Deformation Prediction of a Deep Foundation Pit Based on the Combination Model of Wavelet Transform and Gray BP Neural Network

Table 8

Comparison of gray BP prediction data before and after wavelet denoising.

Measured period	9	10	11	12	Average error
Measured displacement	6.45	6.67	6.78	6.87
Gray BP prediction	6.78	7.01	7.24	7.57	6.70%
Gray BP prediction of wavelet denoising	6.76	6.88	7.03	7.26	4.32%