Corporate credit-rating prediction using statistical and artificial intelligence (AI) techniques has received considerable research attention in the literature. In recent years, multiclass support vector machines (MSVMs) have become a very appealing machine-learning approach due to their good performance. Until now, researchers have proposed a variety of techniques for adapting support vector machines (SVMs) to multiclass classification, since SVMs were originally devised for binary classification. However, the studies that applied MSVMs in predicting bond rating just adopted a few techniques. This study is designed to evaluate all MSVM techniques proposed in the literature for the prediction of corporate bond rating in Korea. To do this, we applied six different techniques of MSVMs, and compared the prediction performances. We also examined some modified version of conventional MSVM techniques.
목차
Abstract Introduction Six Techniques for Implementing MulticlassSupport Vector Machines Constructing Several Binary Classifiers:(1) One-Against-All Constructing Several Binary Classifiers:(2) One-Against-One Constructing Several Binary Classifiers:(3) DAGSVM Constructing Several Binary Classifiers:(4) ECOC Directly Considering All the Data at Once:(5) Method of Weston and Watkins Directly Considering All the Data at Once:(6) Method of Crammer and Singer Prior Studies on Bond Rating using MSVMs Experimental Design and Results Research data Experimental design Experimental Results Concluding Remarks References
키워드
Multiclass Support Vector Machines; Directed Acyclic Graph; Error-Correcting Output Code; Bond Rating
저자
Hyunchul Ahn [ Department of Business Administration, College of Social Sciences, Sungshin Women’s University ]
Kyoung-jae Kim [ Department of Management Information Systems, Dongguk University ]