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Anomaly detection in images plays a significant role for many applications across all industries, such as disease diagnosis in healthcare or quality assurance in manufacturing. Manual inspection of images, when extended over a monotonously…

Computer Vision and Pattern Recognition · Computer Science 2021-07-21 Vincent Wilmet , Sauraj Verma , Tabea Redl , Håkon Sandaker , Zhenning Li

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…

Machine Learning · Computer Science 2020-04-23 Olga Petrova , Karel Durkota , Galina Alperovich , Karel Horak , Michal Najman , Branislav Bosansky , Viliam Lisy

Radar systems are mainly used for tracking aircraft, missiles, satellites, and watercraft. In many cases, information regarding the objects detected by the radar system is sent to, and used by, a peripheral consuming system, such as a…

Cryptography and Security · Computer Science 2021-06-15 Shai Cohen , Efrat Levy , Avi Shaked , Tair Cohen , Yuval Elovici , Asaf Shabtai

Coadded astronomical images are created by stacking multiple single-exposure images. Because coadded images are smaller in terms of data size than the single-exposure images they summarize, loading and processing them is less…

Instrumentation and Methods for Astrophysics · Physics 2022-11-18 Mallory Wang , Ismael Mendoza , Cheng Wang , Camille Avestruz , Jeffrey Regier

We propose a supervised anomaly detection method for data with inexact anomaly labels, where each label, which is assigned to a set of instances, indicates that at least one instance in the set is anomalous. Although many anomaly detection…

Machine Learning · Statistics 2019-09-12 Tomoharu Iwata , Machiko Toyoda , Shotaro Tora , Naonori Ueda

We present a new algorithm for anomaly detection called Anomaly Awareness. The algorithm learns about normal events while being made aware of the anomalies through a modification of the cost function. We show how this method works in…

Machine Learning · Computer Science 2023-08-02 Charanjit K. Khosa , Veronica Sanz

Scientific discoveries are often made by finding a pattern or object that was not predicted by the known rules of science. Oftentimes, these anomalous events or objects that do not conform to the norms are an indication that the rules of…

Machine Learning · Computer Science 2026-02-17 Elizabeth G. Campolongo , Yuan-Tang Chou , Ekaterina Govorkova , Wahid Bhimji , Wei-Lun Chao , Chris Harris , Shih-Chieh Hsu , Hilmar Lapp , Mark S. Neubauer , Josephine Namayanja , Aneesh Subramanian , Philip Harris , Advaith Anand , David E. Carlyn , Subhankar Ghosh , Christopher Lawrence , Eric Moreno , Ryan Raikman , Jiaman Wu , Ziheng Zhang , Bayu Adhi , Mohammad Ahmadi Gharehtoragh , Saúl Alonso Monsalve , Marta Babicz , Furqan Baig , Namrata Banerji , William Bardon , Tyler Barna , Tanya Berger-Wolf , Adji Bousso Dieng , Micah Brachman , Quentin Buat , David C. Y. Hui , Phuong Cao , Franco Cerino , Yi-Chun Chang , Shivaji Chaulagain , An-Kai Chen , Deming Chen , Eric Chen , Chia-Jui Chou , Zih-Chen Ciou , Miles Cochran-Branson , Artur Cordeiro Oudot Choi , Michael Coughlin , Matteo Cremonesi , Maria Dadarlat , Peter Darch , Malina Desai , Daniel Diaz , Steven Dillmann , Javier Duarte , Isla Duporge , Urbas Ekka , Saba Entezari Heravi , Hao Fang , Rian Flynn , Geoffrey Fox , Emily Freed , Hang Gao , Jing Gao , Julia Gonski , Matthew Graham , Abolfazl Hashemi , Scott Hauck , James Hazelden , Joshua Henry Peterson , Duc Hoang , Wei Hu , Mirco Huennefeld , David Hyde , Vandana Janeja , Nattapon Jaroenchai , Haoyi Jia , Yunfan Kang , Maksim Kholiavchenko , Elham E. Khoda , Sangin Kim , Aditya Kumar , Bo-Cheng Lai , Trung Le , Chi-Wei Lee , JangHyeon Lee , Shaocheng Lee , Suzan van der Lee , Charles Lewis , Haitong Li , Haoyang Li , Henry Liao , Mia Liu , Xiaolin Liu , Xiulong Liu , Vladimir Loncar , Fangzheng Lyu , Ilya Makarov , Abhishikth Mallampalli , Chen-Yu Mao , Alexander Michels , Alexander Migala , Farouk Mokhtar , Mathieu Morlighem , Min Namgung , Andrzej Novak , Andrew Novick , Amy Orsborn , Anand Padmanabhan , Jia-Cheng Pan , Sneh Pandya , Zhiyuan Pei , Ana Peixoto , George Percivall , Alex Po Leung , Sanjay Purushotham , Zhiqiang Que , Melissa Quinnan , Arghya Ranjan , Dylan Rankin , Christina Reissel , Benedikt Riedel , Dan Rubenstein , Argyro Sasli , Eli Shlizerman , Arushi Singh , Kim Singh , Eric R. Sokol , Arturo Sorensen , Yu Su , Mitra Taheri , Vaibhav Thakkar , Ann Mariam Thomas , Eric Toberer , Chenghan Tsai , Rebecca Vandewalle , Arjun Verma , Ricco C. Venterea , He Wang , Jianwu Wang , Sam Wang , Shaowen Wang , Gordon Watts , Jason Weitz , Andrew Wildridge , Rebecca Williams , Scott Wolf , Yue Xu , Jianqi Yan , Jai Yu , Yulei Zhang , Haoran Zhao , Ying Zhao , Yibo Zhong

