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  2. EUT Edizioni Università di Trieste
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  4. Working Paper Series - Dipartimento di scienze economiche, aziendali, matematiche e statistiche "Bruno de Finetti"
  5. Working Papers Series 2010, 1
  6. Effect of training set selection when predicting defaulter SMEs with unbalanced data
 
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Effect of training set selection when predicting defaulter SMEs with unbalanced data

Menardi, Giovanna
•
Torelli, Nicola
2011-01-12
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ISBN
978-88-8303-320-9
http://hdl.handle.net/10077/3897
  • Working Paper

Abstract
We focus on credit scoring methods to separate defaulter small and medium enterprises from non-defaulter ones. In this framework, a typical problem occurs because the proportion of defaulter firms is very close to zero, leading to a class imbalance problem. Moreover, a form of bias may affect the classification. In fact, classification models are usually based on balance sheet items of large corporations which are not randomly selected. We investigate how different criteria of sample selection may affect the accuracy of the classification and how this problem is strongly related to the imbalance of the classes.
Series
Working paper series - Dipartimento di scienze economiche, aziendali, matematiche e statistiche "Bruno de Finetti";01 - 2010
Subjects
  • Defaulter business

  • Training set selectio...

  • Unbalanced data

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en
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DEAMS_wp1_2010.pdf

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