Intrusion Detection System Using Machine Learning and Network Traffic Analysis


Abstract


With the rapid growth of the internet and digital services, cybersecurity threats have become increasingly sophisticated, posing significant risks to individuals, organizations, and governments. Traditional rule-based Intrusion Detection Systems (IDS) are limited in detecting novel and complex attacks, necessitating the use of intelligent solutions. Machine Learning (ML) offers promising approaches for analyzing large-scale network traffic and identifying malicious behavior patterns. This research focuses on the development of a Machine Learning-based Intrusion Detection System using benchmark datasets such as NSL-KDD and CICIDS2017. Various supervised and ensemble learning algorithms, including Logistic Regression, Decision Trees, Random Forest, Support Vector Machines, and K-Nearest Neighbors, are implemented and compared. The models are evaluated based on accuracy, precision, recall, F1-score, and ROC-AUC metrics. Furthermore, cross-validation is employed to ensure robustness of the results. The outcome of this study highlights the potential of ML-driven IDS in improving detection rates and reducing false positives, thereby contributing to enhanced cybersecurity in real-world environments.




Keywords


Intrusion Detection System, Machine Learning, Cybersecurity, Network Traffic Analysis, NSL-KDD, CICIDS2017, Random Forest, Support Vector Machine, Classification, ROC-AUC