研究目的
To propose a new hybrid metaheuristic algorithm combining spotted hyena optimization (SHO) and simulated annealing (SA) for solving the feature selection problem, aiming to improve classification accuracy and reduce the number of selected features.
研究成果
The SHOSA-1 algorithm significantly improves classification accuracy and reduces the number of selected features compared to other wrapper-based optimization algorithms. It demonstrates excellent performance in spatial search and feature attribute selection, making it a promising approach for feature selection problems.
研究不足
SHOSA-1 is not recommended for large datasets due to its long running time. The algorithm's performance on very high-dimensional data needs further investigation.
1:Experimental Design and Method Selection:
Two hybrid models (SHOSA-1 and SHOSA-2) were designed based on SHO and SA for feature selection. SHOSA-1 embeds SA within SHO after each iteration, while SHOSA-2 uses SA to enhance the final solution from SHO.
2:Sample Selection and Data Sources:
The performance of the proposed methods was evaluated on 20 datasets from the UCI repository.
3:List of Experimental Equipment and Materials:
The implementation was done using MATLAB on an i5 machine with a 3GHz CPU and 4GB of RAM.
4:Experimental Procedures and Operational Workflow:
Each algorithm was run separately for 30 times on each dataset. The KNN classifier based on Euclidean distance matrix (K=5) was used for evaluation.
5:Data Analysis Methods:
The performance was evaluated based on classification accuracy, average selection size, best and worst fitness, mean fitness, standard deviation, and average running time.
独家科研数据包,助您复现前沿成果,加速创新突破
获取完整内容