Impact Factor (2025): 6.9
DOI Prefix: 10.47001/IRJIET
The
ever-evolving cybersecurity sector requires robust intrusion detection systems
(IDS). Traditional rules-based measures are no longer sufficient due to the
complexity of cyber threats, requiring new approaches. This study presents the
architecture of an intrusion detection system combining machine learning and
principal component analysis (PCA) to increase network security. A network
traffic classification system was built and tested on the NSL-KDD dataset and
used PCA for dimensionality reduction. The results were cross-validated to
reduce overfitting and ensure generalizability of the model. Low-variance
precision refers to the consistency of the cross-validation fold. The
combination of PCA and machine learning models exceeds previous studies with an
F1 score for the random forest model of over 99%. The study improves intrusion
detection and network protection against cyber-attacks.
Country : Lebanon
IRJIET, Volume 8, Issue 2, February 2024 pp. 1-7