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Fully Unsupervised Anomaly Detection (FUAD) is a practical extension of Unsupervised Anomaly Detection (UAD), aiming to detect anomalies without any labels even when the training set may contain anomalous samples. To achieve FUAD, we…

计算机视觉与模式识别 · 计算机科学 2025-08-26 Xinyue Liu , Jianyuan Wang , Biao Leng , Shuo Zhang

As data continues to grow in volume and complexity across domains such as finance, manufacturing, and healthcare, effective anomaly detection is essential for identifying irregular patterns that may signal critical issues. Recently,…

机器学习 · 计算机科学 2025-06-16 Jing Ren , Tao Tang , Hong Jia , Ziqi Xu , Haytham Fayek , Xiaodong Li , Suyu Ma , Xiwei Xu , Feng Xia

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…

机器学习 · 计算机科学 2026-01-21 Mohammadhossein Homaei , Iman Khazrak , Ruben Molano , Andres Caro , Mar Avila

In industrial anomaly detection, model efficiency and mobile-friendliness become the primary concerns in real-world applications. Simultaneously, the impressive generalization capabilities of Segment Anything (SAM) have garnered broad…

计算机视觉与模式识别 · 计算机科学 2024-11-20 Chenghao Li , Lei Qi , Xin Geng

Anomaly detection aims to identify observations that deviate from the typical pattern of data. Anomalous observations may correspond to financial fraud, health risks, or incorrectly measured data in practice. We show detecting anomalies in…

机器学习 · 统计学 2020-05-26 Matthew Davidow , David S. Matteson

Anomaly detection in manufacturing pipelines remains a critical challenge, intensified by the complexity and variability of industrial environments. This paper introduces AssemAI, an interpretable image-based anomaly detection system…

计算机视觉与模式识别 · 计算机科学 2024-10-17 Renjith Prasad , Chathurangi Shyalika , Ramtin Zand , Fadi El Kalach , Revathy Venkataramanan , Ramy Harik , Amit Sheth

Anomaly detection has many important applications, such as monitoring industrial equipment. Despite recent advances in anomaly detection with deep-learning methods, it is unclear how existing solutions would perform under…

声音 · 计算机科学 2022-04-06 Bingqing Chen , Luca Bondi , Samarjit Das

Unsupervised anomaly detection encompasses diverse applications in industrial settings where a high-throughput and precision is imperative. Early works were centered around one-class-one-model paradigm, which poses significant challenges in…

计算机视觉与模式识别 · 计算机科学 2024-05-13 Sushovan Jena , Vishwas Saini , Ujjwal Shaw , Pavitra Jain , Abhay Singh Raihal , Anoushka Banerjee , Sharad Joshi , Ananth Ganesh , Arnav Bhavsar

Anomaly detection in multivariate time series is challenging as heterogeneous subsequence anomalies may occur. Reconstruction-based methods, which focus on learning normal patterns in the frequency domain to detect diverse abnormal…

机器学习 · 计算机科学 2025-05-09 Xingjian Wu , Xiangfei Qiu , Zhengyu Li , Yihang Wang , Jilin Hu , Chenjuan Guo , Hui Xiong , Bin Yang

Synthesizing realistic and spatially precise anomalies is essential for enhancing the robustness of industrial anomaly detection systems. While recent diffusion-based methods have demonstrated strong capabilities in modeling complex defect…

计算机视觉与模式识别 · 计算机科学 2025-12-01 Yanshu Wang , Xichen Xu , Xiaoning Lei , Guoyang Xie

Defect detection is a critical research area in artificial intelligence. Recently, synthetic data-based self-supervised learning has shown great potential on this task. Although many sophisticated synthesizing strategies exist, little…

计算机视觉与模式识别 · 计算机科学 2023-10-12 Yuxuan Cai , Dingkang Liang , Dongliang Luo , Xinwei He , Xin Yang , Xiang Bai

Anomaly detection and localization in industrial images are essential for automated quality inspection. PaDiM, a prominent method, models the distribution of normal image features extracted by pre-trained Convolutional Neural Networks…

计算机视觉与模式识别 · 计算机科学 2025-08-25 Cory Gardner , Byungseok Min , Tae-Hyuk Ahn

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…

计算机视觉与模式识别 · 计算机科学 2026-05-20 Albert Schotschneider , Daniel Bogdoll , Svetlana Pavlitska , Ahmed Abouelazm , Johann Marius Zoellner

Currently, industrial anomaly detection suffers from two bottlenecks: (i) the rarity of real-world defect images and (ii) the opacity of sample quality when synthetic data are used. Existing synthetic strategies (e.g., cut-and-paste)…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Long Qian , Bingke Zhu , Yingying Chen , Ming Tang , Jinqiao Wang

Anomaly detection significantly enhances the robustness of cloud systems. While neural network-based methods have recently demonstrated strong advantages, they encounter practical challenges in cloud environments: the contradiction between…

机器学习 · 计算机科学 2024-03-20 Feiyi Chen , Yingying zhang , Zhen Qin , Lunting Fan , Renhe Jiang , Yuxuan Liang , Qingsong Wen , Shuiguang Deng

Vision Transformers (ViTs) have significantly advanced computer vision, demonstrating strong performance across various tasks. However, the attention mechanism in ViTs makes each layer function as a low-pass filter, and the stacked-layer…

计算机视觉与模式识别 · 计算机科学 2025-10-24 Linwei Chen , Lin Gu , Ying Fu

Anomaly detection describes methods of finding abnormal states, instances or data points that differ from a normal value space. Industrial processes are a domain where predicitve models are needed for finding anomalous data instances for…

机器学习 · 计算机科学 2022-09-26 Alexander Zeiser , Bas van Stein , Thomas Bäck

Within (semi-)automated visual inspection, learning-based approaches for assessing visual defects, including deep neural networks, enable the processing of otherwise small defect patterns in pixel size on high-resolution imagery. The…

计算机视觉与模式识别 · 计算机科学 2024-01-18 André Luiz B. Vieira e Silva , Francisco Simões , Danny Kowerko , Tobias Schlosser , Felipe Battisti , Veronica Teichrieb

Anomaly detection plays a crucial role in industrial settings, particularly in maintaining the reliability and optimal performance of cooling systems. Traditional anomaly detection methods often face challenges in handling diverse data…

机器学习 · 计算机科学 2024-04-26 Sarala Naidu , Ning Xiong

Anomaly detection in complex industrial processes plays a pivotal role in ensuring efficient, stable, and secure operation. Existing anomaly detection methods primarily focus on analyzing dominant anomalies using the process variables (such…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Gaochang Wu , Yapeng Zhang , Lan Deng , Jingxin Zhang , Tianyou Chai