Review of Swarm Intelligence-based Feature Selection Methods

TL;DR

This paper reviews swarm intelligence-based feature selection methods, analyzing their strengths and weaknesses, and provides a comparative overview of recent algorithms to address high-dimensional data challenges.

Contribution

It offers a comprehensive categorization and evaluation of swarm intelligence algorithms applied to feature selection, highlighting recent advancements and comparative insights.

Findings

Identifies key strengths and weaknesses of swarm intelligence methods

Provides a comparative analysis of recent algorithms

Highlights effectiveness in high-dimensional data reduction

Abstract

In the past decades, the rapid growth of computer and database technologies has led to the rapid growth of large-scale datasets. On the other hand, data mining applications with high dimensional datasets that require high speed and accuracy are rapidly increasing. An important issue with these applications is the curse of dimensionality, where the number of features is much higher than the number of patterns. One of the dimensionality reduction approaches is feature selection that can increase the accuracy of the data mining task and reduce its computational complexity. The feature selection method aims at selecting a subset of features with the lowest inner similarity and highest relevancy to the target class. It reduces the dimensionality of the data by eliminating irrelevant, redundant, or noisy data. In this paper, a comparative analysis of different feature selection methods is presented, and a general categorization of these methods is performed. Moreover, in this paper, state-of-the-art swarm intelligence are studied, and the recent feature selection methods based on these algorithms are reviewed. Furthermore, the strengths and weaknesses of the different studied swarm intelligence-based feature selection methods are evaluated.