A wavelet-based anomaly detection for outbound network traffic
Kriangkrai Limthong, Pirawat Watanapongse, Kensuke Fukuda · Asia-Pacific Symposium on Information and Telecommunication Technologies · 2010
Monitoring and detecting network anomalies are indispensable activities for network administrators. Most anomaly detection techniques focus on inbound traffic (traffic from the Internet entering a customer network) rather than outbound traffic. However, anomalous inbound traffic patterns will be significantly different from anomalous outbound traffic. For network operators, outbound traffic is as important as inbound traffic because they can monitor unwanted activities in their networks to prevent it from affecting other networks.