Research and Application of Deformation Prediction Model for Deep Foundation Pit Based on LSTM

Algorithm 3

Nesterov algorithm.

Require: set the initial learning rate to , set to momentum coefficient (0.9 or 0.99)

Require: set the initial parameter to , set initial speed to 0

While stop condition not satisfied do

Randomly extract samples from the training set, and is the true value corresponding to .

Forecast point update:

Calculate the gradient at the predicted point:

Speed update:

Parameter updating:

End while