A new good point set stepwise shrinkage optimization in machine learning model for fog node performance prediction.

18 ; secondly, The optimization effect does not get better with the increase of the number of iterations, nor with the increase of the number of levels, but in some sections of the number of levels, the coincidence degree is high, and in some sections, it shows discretization, Although not as significant as the effect of the creation method, overall better results are still observed with higher numbers of iterations and levels.

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