基于改进Prefix Span的结构超手册修理方法推荐  

Structural Over manual Repair Method Recommendation Based on Improved Prefix Span

作　　者：王宁悦 王华伟[1] 周长威 张纵驰 WANG Ning-yue;WANG Hua-wei;ZHOU Chang-wei;ZHANG Zong-chi(Nanjing University of Aeronautics and Astronautics,Nanjing 211000,China)

机构地区：[1]南京航空航天大学,江苏南京211000

出　　处：《航空计算技术》2023年第4期42-46,共5页Aeronautical Computing Technique

基　　金：国家自然科学基金项目资助(72271123)。

摘　　要：针对当前民机结构超手册修理能力提升的迫切需求,提出了一种基于改进Prefix Span的结构超手册修理方法推荐模型。以某型国产民机结构超手册修理案例数据为样本,构建案例特征指标层次并对数据分级和结构化预处理,基于改进Prefix Span算法对案例损伤信息和修理方法频繁序列进行充分挖掘,生成超手册修理关联规则集,通过目标案例和频繁序列间相似度匹配,实现了超手册修理方法的智能推荐。测试结果表明,模型超手册修理方法推荐总准确率可达85.3%,显著高于改进前算法,具备良好的准确性和可用性,可为结构超手册修理决策、方案制定等提供一定的参考依据。Aiming at the urgent need to improve the over manual repair capability of civil aircraft structures,a structural over manual repair method recommendation model based on improved Prefix Span is proposed.Taking the structural over manual repair case data of a certain type of domestic civil aircraft as the sample,the case characteristic index hierarchy is constructed,and the data is classified and structured.Based on the improved Prefix Span algorithm,the frequent sequences are fully mined to generate the over manual repair association rule set,and the intelligent recommendation of over manual repair methods is realized through similarity matching between target cases and frequent sequences.The test results of the model show that the total accuracy of the over manual repair method recommendation model can reach 85.3%,which is significantly higher than that of the algorithm before improvement.With good accuracy and usability,the model can provide a certain reference basis for structural over manual repair decision making and program formulation.

关 键 词：超手册 结构修理 方法推荐 Prefix Span算法 

分 类 号：TP315[自动化与计算机技术—计算机软件与理论] O242[自动化与计算机技术—计算机科学与技术]