Vol.7, No.1, February 2018.                                                                                                                                                                     ISSN: 2217-8309

                                                                                                                                                                                                                eISSN: 2217-8333


TEM Journal



Association for Information Communication Technology Education and Science

Cost-Sensitive Learning from Imbalanced Datasets for Retail Credit Risk Assessment


Stjepan Oreški, Goran Oreški


© 2018 Stjepan Oreški, published by UIKTEN. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. (CC BY-NC-ND 4.0)


Citation Information: TEM Journal. Volume 7, Issue 1, Pages 59-73, ISSN 2217-8309, DOI: 10.18421/TEM71-08, February 2018.


Received: 14 November 2017
Accepted: 24 January 2018
Published: 23 February 2018




In the present study we propose a new classification technique based on genetic algorithm and neural network, optimized for the cost-sensitive measure and applied to retail credit risk assessment. The relative cost of misclassification, which properly accounts for different misclassification costs of minority and majority classes, is used as the primary evaluation measure. The test of the new algorithm is performed on Croatian and German retail credit datasets for seven different cost ratios. An empirical comparison with others in the literature presented models demonstrates the potential of the new technique in terms of misclassification costs.


Keywords – genetic algorithm; neural network; credit risk assessment; imbalanced datasets; misclassification cost.



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