运筹与管理 ›› 2011, Vol. 20 ›› Issue (6): 226-231.

• 管理科学 • 上一篇    

基于投影寻踪和最优分割的企业信用评级模型

张目1,2, 周宗放1   

  1. 1.电子科技大学 经济与管理学院, 四川 成都 610054;
    2.贵州财经学院 金融学院, 贵州 贵阳 550004
  • 收稿日期:2010-04-02 出版日期:2011-12-25
  • 作者简介:张目(1968-),男,贵州贵阳人,博士研究生,副教授,研究方向为信用风险管理、金融工程、证券投资等;周宗放(1950-),男,四川成都人,博士生导师,教授,研究方向为信用风险管理、金融工程、运筹优化等。
  • 基金资助:
    国家自然科学基金资助项目(70971015)

A Credit Rating Model for Enterprises Based on Projection Pursuit and Optimal Partition

ZHANG Mu1,2, ZHOU Zong-fang1   

  1. 1. School of Management and Economics, University of Electronic Science and Technology of China, Chengdu Sichuan 610054, China;
    2. School of Finance, Guizhou College of Finance and Economics, Guiyang 550004, China
  • Received:2010-04-02 Online:2011-12-25

摘要: 提出一种基于投影寻踪和最优分割的企业信用评级模型。该模型运用投影寻踪对样本企业进行信用综合评分,将信用综合得分由大到小排序,生成有序样品序列;利用最优分割法对有序样品进行聚类,得出明确的聚类结果;将最优分割点对应的信用综合得分作为划分信用等级的阈值,从而实现对样本企业的信用评级。应用实例证明了该模型的可行性和有效性。

关键词: 金融工程, 信用评级, 投影寻踪, 最优分割, 聚类分析, 企业信用风险

Abstract: A new credit rating model for enterprises based on projection pursuit and optimal partition is presented in this paper. Using projection pursuit, the comprehensive credit score of each sample is obtained. After sorting the comprehensive credit score descending, the ordered sample series is generated. A clustering analysis of the ordered samples is carried out with the optimal partition method, so the clustering results are obtained definitely. And then, each optimal partition point is regarded as the threshold to divide the credit grades. Finally, the credit rating for enterprises is achieved. Through a specific example, it is proved that the model proposed by this paper is feasible and effective.

Key words: financial engineering, credit rating, projection pursuit, optimal partition, clustering analysis, enterprise credit risk

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