OL-MFA: An Improved Moth Flame Algorithm for Feature Selection

Authors

Keywords:

feature selection, levy flight, moth flame algorithm, swarm intelligence

Abstract

Feature selection (FS) is an important and crucial task in machine learning. The goal of the feature selection problem is to reduce the dimension of the feature set and maintaining the accuracy of the performance at the same time. This paper presents an improved moth flame algorithm (MFA) to solve the FS problem. The algorithm is improved by integrating opposition based learning (OBL) and levy flights with the original moth flame algorithm (MFA). This improvisation is done to overcome the premature convergence and local optima problem of MFA. The proposed algorithm (OL-MFA) is a swarm intelligent algorithm (SIA) that mimics moths’ navigation behavior in nature. The moths navigate toward the real-light source (moon) with a straight path and a fixed angle which is called transverse orientation. Moreover, moths are highly attracted to artificial lights such as flames, and because of the close distance, they change their flight angles continuously, which forms a spiral path.  Opposition based learning (OBL) is used to address the premature convergence problem. The search strategy of levy flight works as a regulator of the moth position update to maintain decent population diversity and expand the algorithm's global search capability. The proposed approach is compared against the five swarm intelligence algorithms (SIAs) in terms of metrics, including entropy, purity, completeness score (CS), and homogeneity score (HS). The SSE fitness function is used for fitness evaluation. The results have established that the proposed algorithm is superior over the other state of the art counterparts.

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Basic MFA Algorithm

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Published

01.10.2022

How to Cite

Sureja, N. ., Patel, P. ., Kadia, P. ., & Vala, N. . (2022). OL-MFA: An Improved Moth Flame Algorithm for Feature Selection. International Journal of Intelligent Systems and Applications in Engineering, 10(3), 356–364. Retrieved from https://ijisae.org/index.php/IJISAE/article/view/2176

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Research Article