EBBA: An Enhanced Binary Bat Algorithm Integrated with Chaos Theory and Lévy Flight for Feature Selection

Jinghui Feng, Haopeng Kuang and Lihua Zhang
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Jinghui Feng: Academy for Engineering & Technology, Fudan University, Shanghai 200433, China
Haopeng Kuang: Academy for Engineering & Technology, Fudan University, Shanghai 200433, China
Lihua Zhang: Academy for Engineering & Technology, Fudan University, Shanghai 200433, China

Future Internet, 2022, vol. 14, issue 6, 1-16

Abstract: Feature selection can efficiently improve classification accuracy and reduce the dimension of datasets. However, feature selection is a challenging and complex task that requires a high-performance optimization algorithm. In this paper, we propose an enhanced binary bat algorithm (EBBA) which is originated from the conventional binary bat algorithm (BBA) as the learning algorithm in a wrapper-based feature selection model. First, we model the feature selection problem and then transfer it as a fitness function. Then, we propose an EBBA for solving the feature selection problem. In EBBA, we introduce the Lévy flight-based global search method, population diversity boosting method and chaos-based loudness method to improve the BA and make it more applicable to feature selection problems. Finally, the simulations are conducted to evaluate the proposed EBBA and the simulation results demonstrate that the proposed EBBA outmatches other comparison benchmarks. Moreover, we also illustrate the effectiveness of the proposed improved factors by tests.

Keywords: feature selection; bat algorithm; optimization; chaos theory; Lévy flight (search for similar items in EconPapers)
JEL-codes: O3 (search for similar items in EconPapers)
Date: 2022
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