2016/06/18 by Xiufeng Liu, Liu, Xiufeng, Per Sieverts Nielsen +1
Computer Science · #Anomaly Detection Techniques and Applications #Data Stream Mining Techniques #Databases (cs.DB) #FOS: Computer and information sciences #Time Series Analysis and Forecasting
paper · pdf · doi:10.48550/arxiv.1606.05781
openalex publication_date 2016/06/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
With the widely used smart meters in the energy sector, anomaly detection becomes a crucial mean to study the unusual consumption behaviors of customers, and to discover unexpected events of using energy promptly. Detecting consumption anomalies is, essentially, a real-time big data analytics problem, which does data mining on a large amount of parallel data streams from smart meters. In this paper, we propose a supervised learning and statistical-based anomaly detection method, and implement a Lambda system using the in-memory distributed computing framework, Spark and its extension Spark Streaming. The system supports not only iterative detection model refreshment from scalable data sets, but also real-time detection on scalable live data streams. This paper empirically evaluates the system and the detection algorithm, and the results show the effectiveness and the scalability of the proposed lambda detection system.