Hacking and false data injection from adversaries can threaten power grids' everyday operations and cause significant economic loss. Anomaly detection in power grids aims to detect and discriminate anomalies caused by cyber attacks against…

Machine Learning · Computer Science 2023-03-14 Xijuan Sun , Di Wu , Arnaud Zinflou , Benoit Boulet

Various technologies, including computer vision models, are employed for the automatic monitoring of manual assembly processes in production. These models detect and classify events such as the presence of components in an assembly area or…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Anton Sergeev , Victor Minchenkov , Aleksei Soldatov , Vasiliy Kakurin , Yaroslav Mazikov

Large-scale astrophysics datasets present an opportunity for new machine learning techniques to identify regions of interest that might otherwise be overlooked by traditional searches. To this end, we use Classification Without Labels…

Astrophysics of Galaxies · Physics 2024-12-11 Mariel Pettee , Sowmya Thanvantri , Benjamin Nachman , David Shih , Matthew R. Buckley , Jack H. Collins

With a focus on abnormal events contained within untrimmed videos, there is increasing interest among researchers in video anomaly detection. Among different video anomaly detection scenarios, weakly-supervised video anomaly detection poses…

Computer Vision and Pattern Recognition · Computer Science 2023-09-29 Yidan Fan , Yongxin Yu , Wenhuan Lu , Yahong Han

System states that are anomalous from the perspective of a domain expert occur frequently in some anomaly detection problems. The performance of commonly used unsupervised anomaly detection methods may suffer in that setting, because they…

Machine Learning · Statistics 2016-05-17 Richard Neuberg , Yixin Shi

The site conditions that make astronomical observatories in space and on the ground so desirable -- cold and dark -- demand a physical remoteness that leads to limited data transmission capabilities. Such transmission limitations directly…

Artificial Intelligence · Computer Science 2025-06-11 Tuan Truong , Rithwik Sudharsan , Yibo Yang , Peter Xiangyuan Ma , Ruihan Yang , Stephan Mandt , Joshua S. Bloom

This brief sketches initial progress towards a unified energy-based solution for the semi-supervised visual anomaly detection and localization problem. In this setup, we have access to only anomaly-free training data and want to detect and…

Machine Learning · Computer Science 2021-05-10 Ergin Utku Genc , Nilesh Ahuja , Ibrahima J Ndiour , Omesh Tickoo

Anomaly detection is not an easy problem since distribution of anomalous samples is unknown a priori. We explore a novel method that gives a trade-off possibility between one-class and two-class approaches, and leads to a better performance…

Machine Learning · Statistics 2020-05-26 Maxim Borisyak , Artem Ryzhikov , Andrey Ustyuzhanin , Denis Derkach , Fedor Ratnikov , Olga Mineeva

One of the contemporary challenges in anomaly detection is the ability to detect, and differentiate between, both point and collective anomalies within a data sequence or time series. The anomaly package has been developed to provide users…

Applications · Statistics 2024-01-30 Alex Fisch , Daniel Grose , Idris A. Eckley , Paul Fearnhead , Lawrence Bardwell

Anomaly detection in video is a challenging computer vision problem. Due to the lack of anomalous events at training time, anomaly detection requires the design of learning methods without full supervision. In this paper, we approach…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Mariana-Iuliana Georgescu , Antonio Barbalau , Radu Tudor Ionescu , Fahad Shahbaz Khan , Marius Popescu , Mubarak Shah

Anomaly detection plays a vital role in industrial manufacturing. Due to the scarcity of real defect images, unsupervised approaches that rely solely on normal images have been extensively studied. Recently, diffusion-based generative…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Sungho Kang , Hyunkyu Park , Yeonho Lee , Hanbyul Lee , Mijoo Jeong , YeongHyeon Park , Injae Lee , Juneho Yi

Anomalies are samples that significantly deviate from the rest of the data and their detection plays a major role in building machine learning models that can be reliably used in applications such as data-driven design and novelty…

Machine Learning · Statistics 2023-06-19 Amin Yousefpour , Mehdi Shishehbor , Zahra Zanjani Foumani , Ramin Bostanabad

In one-class-learning tasks, only the normal case (foreground) can be modeled with data, whereas the variation of all possible anomalies is too erratic to be described by samples. Thus, due to the lack of representative data, the…

Computer Vision and Pattern Recognition · Computer Science 2019-06-03 Duc Tam Nguyen , Zhongyu Lou , Michael Klar , Thomas Brox