基于RF-SOA-DELM-AdaBoost模型的混凝土抗压强度预测及试验研究
Prediction and experimental study of concrete compressive strength based on the RF-SOA-DELM-AdaBoost model
关键词:
混凝土;抗压强度;海鸥算法;深度极限学习机;集成学习模型;组合预测
Key words:
Concrete; Compressive strength; Seagull algorithm; Deep limit learning machine; Ensemble learning model; Combination predict
刊期:
2025年第9期
DOI:
10.19761/j.1000-4637.2025.09.030.05
文章编号:
基金项目:
国家重点研发计划项目(2022YFC3802003)。
作者:
狄飞超1,2,李拔周1,2,3,李 阳1,2
单位:
1.中交武汉港湾工程设计研究院有限公司,湖北 武汉 430050;2.海工结构新材料及维护加固技术湖北省重点实验室,湖北 武汉 430050;3.中交第二航务工程局有限公司,湖北 武汉 430040
摘要
摘 要:提出了一种基于RF-SOA-DELM-AdaBoost的混凝土抗压强度组合预测模型。首先,采用随机森林(RF)特征重要性排序与统计分析的方法,确定了影响混凝土抗压强度的关键因素;其次,采用海鸥算法(SOA)优化了深度极限学习机(DELM)的权值和阈值,建立了SOA-DELM预测模型;最后,利用AdaBoost集成模型构建强回归器,得到了最终预测值。预测结果与试验数据对比表明:RF-SOA-DELM-Adaboost模型的预测精度和拟合效果显著优于其他模型,在混凝土抗压强度预测分析中应用前景广阔。
Abstract: A combined prediction model of concrete compressive strength based on RF-SOA-DELM-AdaBoost was proposed. Firstly, the key factors affecting the compressive strength of concrete were determined by the method of random forest (RF) feature importance ranking and statistical analysis. Secondly, the seagull algorithm (SOA) was used to optimize the weight and threshold of the deep limit learning machine (DELM), and the SOA-DELM prediction model was established. Finally, A strong regression was built by Adaboost integration to predict and get the final prediction value. The results of comparsion between model prediction and experiment show that the prediction accuracy and fitting effect of the RF-SOA-DELM-AdaBoost model are significantly better than other models, and it has broad application prospects in the research of concrete compressive strength prediction.
结论
(1)通过特征选择方法,对模型的输入进行处理与筛选,不仅能提高预测速度,还能提高预测精度。
(2)采用智能优化算法对模型的超参数进行优化,能够有效降低模型的预测误差。
(3)AdaBoost集成模型对数据的拟合效果显著优于单一模型。
(4)基于RF-SOA-DELM-AdaBoost的混凝土抗压强度预测模型算法精度高,数据拟合效果好,具有一定的工程应用价值,为混凝土抗压强度预测提供了新的发展思路。
(5)本研究还存在以下问题:用于验证模型的数据量较少;混凝土的抗压强度预测精度有待进一步提升。未来,将依托更多的施工现场混凝土配合比数据,完善模型,实现更高精度的混凝土抗压强度预测。
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引用本文
狄飞超,李拔周,李阳.基于RF-SOA-DELM-AdaBoost模型的混凝土抗压强度预测及试验研究[J].混凝土与水泥制品,2025(9):30-34.
DI F C,LI B Z,LI Y.Prediction and experimental study of concrete compressive strength based on the RF-SOA-DELM-AdaBoost model[J].China Concrete and Cement Products,2025(9):30-34.
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