期刊文献+

不良贷款有无回收判别:一类可选变量的支持向量机方法 被引量:9

Recovery discrimination for nonperforming loan:A support vector machine method with variable selection
原文传递
导出
摘要 针对不良贷款有无回收判别问题中属性变量数目多、示性变量比例高的特点,提出了一类可选择变量的支持向量机方法进行判别预测.该方法一是将逐步回归的支持向量机思想应用在模型变量的选择上,二是将线性逐步回归的结果作为模型选择变量的初始状态,解决了传统支持向量机只能使用固定变量的问题.实证结果显示,该方法不仅提高了样本外预测的正确率,而且具有很好的稳健性. To overcome the difficult of too many indicating variables in the analysis of nonperforming loan recovery,this paper proposes a new SVM method which can select variables.Firstly,the stepwise SVM is employed in the selection of model structure.Secondly,the results of linear stepwise regression are used as the initial states of model selection.Empirical results show that the method not only achieves high accurate in out-sample prediction,but also has a high stable performance.
出处 《系统工程理论与实践》 EI CSCD 北大核心 2009年第12期23-30,共8页 Systems Engineering-Theory & Practice
基金 国家重点基础研究发展计算(973计划)(2007CB814902) 国家自然科学基金(70425004)
关键词 变量选择 支持向量机 回收率 判别分析 variables selection support vector machine recovery rate discrimination analysis
  • 相关文献

参考文献12

二级参考文献54

  • 1Basel Committee, Potential Modifications to the Committee's Proposals, 5 Nov., 2001.
  • 2Basel Committee, Results of Quantitative Impact Study 2.5, 25 June, 2002.
  • 3Basel Committee, New Basel Capital Accord CP3, April 2003.
  • 4Basel Committee, Quantitative Impact Study 3 - Overview of Global Results, 5 May, 2003.
  • 5Basel Committee, Modifications to the capital treatment for expected and unexpected credit losses in the New Basel Accord, 30 Jan. 2004.
  • 6Basel Committee, The Internal Ratings - Based Approach, Supporting Document the CP2 , Jan. 2001.
  • 7Basel Committee, Range of Practice in Banks' Internal Ratings System, Jan. 2000.
  • 8OCC, US, Rating Credit Risk, Comptrollers Handbook, April 2001.
  • 9Working group led by Arturo Estrella, Credit Ratings and Complementary Sources of Credit Quality Information, Basel Committee Working Papers, No. 3, August 2000.
  • 10Mark Carey, Federal Reserve Board, Some Evidence on the Consistency of Banks' Internal Credit Ratings.

共引文献70

同被引文献121

引证文献9

二级引证文献34

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部