2010
DOI: 10.1109/surv.2010.021510.00088
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Outlier Detection Techniques for Wireless Sensor Networks: A Survey

Abstract: In the field of wireless sensor networks, measurements that significantly deviate from the normal pattern of sensed data are considered as outliers. The potential sources of outliers include noise and errors, events, and malicious attacks on the network. Traditional outlier detection techniques are not directly applicable to wireless sensor networks due to the multivariate nature of sensor data and specific requirements and limitations of the wireless sensor networks. This survey provides a comprehensive overv… Show more

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Cited by 630 publications
(85 citation statements)
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“…Future research involves consideration of fading channel in the distributed sensor networks [20] [21]. Designing the appropriate threshold is one of our future works [22].…”
Section: Discussionmentioning
confidence: 99%
“…Future research involves consideration of fading channel in the distributed sensor networks [20] [21]. Designing the appropriate threshold is one of our future works [22].…”
Section: Discussionmentioning
confidence: 99%
“…For example, for a smart phone, low battery levels could lead to infrequent GPS position updates, thus resulting in geo-tagging errors. Approaches to ensure data quality often rely on oversampling and filtering of outlier values [70], reputation schemes that provide trustworthy sensing for public safety [71], or trust network-based human intervention approaches.…”
Section: Target Scenarios For Mission-critical Iotmentioning
confidence: 99%
“…In other words, k-means minimizes the distance between each object and cluster centroid to which it belongs. According to Meratnia and Havinga (2010), calculating the distances that define the similarity between the elements of the groups requires a large computational effort for the limited nodes in a WSN. Therefore, this step should happen outside the network, and it can also be understood as part of data preparation.…”
Section: Obtaining Thermal Patternsmentioning
confidence: 99%