International Journal of Advances in Intelligent Informatics
Vol 5, No 3 (2019): November 2019

Optimization of data resampling through GA for the classification of imbalanced datasets

Filippo Galli (TeCIP Institute, Scuola Superiore Sant’Anna, via Moruzzi 1)
Marco Vannucci (TeCIP Institute, Scuola Superiore Sant’Anna, via Moruzzi 1)
Valentina Colla (TeCIP Institute, Scuola Superiore Sant’Anna, via Moruzzi 1)



Article Info

Publish Date
29 Oct 2019

Abstract

Classification of imbalanced datasets is a critical problem in numerous contexts. In these applications, standard methods are not able to satisfactorily detect rare patterns due to multiple factors that bias the classifiers toward the frequent class. This paper overview a novel family of methods for the resampling of an imbalanced dataset in order to maximize the performance of arbitrary data-driven classifiers. The presented approaches exploit genetic algorithms (GA) for the optimization of the data selection process according to a set of criteria that assess each candidate sample suitability. A comparison among the presented techniques on a set of industrial and literature datasets put into evidence the validity of this family of approaches, which is able not only to improve the performance of a standard classifier but also to determine the optimal resampling rate automatically. Future activities for the improvement of the proposed approach will include the development of new criteria for the assessment of sample suitability.

Copyrights © 2019






Journal Info

Abbrev

IJAIN

Publisher

Subject

Computer Science & IT

Description

International journal of advances in intelligent informatics (IJAIN) e-ISSN: 2442-6571 is a peer reviewed open-access journal published three times a year in English-language, provides scientists and engineers throughout the world for the exchange and dissemination of theoretical and ...