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arXiv 2110.02206q-fin.RMcs.LGq-fin.ST
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基于机器学习的无担保贷款信用风险预测

Predicting Credit Risk for Unsecured Lending: A Machine Learning Approach

NMIMS MPSTME

K. S. Naik

摘要:

自20世纪90年代以来,技术领域和电子商务领域取得了重大进展,导致对无现金支付解决方案的需求呈指数级增长。这导致了对信用卡的需求增加,随之而来的是更高的信用违约的可能性,因此在一段时间内更高的拖欠率。本文的目的是建立一个现代的信用评分模型来预测信用违约的无担保贷款(信用卡),采用机器学习技术。由于贷款人可用于预测信贷违约的大部分客户支付数据是不平衡的(偏斜的),由于违约实例的有限子集,这对预测建模提出了挑战。在这项研究中,这一挑战是通过部署合成少数过采样技术(SMOTE)来解决的,SMOTE是一种经过验证的技术,可以从给定的数据集中消除这种不平衡。通过七种不同的机器学习模型运行研究数据集,结果表明,Light Gradient Boosting Machine(LGBM)分类器模型优于其他六种分类技术。因此,我们的研究表明,LGBM分类器模型能够更好地提供更高的学习速度,更高的效率和管理更大的数据量。我们预计,该模型的部署将使商业贷款机构和银行的决策者能够更好地及时预测信用违约。

英文摘要:

Since the 1990s, there have been significant advances in the technology space and the e-Commerce area, leading to an exponential increase in demand for cashless payment solutions. This has led to increased demand for credit cards, bringing along with it the possibility of higher credit defaults and hence higher delinquency rates, over a period of time. The purpose of this research paper is to build a contemporary credit scoring model to forecast credit defaults for unsecured lending (credit cards), by employing machine learning techniques. As much of the customer payments data available to lenders, for forecasting Credit defaults, is imbalanced (skewed), on account of a limited subset of default instances, this poses a challenge for predictive modelling. In this research, this challenge is addressed by deploying Synthetic Minority Oversampling Technique (SMOTE), a proven technique to iron out such imbalances, from a given dataset. On running the research dataset through seven different machine learning models, the results indicate that the Light Gradient Boosting Machine (LGBM) Classifier model outperforms the other six classification techniques. Thus, our research indicates that the LGBM classifier model is better equipped to deliver higher learning speeds, better efficiencies and manage larger data volumes. We expect that deployment of this model will enable better and timely prediction of credit defaults for decision-makers in commercial lending institutions and banks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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