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Enhancing Machine Learning-Based DDoS Detection Through Hyperparameter Optimization
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DOI：10.3390-electronics14163319.png)
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Abstract
En 中文
In recent years, the occurrence and complexity of Distributed Denial of Service (DDoS) attacks have escalated significantly, posing threats to the availability, performance, and security of networked systems. With the rapid progression of Artificial Intelligence (AI) and Machine Learning (ML) technologies, attackers can leverage intelligent tools to automate and amplify DDoS attacks with minimal human intervention. The increasing sophistication of such attacks highlights the pressing need for more robust and precise detection methodologies. This research proposes a method to enhance the effectiveness of ML models in detecting DDoS attacks based on hyperparameter tuning. By optimizing model parameters, the proposed approach is going to enhance the performance of ML models in identifying DDoS attacks. The CIC-DDoS2019 dataset is utilized in this study as it offers a comprehensive set of real-world DDoS attack scenarios across various protocols and services. The proposed methodology comprises key stages, including data preprocessing, data splitting, and model training, validation, and testing. Three ML models are trained and tuned using an adaptive GridSearchCV (Cross Validation) strategy to identify optimal parameter configurations. The results demonstrate that our method significantly improves performance and efficiency compared with the general GridSearchCV. The SVM model achieves 99.87% testing accuracy and requires approximately 28% less execution time than the general GridSearchCV. The LR model achieves 99.6830% testing accuracy with an execution time of 16.90 s, maintaining the same testing accuracy but reducing the execution time by about 22.8%. The KNN model achieves 99.8395% testing accuracy and 2388.89 s of execution time, also preserving accuracy while decreasing the execution time by approximately 63%. These results indicate that our approach enhances DDoS detection performance and efficiency, offering novel insights into the practical application of hyperparameter tuning for improving ML model performance in real-world scenarios.
Keywords:
DDoS attacks
machine learning
hyperparameter tuning
GridSearchCV
network security
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