Grey wolf optimizer (GWO) 2 Whale Optimization Algorithm (WOA) 2 confusion matrix 2 recall 2 precision 2 accuracy 2 K-Nearest Neighbors 2 pearson correlation coefficient (PCC) 2 spearman correlation coefficient (SCC) 2 Simulations 2 Intelligent optimization 2 multi-objectives optimization problems 2 Stochastic optimization 2 Global optimization 2 Convergence analysis 2 Search space exploration 2 Local search 2 Computational intelligence 2 Robust optimization 2 Performance analysis 2 Simulated annealing 2 Differential evolution (DE) 2 Ant colony optimization (ACO) 2 Particle swarm optimization (PSO) 2 Genetic algorithm (GA) 2 mathematical optimization 2 genetic-algorithm 2 dimensionality reduction 2 mutual information 2 optimization 2 engineering optimization problems 1 clustering 1 k-center clustering 1 data points 1 centers 1 euclidean distance 1 maximum distance 1 NP-hard 1 computational complexity 1 covering problem 1 greedy algorithm 1 approximation algorithm 1 geometric algorithms 1 machine learning 1 pattern recognition 1 spatial analysis 1 graph theory 1 classification 1 clustering-methods 1 global-search 1 k-center-problem 1 kmeans 1 kmeans-clustering 1 mealpy 1 metaheuristic-based-clustering 1 particle-swarm-optimization 1 unsupervised-learning 1 whale-optimization-algorithm 1 feature selection 1 classification problem 1 feature selector 1 subset selection 1 wrapper methods 1 embedded methods 1 recursive feature selection 1 principal component analysis 1 PCA 1 lasso regularization 1 ridge regularization 1 random forest 1 support vector machine 1 relief 1 relief-f 1 decision-tree-classifier 1 dimensionality-reduction 1 feature-extraction 1 feature-selection 1 harris-hawks-optimization 1 knn-classifier 1 machine-learning 1 mutual-information 1 pearson-correlation-coefficient 1 subset-selection 1 svm-classifier 1 wrapper-methods 1