基于灰色关联的设计方案实例模糊预分类方法研究  

Fuzzy Pre-classification of Design Scheme Case Based on Grey Relevancy Method

作　　者：李敬敏[1] 廖洪富[1] 刘勇谋[1] 姚进[1] 

机构地区：[1]四川大学制造科学与工程学院,四川成都610065

出　　处：《四川大学学报（工程科学版）》2008年第4期187-190,共4页Journal of Sichuan University (Engineering Science Edition)

摘　　要：相似实例的检索能力是基于实例推理的关键技术之一。为提高实例检索效率,提出一种基于传递闭包的设计方案实例模糊预分类方法。为提高模糊相似度计算的准确性,综合考虑了环境因素和影响权重,提出一种基于灰色关联度的设计方案模糊相似矩阵建立方法,并给出了计算步骤。通过将待分类的决策矩阵转变成模糊相似矩阵,再将模糊相似矩阵转变成模糊等价矩阵,较好的实现了设计方案实例的模糊聚类,并给出运行实例。结果表明,此方法可以给出设计方案间的相似程度和分类的归并过程,为相似设计方案的检索提供动态变化的搜索范围和更好的数据支持。Similar case retrieving is one of key technologies in based case reasoning system.In order to improve the retrieving efficiency,a method of transferring closed-package-based fuzzy pre-classification for design scheme was proposed.For calculating the fuzzy similarity more accurately,by taking into account of the factors of environment and weight,a method of grey relation degree-based building fuzzy-similar matrix was put forward and its calculation step was given.Then fuzzy clustering of design schemes can b...

关 键 词：模糊聚类分析 基于实例推理 灰色关联度 方案设计 

分 类 号：TB112[理学—数学]