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Graph anomaly detection plays a crucial role in identifying exceptional instances in graph data that deviate significantly from the majority. It has gained substantial attention in various domains of information security, including network…

机器学习 · 计算机科学 2023-11-20 Fan Xu , Nan Wang , Xuezhi Wen , Meiqi Gao , Chaoqun Guo , Xibin Zhao

With the expansion of the semiconductor supply chain, the use of recycled field-programmable gate arrays (FPGAs) has become a serious concern. Several methods for detecting recycled FPGAs by analyzing the ring oscillator (RO) frequencies…

硬件体系结构 · 计算机科学 2022-04-06 Yuya Isaka , Michihiro Shintani , Foisal Ahmed , Michiko Inoue

Radar sensors are an important part of driver assistance systems and intelligent vehicles due to their robustness against all kinds of adverse conditions, e.g., fog, snow, rain, or even direct sunlight. This robustness is achieved by a…

计算机视觉与模式识别 · 计算机科学 2021-01-19 Florian Kraus , Nicolas Scheiner , Werner Ritter , Klaus Dietmayer

Anomaly detection is a crucial task in cyber security. Technological advancement brings new cyber-physical threats like network intrusion, financial fraud, identity theft, and property invasion. In the rapidly changing world, with…

量子物理 · 物理学 2024-09-04 Sounak Bhowmik , Himanshu Thapliyal

We develop an anomaly-detection method when systematic anomalies, possibly statistically very similar to genuine inputs, are affecting control systems at the input and/or output stages. The method allows anomaly-free inputs (i.e., those…

统计方法学 · 统计学 2022-02-01 Ning Sun , Chen Yang , Ričardas Zitikis

This paper describes the use of neural networks to enhance simulations for subsequent training of anomaly-detection systems. Simulations can provide edge conditions for anomaly detection which may be sparse or non-existent in real-world…

神经与进化计算 · 计算机科学 2020-11-06 Philip Feldman

Key Performance Indicators (KPIs) are essential time-series metrics for ensuring the reliability and stability of many software systems. They faithfully record runtime states to facilitate the understanding of anomalous system behaviors and…

软件工程 · 计算机科学 2024-01-15 Jinyang Liu , Wenwei Gu , Zhuangbin Chen , Yichen Li , Yuxin Su , Michael R. Lyu

Detection of anomalous situations for complex mission-critical systems hold paramount importance when their service continuity needs to be ensured. A major challenge in detecting anomalies from the operational data arises due to the…

机器学习 · 计算机科学 2025-05-20 Shanay Mehta , Shlok Mehendale , Nicole Fernandes , Jyotirmoy Sarkar , Santonu Sarkar , Snehanshu Saha

Reliability is a cumbersome problem in High Performance Computing Systems and Data Centers evolution. During operation, several types of fault conditions or anomalies can arise, ranging from malfunctioning hardware to improper…

分布式、并行与集群计算 · 计算机科学 2020-07-30 Andrea Borghesi , Antonio Libri , Luca Benini , Andrea Bartolini

Analog In-Memory Compute (AIMC) can improve the energy efficiency of Deep Learning by orders of magnitude. Yet analog-domain device and circuit non-idealities -- within the analog ``Tiles'' performing Matrix-Vector Multiply (MVM) operations…

As LLMs grow in capability, the task of supervising LLMs becomes more challenging. Supervision failures can occur if LLMs are sensitive to factors that supervisors are unaware of. We investigate Mechanistic Anomaly Detection (MAD) as a…

机器学习 · 计算机科学 2025-04-15 David O. Johnston , Arkajyoti Chakraborty , Nora Belrose

The modern industrial environment is equipping myriads of smart manufacturing machines where the state of each device can be monitored continuously. Such monitoring can help identify possible future failures and develop a cost-effective…

机器学习 · 计算机科学 2023-01-24 William Marfo , Deepak K. Tosh , Shirley V. Moore

Disorder, though naturally present in experimental samples and strongly influencing a wide range of material phenomena, remains underexplored in first-principles studies due to the computational cost of sampling the large supercell and…

材料科学 · 物理学 2025-06-19 Zhenyao Fang , Ting-Wei Hsu , Qimin Yan

Time series anomaly detection (TSAD) is becoming increasingly vital due to the rapid growth of time series data across various sectors. Anomalies in web service data, for example, can signal critical incidents such as system failures or…

机器学习 · 计算机科学 2024-11-06 Jiaxin Zhuang , Leon Yan , Zhenwei Zhang , Ruiqi Wang , Jiawei Zhang , Yuantao Gu

The semiconductors industry benefits greatly from the integration of Machine Learning (ML)-based techniques in Technology Computer-Aided Design (TCAD) methods. The performance of ML models however relies heavily on the quality and quantity…

机器学习 · 计算机科学 2023-09-06 Zeheng Wang , Liang Li , Ross C. C. Leon , Jinlin Yang , Junjie Shi , Timothy van der Laan , Muhammad Usman

Anomaly detection (AD) is the identification of data samples that do not fit a learned data distribution. As such, AD systems can help physicians to determine the presence, severity, and extension of a pathology. Deep generative models,…

图像与视频处理 · 电气工程与系统科学 2021-04-12 Jaime Simarro , Ezequiel de la Rosa , Thijs Vande Vyvere , David Robben , Diana M. Sima

Incipient anomalies present milder symptoms compared to severe ones, and are more difficult to detect and diagnose due to their close resemblance to normal operating conditions. The lack of incipient anomaly examples in the training data…

机器学习 · 计算机科学 2020-08-21 Yingshui Tan , Baihong Jin , Qiushi Cui , Xiangyu Yue , Alberto Sangiovanni Vincentelli

Anomaly detection is facing with emerging challenges in many important industry domains, such as cyber security and online recommendation and advertising. The recent trend in these areas calls for anomaly detection on time-evolving data…

机器学习 · 计算机科学 2019-07-16 Zheng Gao , Lin Guo , Chi Ma , Xiao Ma , Kai Sun , Hang Xiang , Xiaoqiang Zhu , Hongsong Li , Xiaozhong Liu

Time series anomaly detection (TSAD) is an important data mining task with numerous applications in the IoT era. In recent years, a large number of deep neural network-based methods have been proposed, demonstrating significantly better…

机器学习 · 计算机科学 2022-08-04 Wenkai Li , Cheng Feng , Ting Chen , Jun Zhu

Incorporating boundaries of the imaging object as a priori information to imaging algorithms can significantly improve the performance of electromagnetic medical imaging systems. To avoid overly complicating the system by using different…

计算机视觉与模式识别 · 计算机科学 2022-03-14 A. Al-Saffar , A. Stancombe , A. Zamani , A. Abbosh