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Efficient Hybrid Nature-Inspired Binary Optimizers for Feature Selection
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DOI：10.1007/s12559-019-09668-6.png)
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The process of dimensionality reduction is a crucial solution to deal with the dimensionality problem that may be faced when dealing with the majority of machine learning techniques. This paper proposes an enhanced hybrid metaheuristic approach using grey wolf optimizer (GWO) and whale optimization algorithm (WOA) to develop a wrapper-based feature selection method. The main objective of the proposed technique is to alleviate the drawbacks of both algorithms, including immature convergence and stagnation to local optima (LO). The hybridization is done with improvements in the mechanisms of both algorithms. To confirm the stability of the proposed approach, 18 well-known datasets are employed from the UCI repository. Furthermore, the classification accuracy, number of selected features, fitness values, and run time matrices are collected and compared with a set of well-known feature selection approaches in the literature. The results show the superiority of the proposed approach compared with both GWO and WOA. The results also show that the proposed hybrid technique outperforms other state-of-the-art approaches, significantly.
Keyword:
Whale optimization algorithm
Grey wolf optimizer
Optimization
Feature selection
Metaheuristics
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1.6K
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Binary grey wolf optimization approaches for feature selection基于二进制灰狼优化的特征选择方法.png)
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