AuthorsM. Lee, J. Lin and E. G. Gran
EditorsL. O’Conner
TitleReRe: A Lightweight Real-time Ready-to-Go Anomaly Detection Approach for Time Series
AfilliationCommunication Systems
Project(s)Department of High Performance Computing
Publication TypeProceedings, refereed
Year of Publication2020
Conference NameIEEE 44th Annual Computers, Software, and Applications Conference
ISBN Number978-1-7281-7303-0
ISSN Number0730-3157

Anomaly detection is an active research topic in many different fields such as intrusion detection, network monitoring, system health monitoring, IoT healthcare, etc. However, many existing anomaly detection approaches require either human intervention or domain knowledge, and may suffer from high computation complexity, consequently hindering their applicability in real-world scenarios. Therefore, a lightweight and ready-to-go approach that is able to detect anomalies in real-time is highly sought-after. Such an approach could be easily and immediately applied to perform time series anomaly detection on any commodity machine. The approach could provide timely anomaly alerts and by that enable appropriate countermeasures to be undertaken as early as possible. With these goals in mind, this paper introduces ReRe, which is a Real-time Ready-to-go proactive Anomaly Detection algorithm for streaming time series. ReRe employs two lightweight Long Short-Term Memory (LSTM) models to predict and jointly determine whether or not an upcoming data point is anomalous based on short-term historical data points and two long-term self-adaptive thresholds. Experiments based on real-world time-series datasets demonstrate the good performance of ReRe in real-time anomaly detection without requiring human intervention or domain knowledge.

Citation Key27415