Title Sensitivity versus accuracy in multiclass problems using memetic pareto evolutionary neural networks
Authors Fernández Caballero J.C. , MARTÍNEZ ESTUDILLO, FRANCISCO JOSÉ, Hervas C. , Gutierrez P.A.
External publication No
Means IEEE Trans Neural Networks
Scope Article
Nature Científica
JCR Quartile 1
JCR Impact 2.63300
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-77951937354&doi=10.1109%2fTNN.2010.2041468&partnerID=40&md5=1d9c4d0a943ad67464d913552e4804db
Publication date 01/01/2010
ISI 000277337200004
Scopus Id 2-s2.0-77951937354
DOI 10.1109/TNN.2010.2041468
Abstract This paper proposes a multiclassification algorithm using multilayer perceptron neural network models. It tries to boost two conflicting main objectives of multiclassifiers: a high correct classification rate level and a high classification rate for each class. This last objective is not usually optimized in classification, but is considered here given the need to obtain high precision in each class in real problems. To solve this machine learning problem, we use a Pareto-based multiobjective optimization methodology based on a memetic evolutionary algorithm. We consider a memetic Pareto evolutionary approach based on the NSGA2 evolutionary algorithm (MPENSGA2). Once the Pareto front is built, two strategies or automatic individual selection are used: the best model in accuracy and the best model in sensitivity (extremes in the Pareto front). These methodologies are applied to solve 17 classification benchmark problems obtained from the University of California at Irvine (UCI) repository and one complex real classification problem. The models obtained show high accuracy and a high classification rate for each class. © 2010 IEEE.
Keywords Bench-mark problems; Best model; Classification ,; Classification rates; Evolutionary approach; Evolutionary neural network; High precision; Local search; Machine learning problem; Memetic; Memetic ev
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