“…To this end, GA (genetic Algorithm) [ 78 ], PSO (particle swarm optimization) [ 79 ], DE (differential evolution) [ 80 ], GWO (grey wolf optimizer) [ 81 ], MFO (moth-flame optimization) [ 82 ], SSA (salp swarm algorithm) [ 83 ], OSSA (OBL version of SSA), and CSSA (chaotic version of SSA) are considered in comparison with the proposed method. Two powerful evolutionary-based deep-learning models for COVID-19 detection, ADOPT [ 61 ], and DON [ 62 ], are also utilized as the competitive algorithms to show the strength of our proposed model. It should be noted that in the proposed method, the SVM model is used instead of the Softmax model to obtain better results.…”