Detecting anomalies from high-dimensional wireless network data streams: a case study

Abstract

In this paper, we study the problem of anomaly detection in wireless network streams. We have developed a new technique, called Stream Projected Outlier deTector (SPOT), to deal with the problem of anomaly detection from multi-dimensional or high-dimensional data streams. We conduct a detailed case study of SPOT in this paper by deploying it for anomaly detection from a real-life wireless network data stream. Since this wireless network data stream is unlabeled, a validating method is thus proposed to generate the ground-truth results in this case study for performance evaluation. Extensive experiments are conducted and the results demonstrate that SPOT is effective in detecting anomalies from wireless network data streams and outperforms existing anomaly detection methods.