Impact of imbalanced datasets preprocessing in the performance of associative classifiers

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Abstract

In this paper, an experimental study was carried out to determine the influence of imbalanced datasets preprocessing in the performance of associative classifiers, in order to find the better computational solutions to the problem of credit scoring. To do this, six undersampling algorithms, six oversampling algorithms and four hybrid algorithms were evaluated in 13 imbalanced datasets referring to credit scoring. Then, the performance of four associative classifiers was analyzed. The experiments carried out allowed us to determine which sampling algorithms had the best results, as well as their impact on the associative classifiers evaluated. Accordingly, we determine that the Hybrid Associative Classifier with Translation, the Extended Gamma Associative Classifier and the Naive Associative Classifier do not improve their performance by using sampling algorithms for credit data balancing. On the other hand, the Smallest Normalized Difference Associative Memory classifier was beneficiated by using oversampling and hybrid algorithms.

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Rangel-Díaz-de-la-Vega, A., Villuendas-Rey, Y., Yáñez-Márquez, C., Camacho-Nieto, O., & López-Yáñez, I. (2020). Impact of imbalanced datasets preprocessing in the performance of associative classifiers. Applied Sciences (Switzerland), 10(8). https://doi.org/10.3390/APP10082779

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