Credit Scoring by Fuzzy Support Vector Machines with a Novel Membership Function

Journal of Risk and Financial Management

Benlian Xu¹  Jian Shi² 

[1] Automatic Engineering, Changshu Institute of Technology, Changshu 215500, China;;School of Electrical &

关键词: fuzzy support vector machine;    support vector data description;    credit scoring;   

DOI  :  10.3390/jrfm9040013

来源: DOAJ

【 摘 要 】

Due to the recent financial crisis and European debt crisis, credit risk evaluation has become an increasingly important issue for financial institutions. Reliable credit scoring models are crucial for commercial banks to evaluate the financial performance of clients and have been widely studied in the fields of statistics and machine learning. In this paper a novel fuzzy support vector machine (SVM) credit scoring model is proposed for credit risk analysis, in which fuzzy membership is adopted to indicate different contribution of each input point to the learning of SVM classification hyperplane. Considering the methodological consistency, support vector data description (SVDD) is introduced to construct the fuzzy membership function and to reduce the effect of outliers and noises. The SVDD-based fuzzy SVM model is tested against the traditional fuzzy SVM on two real-world datasets and the research results confirm the effectiveness of the presented method.

【 授权许可】

Unknown