The invention provides a
permafrost roadbed deformation prediction method and device and
electronic equipment, and belongs to the technical field of
permafrost deformation. According to the method, the
influence factor data of the frozen soil roadbed can be decomposed, the
data structure is simplified, dimension reduction
processing is carried out on the decomposed data, and the redundancy-removed principal components are obtained through screening. Then,
correlation analysis is carried out on the principal components subjected to redundancy
elimination, the principal components with high correlation degree with frozen soil roadbed deformation are extracted, and high-quality input characteristics are provided for a prediction model; according to the method, the variables influencing the deformation of the frozen soil roadbed are screened,
key factors with relatively high correlation with the deformation are extracted, data with relatively
low correlation are removed, and the quality of a
training set is improved. Therefore, on the premise of not influencing the correlation of the original
training set, the data volume of the
training set is reduced, and the frozen soil roadbed deformation prediction efficiency and accuracy can be improved. Furthermore, the
processing advantage of the LSTM on the
time sequence characteristics and the efficient calculation characteristic of the XGBoost are fused through the
hybrid machine learning model, the calculation cost of frozen soil roadbed deformation prediction can be remarkably reduced while the prediction precision is ensured, and therefore the requirement for efficiency in actual
engineering is better met.