吉林大学学报(理学版)

• 计算机科学 • 上一篇    下一篇

基于离群点剔除的SVM信用风险评价方法

刘颖1,2,3, 王丽敏1,3, 姜建华1,2,3, 赵成丽1, 张池军1,2,3, 孙铁铮1   

  1. 1. 吉林财经大学 管理科学与信息工程学院, 长春130117;2. 吉林财经大学 物流产业经济与智能物流重点实验室, 长春 130117;3. 吉林财经大学 互联网金融省重点实验室, 长春 130117
  • 收稿日期:2016-05-17 出版日期:2016-11-26 发布日期:2016-11-29
  • 通讯作者: 刘颖 E-mail:lyaihua1995@163.com

SVM Credit Risk Evaluation MethodBased on Eliminating Outliers

LIU Ying1,2,3, WANG Limin1,3, JIANG Jianhua1,2,3, ZHAO Chengli1,ZHANG Chijun1,2,3, SUN Tiezheng1   

  1. 1. School of Management Science and Information Engineering, Jilin University of Finance and Economics, Changchun 130117, China; 2. Key Laboratory of Logistics Industry Economy and Intelligent Logistics, Jilin University of Finance and Economics, Changchun 130117, China;3. Jilin Province Key Laboratory of Internet Finance, Jilin University of Finance and Economics, Changchun 130117, China
  • Received:2016-05-17 Online:2016-11-26 Published:2016-11-29
  • Contact: LIU Ying E-mail:lyaihua1995@163.com

摘要: 针对信用评价数据存在离群点和噪声问题, 提出一种基于离群点剔除的支持向量机(SVM)信用风险评价模型. 该模型利用模糊c-均值聚类算法剔除样本离群点, 采用粒子群算法优化支持向量机分类参数, 进而提高支持向量机的分类性能. 将该方法应用于信用风险评价中的结果表明, 相比于其他模型, 该方法分类精度更高.

关键词: 信用风, 离群点, 模糊c-均值聚类算法, 支持向量机

Abstract: Aiming at the problem of outliers and noise in credit evaluation data, we proposed a support vector machine (SVM) credit risk evaluation model based on eliminating outliers. This model used Fuzzy c-means clustering algorithm to eliminate the outliers. The classification performance of SVM was impro
ved by optimizing the SVM classification parameters by using the particle swarm optimization algorithm. The results of applying the proposed method to the credit risk evaluation show that the classification accuracy is higher than other models. 

Key words: credit risk, outlier, Fuzzy c-means clustering algorithm, support vector machine (SVM)

中图分类号: 

  • TP399