Graph-based anomaly detection for smart cities: A survey
2017
With increasing size, the problems a city faces (e.g., air pollution, traffic congestion or high energy consumption) increase, but so does the amount of implicitly available data. In order to leverage this data for smarter problem solutions, local authorities and businesses require sophisticated analysis preprocessing techniques. Recent work proposes modeling urban data as a graph and applying graph-based anomaly detection, which is traditionally used for fraud and intrusion detection. This demonstrates that a successful application of anomaly detection to selected sources of urban data is possible, but lacks an evaluation of the general applicability. In this survey, we discuss several homogeneous and heterogeneous graph models for urban data and suitable detection approaches.
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