C4.5算法在工程质量决策支持系统中的应用研究

Applied Research of C4.5 Algorithm in Engineering Quality Decision Support System

由于传统的水利工程质量监督管理系统只是起到监管的作用,难以发现并预测工程质量上潜在的问题。针对这一现象,提出了采用决策树C4.5算法对工程质量进行决策支持的解决方案。首先概述了决策树算法和C4.5算法,然后详细阐述了决策支持系统中数据预处理、利用C4.5算法进行数据建模的过程,最后根据建立好的决策树模型开发决策支持系统。实验结果表明:用C4.5算法建立的决策树模型准确率较高,开发的决策支持系统能很好地应用到实际工程质量监督的过程中并达到了预期目的,能较好地对未来工程质量进行预测,给监督部门提供决策支持。

As traditional hydraulic engineering quality supervision and management system just playing the role of regulation,it is difficult to detect and predict potential problems on the quality of the project. Aiming at this phenomenon,a solution about using the C4. 5 algorithm to make decision on project quality was proposed. First provided an overview of the algorithm and C4. 5 decision tree algorithm and then elaborated data preprocessing and the process about data modeling used with C4. 5 algorithm in decision support system. Finally developed the decision support system according to the decision tree model. The experimental results show that the decision tree model established by C4. 5 algorithm has high accuracy. The developed decision support system can be well applied to practical engineering quality supervision process and achieves the desired results. It can be better for the future project quality prediction,providing decision support to the supervision department.