Abstract
Gene selection methods are critical in cancer classification, which depends on the expression of a small number of biomarker genes, which have been a significant issue of enormous recent studies. Microarray technology allows generating tumors gene expression datasets. Cancer classification based on these datasets commonly has a kind of small sample size against the number of genes involved and includes multiclass categories. In this paper, grey wolf algorithm was used for extracting notable features in the pre-processing stage, and deep neural network (DNN) was used as deep learning for improving the accuracy degree of cancer detection from three datasets, i.e., STAD (Stomach adenocarcinoma), LUAD (lung adenocarcinoma) and BRCA (breast invasive carcinoma). The proposed method achieved the highest accuracy for these three datasets. The proposed method was able to achieve accuracy close to 100. Furthermore, the proposed method was compared with linear support vector machine classification, RBF, the nearest neighbor, linear regression, one vs. all, Naive Bayes, and decision tree algorithms. The proposed method had 0.57 improvement on the LUAD dataset, 1.11 optimization on the STAD dataset, and 0.78 development on the BRCA dataset.
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Hajieskandar, A., Mohammadzadeh, J., Khalilian, M. et al. Molecular cancer classification method on microarrays gene expression data using hybrid deep neural network and grey wolf algorithm. J Ambient Intell Human Comput 14, 5297–5307 (2023). https://doi.org/10.1007/s12652-020-02478-x
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DOI: https://doi.org/10.1007/s12652-020-02478-x