B. B. Gupta, Nadeem Jamali. Predicting Number of Zombies in a DDoS Attacks Using Isotonic Regression. In Tansel Özyer, Zeki Erdem, Jon G. Rokne, Suheil Khoury, editors, Mining Social Networks and Security Informatics. Lecture Notes in Social Networks, pages 145-159, Springer, 2013. [doi]