IBGJO: Improved Binary Golden Jackal Optimization with Chaotic Tent Map and Cosine Similarity for Feature Selection

Abstract

Feature selection is a crucial process in machine learning and data mining that identifies the most pertinent and valuable features in a dataset. It enhances the efficacy and precision of predictive models by efficiently reducing the number of features. This reduction improves classification accuracy, lessens the computational burden, and enhances overall performance. This study proposes the improved binary golden jackal optimization (IBGJO) algorithm, an extension of the conventional golden jackal optimization (GJO) algorithm. IBGJO serves as a search strategy for wrapper-based feature selection. It comprises three key factors: a population initialization process with a chaotic tent map (CTM) mechanism that enhances exploitation abilities and guarantees population diversity, an adaptive position update mechanism using cosine similarity to prevent premature convergence, and a binary mechanism well-suited for binary feature selection problems. We evaluated IBGJO on 28 classical datasets from the UC Irvine Machine Learning Repository. The results show that the CTM mechanism and the position update strategy based on cosine similarity proposed in IBGJO can significantly improve the Rate of convergence of the conventional GJO algorithm, and the accuracy is also significantly better than other algorithms. Additionally, we evaluate the effectiveness and performance of the enhanced factors. Our empirical results show that the proposed CTM mechanism and the position update strategy based on cosine similarity can help the conventional GJO algorithm converge faster.

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“…The GJO algorithm can be applied to electing the features. The traditional GJO technique is derived from the hunting strategy of golden jackal couples, and also adopted a swarm-based technique [24]. The foraging procedure involves searching for capturing prey, prey tracking neighboring prey, and attacking prey.…”

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“…GJO exhibits several advantages, including simple implementation, high stability, and a minimal number of adjustment parameters. Notably, many experts and scholars, such as Himansu [40], Jinzhong Zhang [41], and Kunpeng Zhang [42] et al, have applied this algorithm in various fields. Additionally, Essam et al [43] proposed an efficient version of GJO that effectively addressed the issue of skin cancer image segmentation.…”