors proposed to date is stide, which is based on analysis of system call sequences.…

密码学与安全 · 计算机科学 2007-05-23 Zhuowei Li , Amitabha Das

Anomaly detection, where data instances are discovered containing feature patterns different from the majority, plays a fundamental role in various applications. However, it is challenging for existing methods to handle the scenarios where…

机器学习 · 计算机科学 2023-04-24 Guanchu Wang , Ninghao Liu , Daochen Zha , Xia Hu

Industrial Control Systems (ICSs) are becoming more and more important in managing the operation of many important systems in smart manufacturing, such as power stations, water supply systems, and manufacturing sites. While massive digital…

系统与控制 · 电气工程与系统科学 2022-05-05 Do Thu Ha , Nguyen Xuan Hoang , Nguyen Viet Hoang , Nguyen Huu Du , Truong Thu Huong , Kim Phuc Tran

Detecting anomalies in large, distributed systems presents several challenges. The first challenge arises from the sheer volume of data that needs to be processed. Flagging anomalies in a high-throughput environment calls for a careful…

机器学习 · 计算机科学 2025-10-07 Anupam Panwar , Himadri Pal , Jiali Chen , Kyle Cho , Riddick Jiang , Miao Zhao , Rajiv Krishnamurthy

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…

多智能体系统 · 计算机科学 2025-01-30 Ashish Bastola , Hao Wang , Abolfazl Razi

Anomaly detection is the process of finding data points that deviate from a baseline. In a real-life setting, anomalies are usually unknown or extremely rare. Moreover, the detection must be accomplished in a timely manner or the risk of…

机器学习 · 计算机科学 2019-04-26 Mariem Ben Fadhel , Kofi Nyarko

Anomaly detection is a method for discovering unusual and suspicious behavior. In many real-world scenarios, the examined events can be directly linked to the actions of an adversary, such as attacks on computer networks or frauds in…

Unsupervised Deep Learning (DL) techniques have been widely used in various security-related anomaly detection applications, owing to the great promise of being able to detect unforeseen threats and superior performance provided by Deep…

密码学与安全 · 计算机科学 2021-09-24 Dongqi Han , Zhiliang Wang , Wenqi Chen , Ying Zhong , Su Wang , Han Zhang , Jiahai Yang , Xingang Shi , Xia Yin

Anomaly detection suffered from the lack of anomalies due to the diversity of abnormalities and the difficulties of obtaining large-scale anomaly data. Semi-supervised anomaly detection methods are often used to solely leverage normal data…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Jian Shi , Ni Zhang

Log analysis is one of the main techniques that engineers use for troubleshooting large-scale software systems. Over the years, many supervised, semi-supervised, and unsupervised log analysis methods have been proposed to detect system…

软件工程 · 计算机科学 2024-04-22 Yongzheng Xie , Hongyu Zhang , Muhammad Ali Babar

Machine learning ensembles combine multiple base models to produce a more accurate output. They can be applied to a range of machine learning problems, including anomaly detection. In this paper, we investigate how to maximize the…

硬件体系结构 · 计算机科学 2024-06-11 Binglei Lou , David Boland , Philip H. W. Leong

Anomaly detection is widely used in a broad range of domains from cybersecurity to manufacturing, finance, and so on. Deep learning based anomaly detection has recently drawn much attention because of its superior capability of recognizing…

机器学习 · 计算机科学 2023-05-23 Ronit Das , Tie Luo

Anomaly detection based on system logs plays an important role in intelligent operations, which is a challenging task due to the extremely complex log patterns. Existing methods detect anomalies by capturing the sequential dependencies in…

机器学习 · 计算机科学 2023-07-10 Ling Chen , Chaodu Song , Xu Wang , Dachao Fu , Feifei Li