A Two-Stage Spatiotemporal Approach for Mining Traffic Flows across Multiple Networks
Weisong He, Guangmin Hu, Yingjie Zhou, Haiyan Jin · IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences · 2011
In this letter, a new definition of two-stage spatiotemporal approach, called ICA-WFS (Independent-Component-Analysis-Weighted-Frequent-Substructure) is proposed. To facilitate capturing abnormal behavior across multiple networks and dimensionality reduction at a single Point of Presence (PoP), ICA is applied. With application of WFS, an complete graph is examined, unusual substructures of which are reported. Experiments are conducted and, together with application of backbone network (Internet2) Netflow data, show some positive results.