Dhruba Kumar Bhattacharyya & Jugal Kumar Kalita 
Network Anomaly Detection [PDF ebook] 
A Machine Learning Perspective

With the rapid rise in the ubiquity and sophistication of Internet technology and the accompanying growth in the number of network attacks, network intrusion detection has become increasingly important. Anomaly-based network intrusion detection refers to finding exceptional or nonconforming patterns in network traffic data compared to normal behavi