Hirvey, Rohit, and Dr. Hemant Kumar Gupta. “Learned Zero-Day Intrusion Detection: A Systematic Review of Methods, Evaluation Practice and Open Problems, 2020–2026”. International Journal of Artificial Intelligence and Machine Learning, vol. 6, no. 9s, Sept. 2026, pp. 522-34, https://www.svedbergopen.com/index.php/ijaiml/article/view/1518.