Prediction of Industrial Network Security Situation Based on Noise Reduction Using EMD

Figure 4

Comparison of noise reduction: (a) raw data of ONLINE_USERS; (b) denoised signal of ONLINE_USERS using the EMD method; (c) raw data of IP_INBPS; (d) denoised signal of IP_INBPS using the EMD method.

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(b)

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