基于改进Apriori算法的装配式建筑质量风险关联规则研究

Research on Quality Risk Association Rules of Prefabricated Buildings Based on Improved Apriori Algorithm

为探究装配式建筑质量风险因素间的关联关系,在利用文献分析法分析203篇相关文献构建质量风险指标的基础上,采用递阶层次模型的AHP法计算主观权重,考虑局部惩罚-激励机制的变权理论计算客观权重,基于组合赋权法得到的综合权重对传统Apriori算法进行改进,提出加权Apriori算法对装配式建筑各工作空间风险进行关联规则挖掘分析。通过分析挖掘结果的不同作业空间、影响因素分布水平、高加权支持度、高置信度等特征,发现关键因素、关键致因关联、风险规律,有助于制定管理措施和提升防控水平。

To explore the correlation between the quality risks of prefabricated buildings,based on the analysis of 203 relevant literature and the construction of quality risk indicators,the hierarchical AHP method was adopted to calculate the subjective weight,and the variable weight theory of local penalty-incentive mechanism was considered to calculate the objective weight.Based on the combined weights obtained by the weighting method,the traditional Apriori algorithm was improved,and the weighted Apriori algorithm was proposed to mine and analyze the association rules for the risk of each workspace of prefabricated buildings.By analyzing the characteristics of different working spaces,influencing factors,high weighted support,and high confidence in the mining results,the key factors,key causative associations,and causative laws were found,which would help to formulate management measures and improve the prevention and control level.