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Title	Iot Anomaly Detection Methods And Applications: A Survey
ID_Doc	33619
Authors	Chatterjee A.; Ahmed B.S.
Year	2022
Published	Internet of Things (Netherlands), 19
DOI	http://dx.doi.org/10.1016/j.iot.2022.100568
Abstract	Ongoing research on anomaly detection for the Internet of Things (IoT) is a rapidly expanding field. This growth necessitates an examination of application trends and current gaps. The vast majority of those publications are in areas such as network and infrastructure security, sensor monitoring, smart home, and smart city applications and are extending into even more sectors. Recent advancements in the field have increased the necessity to study the many IoT anomaly detection applications. This paper begins with a summary of the detection methods and applications, accompanied by a discussion of the categorization of IoT anomaly detection algorithms. We then discuss the current publications to identify distinct application domains, examining papers chosen based on our search criteria. The survey considers 64 papers among recent publications published between January 2019 and July 2021. In recent publications, we observed a shortage of IoT anomaly detection methodologies, for example, when dealing with the integration of systems with various sensors, data and concept drifts, and data augmentation where there is a shortage of Ground Truth data. Finally, we discuss the present such challenges and offer new perspectives where further research is required. © 2022 The Author(s)
Author Keywords	Anomaly detection; Applications; Internet of Things; IoT; Review; Survey

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