模糊聚类法在公路交通事故黑点成因分析中的应用

Application Fuzzy Clustering Method in the Highway Traffic Black-Spot Cause of Formation Analysis

通过运用模糊c-划分空间方法,对事故黑点成因进行空间划分,采用模糊聚类ISODATA方法确定模糊划分矩阵和成因各特征指标聚类中心,并进行事故黑点成团聚类分析;利用划分系数Fc（U）和划分的平均模糊熵Hc（U）对聚类效果进行评价.

This text demarcates the space of black-spot cause of formation by using the fuzzy c-demarcation space method; and the fuzzy demarcation matrix and the clustering center of each character index of the causes of formation are determined using fuzzy clustering method of ISODATA and then the clustering analysis of the black-spot causes of formation is proceeded. The effect of fuzzy clustering is assessed by using demarcation quotiety and the average fuzzy entropy of the demarcation.