Normal-Only Anomaly Detection in Environmental Sensors in CPS: A Comprehensive Review

Anomaly detection is crucial for maintaining the reliability and security of environmental sensors in Cyber-Physical Systems (CPS). This paper presents a comprehensive review that examines the field of anomaly detection using only normal data (normal-only anomaly detection) within environmental sens...

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Main Authors: Yaa Takyiwaa Acquaah, Roy Kaushik
Format: Article
Language:English
Published: IEEE 2024-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10786214/
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author Yaa Takyiwaa Acquaah
Roy Kaushik
author_facet Yaa Takyiwaa Acquaah
Roy Kaushik
author_sort Yaa Takyiwaa Acquaah
collection DOAJ
description Anomaly detection is crucial for maintaining the reliability and security of environmental sensors in Cyber-Physical Systems (CPS). This paper presents a comprehensive review that examines the field of anomaly detection using only normal data (normal-only anomaly detection) within environmental sensor networks of CPS, covering literature from the past ten years. The study explores the methods, challenges, and progress made in this area offering exploration of methodologies, challenges, and advancements. With a focus on identifying deviations from normal behavior rather than categorizing specific anomalies, this review covers a wide range of anomaly detection techniques tailored to environmental sensor data. Furthermore, we offer perspectives on particular application fields of CPS and explore how anomaly detection techniques that depend exclusively on data from normal operations are implemented. We analyze the intricacies of applying machine learning, statistical, and data-driven approaches to unveil anomalies, while considering the unique characteristics and constraints of CPS environments. The review also delves into the challenges posed by noisy and dynamic sensor data, scalability issues, and the trade-offs between detection accuracy and resource efficiency. By synthesizing insights from diverse research endeavors, we provide a comprehensive understanding of the landscape, emerging directions, and potential applications of normal-only anomaly detection in environmental sensors within CPS. The study stands as an essential guide for academics, professionals, and interested parties aiming to bolster the resilience and safeguarding of CPS equipped with sensors.
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spelling doaj-art-d92e930ac2644024b94f352d7718daf62025-08-20T02:40:08ZengIEEEIEEE Access2169-35362024-01-011219108619110710.1109/ACCESS.2024.351371410786214Normal-Only Anomaly Detection in Environmental Sensors in CPS: A Comprehensive ReviewYaa Takyiwaa Acquaah0https://orcid.org/0009-0005-0473-4751Roy Kaushik1https://orcid.org/0000-0002-9026-5322Department of Computer Science, North Carolina Agricultural and Technical State University, Greensboro, NC, USADepartment of Computer Science, North Carolina Agricultural and Technical State University, Greensboro, NC, USAAnomaly detection is crucial for maintaining the reliability and security of environmental sensors in Cyber-Physical Systems (CPS). This paper presents a comprehensive review that examines the field of anomaly detection using only normal data (normal-only anomaly detection) within environmental sensor networks of CPS, covering literature from the past ten years. The study explores the methods, challenges, and progress made in this area offering exploration of methodologies, challenges, and advancements. With a focus on identifying deviations from normal behavior rather than categorizing specific anomalies, this review covers a wide range of anomaly detection techniques tailored to environmental sensor data. Furthermore, we offer perspectives on particular application fields of CPS and explore how anomaly detection techniques that depend exclusively on data from normal operations are implemented. We analyze the intricacies of applying machine learning, statistical, and data-driven approaches to unveil anomalies, while considering the unique characteristics and constraints of CPS environments. The review also delves into the challenges posed by noisy and dynamic sensor data, scalability issues, and the trade-offs between detection accuracy and resource efficiency. By synthesizing insights from diverse research endeavors, we provide a comprehensive understanding of the landscape, emerging directions, and potential applications of normal-only anomaly detection in environmental sensors within CPS. The study stands as an essential guide for academics, professionals, and interested parties aiming to bolster the resilience and safeguarding of CPS equipped with sensors.https://ieeexplore.ieee.org/document/10786214/Cyber-physical systemsenvironmental sensorsdata-driven approachesmachine learningnormal-only anomaly detectionsensor networks
spellingShingle Yaa Takyiwaa Acquaah
Roy Kaushik
Normal-Only Anomaly Detection in Environmental Sensors in CPS: A Comprehensive Review
IEEE Access
Cyber-physical systems
environmental sensors
data-driven approaches
machine learning
normal-only anomaly detection
sensor networks
title Normal-Only Anomaly Detection in Environmental Sensors in CPS: A Comprehensive Review
title_full Normal-Only Anomaly Detection in Environmental Sensors in CPS: A Comprehensive Review
title_fullStr Normal-Only Anomaly Detection in Environmental Sensors in CPS: A Comprehensive Review
title_full_unstemmed Normal-Only Anomaly Detection in Environmental Sensors in CPS: A Comprehensive Review
title_short Normal-Only Anomaly Detection in Environmental Sensors in CPS: A Comprehensive Review
title_sort normal only anomaly detection in environmental sensors in cps a comprehensive review
topic Cyber-physical systems
environmental sensors
data-driven approaches
machine learning
normal-only anomaly detection
sensor networks
url https://ieeexplore.ieee.org/document/10786214/
work_keys_str_mv AT yaatakyiwaaacquaah normalonlyanomalydetectioninenvironmentalsensorsincpsacomprehensivereview
AT roykaushik normalonlyanomalydetectioninenvironmentalsensorsincpsacomprehensivereview