You can use benchmark datasets and compare your model's performance with other exiting machine and deep learning models

see these paper as they can help you

Article Identification of malicious activities in industrial interne...

Article An anomaly-based approach for DDoS attack detection in cloud...

Conference Paper An Efficient Intrusion Detection Model for Edge System in Br...

Article Deep Learning-Enabled Threat Intelligence Scheme in the Inte...

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Check our work https://www.sciencedirect.com/science/article/abs/pii/S2542660521000792

In which we tested a vast range of models on four commonly used datasets. Also, we proposed different ways of performance comparisons and evaluation.