A hybrid feature selection method for credit scoring

Reliable credit scoring models played a very important role of retail banks to evaluate credit applications and it has been widely studied. The main objective of this paper is to build a hybrid credit scoring model using feature selection approach. In this study, we constructed a credit scoring mode...

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Main Authors: Sang Ha Van, Nam Nguyen Ha, Hien Nguyen Thi Bao
Format: Article
Language:English
Published: European Alliance for Innovation (EAI) 2017-03-01
Series:EAI Endorsed Transactions on Context-aware Systems and Applications
Subjects:
Online Access:http://eudl.eu/doi/10.4108/eai.6-3-2017.152335
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author Sang Ha Van
Nam Nguyen Ha
Hien Nguyen Thi Bao
author_facet Sang Ha Van
Nam Nguyen Ha
Hien Nguyen Thi Bao
author_sort Sang Ha Van
collection DOAJ
description Reliable credit scoring models played a very important role of retail banks to evaluate credit applications and it has been widely studied. The main objective of this paper is to build a hybrid credit scoring model using feature selection approach. In this study, we constructed a credit scoring model based on parallel GBM (Gradient Boosted Model), filter and wrapper approaches to evaluate the applicant’s credit score from the input features. Feature scoring expression are combined by feature important (Gini index) and Information Value. Backward sequential scheme is used for selecting optimal subset of relevant features while the subset is evaluated by GBM classifier. To reduce the running time, we applied parallel GBM classifier to evaluate the proposed subset of features. The experimental results showed that the proposed method obtained a higher predictive accuracy than a baseline method for some certain datasets. It also showed faster speed and better generalization than traditional feature selection methods widely used in credit scoring.
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spelling doaj.art-6be3baccbdbf48b4b3d366fcbfeccf702022-12-22T01:42:56ZengEuropean Alliance for Innovation (EAI)EAI Endorsed Transactions on Context-aware Systems and Applications2409-00262017-03-014111610.4108/eai.6-3-2017.152335A hybrid feature selection method for credit scoringSang Ha Van0Nam Nguyen Ha1Hien Nguyen Thi Bao2Department of Economic Information System, Academy of Finance, Hanoi, Viet Nam; sanghv@hvtc.edu.vnDepartment of Information Technology, VNU-University of Engineering and Technology, Hanoi, Viet NamDepartment of Corporate Finance, Academy of Finance, Hanoi, Viet NamReliable credit scoring models played a very important role of retail banks to evaluate credit applications and it has been widely studied. The main objective of this paper is to build a hybrid credit scoring model using feature selection approach. In this study, we constructed a credit scoring model based on parallel GBM (Gradient Boosted Model), filter and wrapper approaches to evaluate the applicant’s credit score from the input features. Feature scoring expression are combined by feature important (Gini index) and Information Value. Backward sequential scheme is used for selecting optimal subset of relevant features while the subset is evaluated by GBM classifier. To reduce the running time, we applied parallel GBM classifier to evaluate the proposed subset of features. The experimental results showed that the proposed method obtained a higher predictive accuracy than a baseline method for some certain datasets. It also showed faster speed and better generalization than traditional feature selection methods widely used in credit scoring.http://eudl.eu/doi/10.4108/eai.6-3-2017.152335Credit riskCredit scoringHybrid Feature selectionGBMRFEInformation Valuesand Machine learning
spellingShingle Sang Ha Van
Nam Nguyen Ha
Hien Nguyen Thi Bao
A hybrid feature selection method for credit scoring
EAI Endorsed Transactions on Context-aware Systems and Applications
Credit risk
Credit scoring
Hybrid Feature selection
GBM
RFE
Information Values
and Machine learning
title A hybrid feature selection method for credit scoring
title_full A hybrid feature selection method for credit scoring
title_fullStr A hybrid feature selection method for credit scoring
title_full_unstemmed A hybrid feature selection method for credit scoring
title_short A hybrid feature selection method for credit scoring
title_sort hybrid feature selection method for credit scoring
topic Credit risk
Credit scoring
Hybrid Feature selection
GBM
RFE
Information Values
and Machine learning
url http://eudl.eu/doi/10.4108/eai.6-3-2017.152335
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