Detecting Novel Scans Through Pattern Anomaly Detection.
You can download it from the following link: https://packetstormsecurity.com/files/download/51894/Detecting-Novel-Scans-Through-Pattern-Anomaly-Detection.pdf
Source: https://packetstormsecurity.com/files/51894/Detecting-Novel-Scans-Through-Pattern-Anomaly-Detection.pdf.html