基于Stacking集成模型融合的钢筋混凝土锈胀开裂预测方法

梁梓豪, 应宗权, 刘梅梅, 杨帅

Prediction Method for Reinforced Concrete Corrosion-induced Crack Based on Stacking Integrated Model Fusion

LIANG Zihao, YING Zongquan, LIU Meimei, YANG Shuai

表1 机器学习模型预测结果比较

Table 1 Comparison of prediction results of machine learning models

Arithmetic Hyperparameterization Optimal parameter values R2 RMSE/% MAE/% Stacking / / 0.906 1.17 0.88 XGBoost n_estimator 222 0.883 1.31 0.95 max_depth 9 gamma 3 learning_rate 0.3 RF max_depth 9 0.837 1.55 1.09 min_samples_split 2 min_sample_leaf 1 n_estimators 125 SVR C 32 0.773 1.83 1.46 Gamma 1