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• W3046234331 abstract "Credit ratings are one of the primary keys that reflect the level of riskiness and reliability of corporations to meet their financial obligations. Rating agencies tend to take extended periods of time to provide new ratings and update older ones. Therefore, credit scoring assessments using artificial intelligence has gained a lot of interest in recent years. Successful machine learning methods can provide rapid analysis of credit scores while updating older ones on a daily time scale. Related studies have shown that neural networks and support vector machines outperform other techniques by providing better prediction accuracy. The purpose of this paper is two fold. First, we provide a survey and a comparative analysis of results from literature applying machine learning techniques to predict credit rating. Second, we apply ourselves four machine learning techniques deemed useful from previous studies (Bagged Decision Trees, Random Forest, support vector machine and Multilayer Perceptron) to the same datasets. We evaluate the results using a 10-fold cross validation technique. The results of the experiment for the datasets chosen show superior performance for decision tree based models. In addition to the conventional accuracy measure of classifiers, we introduce a measure of accuracy based on notches called ”Notch Distance” to analyze the performance of the above classifiers in the specific context of credit rating. This measure tells us how far the predictions are from the true ratings. We further compare the performance of three major rating agencies, Standard & Poors, Moody’s and Fitch where we show that the difference in their ratings is comparable with the decision tree prediction versus the actual rating on the test dataset." @default.
• W3046234331 created "2020-08-07" @default.
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• W3046234331 date "2020-11-01" @default.
• W3046234331 modified "2023-09-30" @default.
• W3046234331 title "A comparative study of forecasting corporate credit ratings using neural networks, support vector machines, and decision trees" @default.
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• W3046234331 doi "https://doi.org/10.1016/j.najef.2020.101251" @default.
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