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聚类分析是按照样品彼此相近的程度进行分类的一种方法。但由于在工程地质中很多指标间的界限都是模糊的,因此把模糊数学方法引入聚类分析后,能使这一方法更为理想。本文以实例介绍模糊聚类分析在划分膨胀土中的应用。不妥之处,敬请指正。一、几个基本概念所谓A,B两集合的直积 A×B={(a,b)|a∈A,b∈B} (1)中的一个模糊关系R,是指以A×B为论域的一个模糊子集,序偶(a、b)的隶属函数为μ_R(a,b)。当A×B为有限集时,模糊关系R可用矩阵表示,称为模糊矩阵或
Cluster analysis is a method of classifying samples according to their similarity to each other. However, because the boundaries between many indicators in engineering geology are ambiguous, introducing fuzzy mathematics methods into cluster analysis can make this method more ideal. In this paper, the application of fuzzy clustering analysis in dividing expansive soil is introduced. Inappropriate, please correct me. First, several basic concepts The so-called A, B two sets of direct product A × B = {(a, b) | a ∈ A, b ∈ B} (1) in a fuzzy relationship R, refers to A × B For a fuzzy subset of the domain, the membership function of the sequence pairs (a, b) is μ_R(a, b). When A × B is a finite set, the fuzzy relation R can be represented by a matrix called a fuzzy matrix or