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We consider the problem of detecting, in the visual sensing data stream of an autonomous mobile robot, semantic patterns that are unusual (i.e., anomalous) with respect to the robot's previous experience in similar environments. These…

An unmanned autonomous vehicle (UAV) is sent on a mission to explore and reconstruct an unknown environment from a series of measurements collected by Bayesian optimization. The success of the mission is judged by the UAV's ability to…

Machine Learning · Statistics 2021-04-09 Antoine Blanchard , Themistoklis Sapsis

Anomaly detection methods can be very useful in identifying unusual or interesting patterns in data. A recently proposed conditional anomaly detection framework extends anomaly detection to the problem of identifying anomalous patterns on a…

Machine Learning · Computer Science 2026-05-12 Michal Valko , Gregory Cooper , Amy Seybert , Shyam Visweswaran , Melissa Saul , Miloš Hauskrecht

The goal of anomaly detection is to identify anomalous samples from normal ones. In this paper, a small number of anomalies are assumed to be available at the training stage, but they are assumed to be collected only from several anomaly…

Machine Learning · Computer Science 2022-05-03 Bowen Tian , Qinliang Su , Jian Yin

Anomaly detection is important in many real-life applications. Recently, self-supervised learning has greatly helped deep anomaly detection by recognizing several geometric transformations. However these methods lack finer features, usually…

Computer Vision and Pattern Recognition · Computer Science 2022-12-12 Loic Jezequel , Ngoc-Son Vu , Jean Beaudet , Aymeric Histace

We focus on the problem of identifying samples in a set that do not conform to structured patterns represented by low-dimensional manifolds. An effective way to solve this problem is to embed data in a high dimensional space, called…

Machine Learning · Computer Science 2025-05-19 Filippo Leveni , Luca Magri , Cesare Alippi , Giacomo Boracchi

The detection of heterogeneous mental disorders based on brain readouts remains challenging due to the complexity of symptoms and the absence of reliable biomarkers. This paper introduces CAM (Cortical Anomaly Detection through Masked Image…

Image and Video Processing · Electrical Eng. & Systems 2024-02-14 Hao-Chun Yang , Ole Andreassen , Lars Tjelta Westlye , Andre F. Marquand , Christian F. Beckmann , Thomas Wolfers

Detecting early signs of failures (anomalies) in complex systems is one of the main goal of preventive maintenance. It allows in particular to avoid actual failures by (re)scheduling maintenance operations in a way that optimizes…

Machine Learning · Statistics 2015-03-19 Tsirizo Rabenoro , Jérôme Lacaille , Marie Cottrell , Fabrice Rossi

UAVs, commonly referred to as drones, have witnessed a remarkable surge in popularity due to their versatile applications. These cyber-physical systems depend on multiple sensor inputs, such as cameras, GPS receivers, accelerometers, and…

Software Engineering · Computer Science 2025-10-21 Ivan Tan , Wei Minn , Christopher M. Poskitt , Lwin Khin Shar , Lingxiao Jiang

Anomalies represent rare observations (e.g., data records or events) that deviate significantly from others. Over several decades, research on anomaly mining has received increasing interests due to the implications of these occurrences in…

Machine Learning · Computer Science 2022-04-21 Xiaoxiao Ma , Jia Wu , Shan Xue , Jian Yang , Chuan Zhou , Quan Z. Sheng , Hui Xiong , Leman Akoglu

Large Language Model (LLM)-based multi-agent systems (MAS) demonstrate remarkable potential for scientific discovery. Existing approaches, however, often automate scientific discovery using predefined workflows that lack rationality…

Machine Learning · Computer Science 2026-02-10 Yingming Pu , Tao Lin , Hongyu Chen

The spread of a resource-constrained Internet of Things (IoT) environment and embedded devices has put pressure on the real-time detection of anomalies occurring at the edge. This survey presents an overview of machine-learning methods…

Machine Learning · Computer Science 2025-12-23 Abdelmadjid Benmachiche , Khadija Rais , Hamda Slimi

Multivariate anomaly detection can be used to identify outages within large volumes of telemetry data for computing systems. However, developing an efficient anomaly detector that can provide users with relevant information is a challenging…

Machine Learning · Computer Science 2022-02-15 Bruno Wassermann , David Ohana , Ronen Schaffer , Robert Shahla , Elliot K. Kolodner , Eran Raichstein , Michal Malka

Anomaly detection in complex industrial environments poses unique challenges, particularly in contexts characterized by data sparsity and evolving operational conditions. Predictive maintenance (PdM) in such settings demands methodologies…

Machine Learning · Computer Science 2025-03-12 Alicia Russell-Gilbert , Sudip Mittal , Shahram Rahimi , Maria Seale , Joseph Jabour , Thomas Arnold , Joshua Church

The identification of undesirable behavior in event logs is an important aspect of process mining that is often addressed by anomaly detection methods. Traditional anomaly detection methods tend to focus on statistically rare behavior and…

Artificial Intelligence · Computer Science 2024-07-01 Kiran Busch , Timotheus Kampik , Henrik Leopold

Anomaly segmentation is a critical task for driving applications, and it is approached traditionally as a per-pixel classification problem. However, reasoning individually about each pixel without considering their contextual semantics…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Shyam Nandan Rai , Fabio Cermelli , Dario Fontanel , Carlo Masone , Barbara Caputo

In this paper, we discuss the potential of applying unsupervised anomaly detection in constructing AI-based interactive systems that deal with highly contextual situations, i.e., human-human communication, in collaboration with domain…

Human-Computer Interaction · Computer Science 2022-06-23 Riku Arakawa , Hiromu Yakura

Spacecraft anomaly detection is critical for mission safety, yet deploying sophisticated models on-board presents significant challenges due to hardware constraints. This paper investigates three approaches for spacecraft telemetry anomaly…

Machine Learning · Computer Science 2026-04-01 Christopher Goetze , Tim Schlippe , Daniel Lakey

Anomaly detection plays a pivotal role in manufacturing quality control, yet its application is constrained by limited abnormal samples and high manual annotation costs. While anomaly synthesis offers a promising solution, existing studies…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Qunyi Zhang , Songan Zhang , Jiaqi Liu , Jinbao Wang , Xiaoning Lei , Guoyang Xie , Guannan Jiang , Zhichao Lu

While innovations in scientific instrumentation have pushed the boundaries of Mars rover mission capabilities, the increase in data complexity has pressured Mars Science Laboratory (MSL) and future Mars rover operations staff to quickly…

Machine Learning · Computer Science 2021-07-27 Paul Horton , Hannah R. Kerner , Samantha Jacob , Ernest Cisneros , Kiri L. Wagstaff , James Bell