Journal Article

FTDZOA: An Efficient and Robust FS Method with Multi-Strategy Assistance

Xie, Rongxiang, Xu, Lijuan, Chen, Fuqiang, Ye, Shitong

2024

Overview

Feature selection (FS) is a pivotal technique in big data analytics, aimed at mitigating redundant information within datasets and optimizing computational resource utilization. This study introduces an enhanced zebra optimization algorithm (ZOA), termed FTDZOA, for superior feature dimensionality reduction. To address the challenges of ZOA, such as susceptibility to local optimal feature subsets, limited global search capabilities, and sluggish convergence when tackling FS problems, three strategies are integrated into the original ZOA to bolster its FS performance. Firstly, a fractional order search strategy is incorporated to preserve information from the preceding generations, thereby enhancing ZOA’s exploitation capabilities. Secondly, a triple mean point guidance strategy is introduced, amalgamating information from the global optimal point, a random point, and the current point to effectively augment ZOA’s exploration prowess. Lastly, the exploration capacity of ZOA is further elevated through the introduction of a differential strategy, which integrates information disparities among different individuals. Subsequently, the FTDZOA-based FS method was applied to solve 23 FS problems spanning low, medium, and high dimensions. A comparative analysis with nine advanced FS methods revealed that FTDZOA achieved higher classification accuracy on over 90% of the datasets and secured a winning rate exceeding 83% in terms of execution time. These findings confirm that FTDZOA is a reliable, high-performance, practical, and robust FS method.

• Publisher: MDPI AG,MDPI
• Subject: Accuracy / Algorithms / Big Data / Classification / Comparative analysis / Computational linguistics / Datasets / differential strategy / Exploration / Feature selection / Flexibility / fractional order search strategy / Heuristic / Information processing / Language processing / Machine learning / Mathematical optimization / Methods / Natural language interfaces / Optimization algorithms / Optimization techniques / Resource utilization / triple mean point guidance strategy / zebra optimization algorithm