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相关论文: CFLOW-AD: Real-Time Unsupervised Anomaly Detection…

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Anomaly detection (AD) has been widely studied for decades in many real-world applications, including fraud detection in finance, and intrusion detection for cybersecurity, etc. Due to the imbalanced nature between protected and unprotected…

机器学习 · 计算机科学 2024-09-18 Ziwei Wu , Lecheng Zheng , Yuancheng Yu , Ruizhong Qiu , John Birge , Jingrui He

Federated learning (FL) is proving to be one of the most promising paradigms for leveraging distributed resources, enabling a set of clients to collaboratively train a machine learning model while keeping the data decentralized. The…

机器学习 · 计算机科学 2022-09-12 Mirko Nardi , Lorenzo Valerio , Andrea Passarella

Human analysts that use anomaly detection systems in practice want to retain the use of simple and explainable global anomaly detectors. In this paper, we propose a novel human-in-the-loop learning algorithm called GLAD (GLocalized Anomaly…

机器学习 · 计算机科学 2020-07-17 Md Rakibul Islam , Shubhomoy Das , Janardhan Rao Doppa , Sriraam Natarajan

Anomaly detection (AD) is a critical task across domains such as cybersecurity and healthcare. In the unsupervised setting, an effective and theoretically-grounded principle is to train classifiers to distinguish normal data from…

机器学习 · 统计学 2025-06-18 Matthew Lau , Tian-Yi Zhou , Xiangchi Yuan , Jizhou Chen , Wenke Lee , Xiaoming Huo

Anomaly detection, finding patterns that substantially deviate from those seen previously, is one of the fundamental problems of artificial intelligence. Recently, classification-based methods were shown to achieve superior results on this…

机器学习 · 计算机科学 2020-05-06 Liron Bergman , Yedid Hoshen

Unsupervised Anomaly Detection (UAD) plays a crucial role in identifying abnormal patterns within data without labeled examples, holding significant practical implications across various domains. Although the individual contributions of…

机器学习 · 计算机科学 2024-06-04 Zeyu Fang , Ming Gu , Sheng Zhou , Jiawei Chen , Qiaoyu Tan , Haishuai Wang , Jiajun Bu

Semi-supervised Learning plays a crucial role in network anomaly detection applications, however, learning anomaly patterns with limited labeled samples is not easy. Additionally, the lack of interpretability creates key barriers to the…

机器学习 · 计算机科学 2025-11-11 Yachao Yuan , Yu Huang , Yingwen Wu , Jin Wang

We develop a distribution-free, unsupervised anomaly detection method called ECAD, which wraps around any regression algorithm and sequentially detects anomalies. Rooted in conformal prediction, ECAD does not require data exchangeability…

应用统计 · 统计学 2021-06-04 Chen Xu , Yao Xie

Anomaly detection and localization without any manual annotations and prior knowledge is a challenging task under the setting of unsupervised learning. The existing works achieve excellent performance in the anomaly detection, but with…

计算机视觉与模式识别 · 计算机科学 2024-05-16 Honghui Chen , Pingping Chen , Huan Mao , Mengxi Jiang

Out-of-distribution states in robot manipulation often lead to unpredictable robot behavior or task failure, limiting success rates and increasing risk of damage. Anomaly detection (AD) can identify deviations from expected patterns in…

Mainstream unsupervised anomaly detection algorithms often excel in academic datasets, yet their real-world performance is restricted due to the controlled experimental conditions involving clean training data. Addressing the challenge of…

机器学习 · 计算机科学 2025-05-13 Thi Kieu Khanh Ho , Narges Armanfard

Anomaly detection is being regarded as an unsupervised learning task as anomalies stem from adversarial or unlikely events with unknown distributions. However, the predictive performance of purely unsupervised anomaly detection often fails…

机器学习 · 计算机科学 2014-01-27 Nico Goernitz , Marius Micha Kloft , Konrad Rieck , Ulf Brefeld

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…

机器学习 · 计算机科学 2025-09-01 Ashok Devireddy , Shunping Huang

We present a meta-learning framework for weakly supervised anomaly detection in videos, where the detector learns to adapt to unseen types of abnormal activities effectively when only video-level annotations of binary labels are available.…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Jaeyoo Park , Junha Kim , Bohyung Han

Pursuing fast and robust interpretability in Anomaly Detection is crucial, especially due to its significance in practical applications. Traditional Anomaly Detection methods excel in outlier identification but are often black-boxes,…

机器学习 · 计算机科学 2024-03-05 Valentina Zaccaria , David Dandolo , Chiara Masiero , Gian Antonio Susto

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

In this paper, we introduce the novel state-of-the-art Dual-attention Transformer and Discriminative Flow (DADF) framework for visual anomaly detection. Based on only normal knowledge, visual anomaly detection has wide applications in…

计算机视觉与模式识别 · 计算机科学 2023-04-03 Haiming Yao , Wei Luo , Wenyong Yu

We introduce Neural Contextual Anomaly Detection (NCAD), a framework for anomaly detection on time series that scales seamlessly from the unsupervised to supervised setting, and is applicable to both univariate and multivariate time series.…

机器学习 · 计算机科学 2021-07-19 Chris U. Carmona , François-Xavier Aubet , Valentin Flunkert , Jan Gasthaus

Anomaly detection (AD) is a fundamental task of critical importance across numerous domains. Current systems increasingly operate in rapidly evolving environments that generate diverse yet interconnected data modalities -- such as time…

机器学习 · 计算机科学 2025-12-02 Zhongyuan Wu , Jingyuan Wang , Zexuan Cheng , Yilong Zhou , Weizhi Wang , Juhua Pu , Chao Li , Changqing Ma

Cyberthreats are a permanent concern in our modern technological world. In the recent years, sophisticated traffic analysis techniques and anomaly detection (AD) algorithms have been employed to face the more and more subversive adversarial…

机器学习 · 计算机科学 2022-05-17 Paul Irofti , Andrei Pătraşcu , Andrei Iulian Hîji