Title
Using Sparse Representation to Detect Anomalies in Complex WSNs.
Abstract
In recent years, wireless sensor networks (WSNs) have become an active area of research for monitoring physical and environmental conditions. Due to the interdependence of sensors, a functional anomaly in one sensor can cause a functional anomaly in another sensor, which can further lead to the malfunctioning of the entire sensor network. Existing research work has analysed faulty sensor anomalies but fails to show the effectiveness throughout the entire interdependent network system. In this article, a dictionary learning algorithm based on a non-negative constraint is developed, and a sparse representation anomaly node detection method for sensor networks is proposed based on the dictionary learning. Through experiment on a specific thermal power plant in China, we verify the robustness of our proposed method in detecting abnormal nodes against four state of the art approaches and proved our method is more robust. Furthermore, the experiments are conducted on the obtained abnormal nodes to prove the interdependence of multi-layer sensor networks and reveal the conditions and causes of a system crash.
Year
DOI
Venue
2019
10.1145/3331147
ACM Transactions on Intelligent Systems and Technology
Keywords
Field
DocType
Dependency relationships networks,Sparse Representation,WSNs,anomaly detection
Data mining,Computer science,Sparse approximation,Artificial intelligence,Machine learning
Journal
Volume
Issue
ISSN
10
6
2157-6904
Citations 
PageRank 
References 
4
0.36
0
Authors
8
Name
Order
Citations
PageRank
Xiaoming Li1122.87
Guangquan Xu217133.20
Xi Zheng315424.34
Kaitai Liang461245.13
Emmanouil Panaousis540.36
Tao Li63210.42
Wei Wang77122746.33
Chao Shen842146.21