An Enhanced Recursive Firefly Algorithm for Informative Gene Selection

Nassima Dif and Zakaria Elberrichi
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Nassima Dif: EEDIS Laboratory, Djillali Liabes University, Sidi Belabbes, Algeria
Zakaria Elberrichi: EEDIS Laboratory, Djillali Liabes University, Sidi Belabbes, Algeria

International Journal of Swarm Intelligence Research (IJSIR), 2019, vol. 10, issue 2, 21-33

Abstract: Feature selection is the process of identifying good performing combinations of significant features among many possibilities. This preprocess improves the classification accuracy and facilitates the learning task. For this optimization problem, the authors have used a metaheuristics approach. Their main objective is to propose an enhanced version of the firefly algorithm as a wrapper approach by adding a recursive behavior to improve the search of the optimal solution. They applied SVM classifier to investigate the proposed method. For the authors experimentations, they have used the benchmark microarray datasets. The results show that the new enhanced recursive FA (RFA) outperforms the standard version with a reduction of dimensionality for all the datasets. As an example, for the leukemia microarray dataset, they have a perfect performance score of 100% with only 18 informative selected genes among the 7,129 of the original dataset. The RFA was competitive compared to other state-of-art approaches and achieved the best results for CNS, Ovarian cancer, MLL, prostate, Leukemia_4c, and lymphoma datasets.

Date: 2019
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