使用欧盟委员会国家建议来预测主权评级:主题建模方法

Q1 Engineering
Ivan Pastor Sanz
{"title":"使用欧盟委员会国家建议来预测主权评级:主题建模方法","authors":"Ivan Pastor Sanz","doi":"10.1016/j.eswax.2020.100026","DOIUrl":null,"url":null,"abstract":"<div><p>This paper examines the role of textual and unstructured data in the credit risk assessment of sovereigns. Specifically, in this paper, a novel approach to understand and predict sovereign ratings is proposed. For that purpose, information embedded in the annual country reports issued by the European Commission is used. The model employs a neural-network-based document embedding known as document to vector (Doc2Vec) to convert each country report into a numerical vector, which is then used as features into a logistic regression. The model is trained using information from 2011 to 2019 and it correctly predicts the 70.27% of country ratings in the test sample, improving slightly the results obtained using only macroeconomic variables.</p></div>","PeriodicalId":36838,"journal":{"name":"Expert Systems with Applications: X","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.eswax.2020.100026","citationCount":"2","resultStr":"{\"title\":\"Using the European Commission country recommendations to predict sovereign ratings: A topic modeling approach\",\"authors\":\"Ivan Pastor Sanz\",\"doi\":\"10.1016/j.eswax.2020.100026\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This paper examines the role of textual and unstructured data in the credit risk assessment of sovereigns. Specifically, in this paper, a novel approach to understand and predict sovereign ratings is proposed. For that purpose, information embedded in the annual country reports issued by the European Commission is used. The model employs a neural-network-based document embedding known as document to vector (Doc2Vec) to convert each country report into a numerical vector, which is then used as features into a logistic regression. The model is trained using information from 2011 to 2019 and it correctly predicts the 70.27% of country ratings in the test sample, improving slightly the results obtained using only macroeconomic variables.</p></div>\",\"PeriodicalId\":36838,\"journal\":{\"name\":\"Expert Systems with Applications: X\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/j.eswax.2020.100026\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Expert Systems with Applications: X\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2590188520300056\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Expert Systems with Applications: X","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2590188520300056","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 2

摘要

本文探讨了文本数据和非结构化数据在主权信用风险评估中的作用。具体而言,本文提出了一种理解和预测主权评级的新方法。为此目的,使用了欧洲委员会印发的国别年度报告中的资料。该模型采用基于神经网络的文档嵌入,称为文档到向量(Doc2Vec),将每个国家的报告转换为数字向量,然后将其作为特征用于逻辑回归。该模型使用2011年至2019年的信息进行训练,它正确预测了测试样本中70.27%的国家评级,略微改善了仅使用宏观经济变量获得的结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Using the European Commission country recommendations to predict sovereign ratings: A topic modeling approach

This paper examines the role of textual and unstructured data in the credit risk assessment of sovereigns. Specifically, in this paper, a novel approach to understand and predict sovereign ratings is proposed. For that purpose, information embedded in the annual country reports issued by the European Commission is used. The model employs a neural-network-based document embedding known as document to vector (Doc2Vec) to convert each country report into a numerical vector, which is then used as features into a logistic regression. The model is trained using information from 2011 to 2019 and it correctly predicts the 70.27% of country ratings in the test sample, improving slightly the results obtained using only macroeconomic variables.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Expert Systems with Applications: X
Expert Systems with Applications: X Engineering-Engineering (all)
CiteScore
3.80
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信