交通运输系统工程与信息

交通运输系统工程与信息 ›› 2002, Vol. 2 ›› Issue (3): 40-43 .

• 系统工程理论与方法 • 上一篇    下一篇

模糊聚类法在公路交通事故黑点
成因分析中的应用

肖 慎1, 过秀成1, 徐建东2   

  1. 1.东南大学交通学院，江苏 南京 210096;

    2.安徽省公路管理局, 安徽 合肥 230011

  • 收稿日期:2002-04-19 修回日期:1900-01-01 出版日期:2002-08-01 发布日期:2002-08-01

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

XIAO Shen1， GUO Xiu-cheng1， XU Jian-dong2   

  1. 1.Transportation College of Southest University. Nanjing Jiangsu 210096, China;
    2.Anhui Province Highway Administer Bureau. Hefei Anhui 230011, C hina
  • Received:2002-04-19 Revised:1900-01-01 Online:2002-08-01 Published:2002-08-01

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摘要： 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，并进行事故黑点成因聚类分析;利用划分系数Fc(U )和划分的平均棋糊摘Hc(U)对聚类效果进行评价.

关键词: 模糊聚类, 聚类中心, 聚类效果

Abstract: 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.

Key words: fuzzy c-demarcation space, fuzzy clustering, clustering center, effect of clustering