Estimating the compressive strength of lightweight foamed concrete using different machine learning-based symbolic regression techniques - Onyelowe, Kennedy C.; Ebid, Ahmed M.; Fernandez Vinueza, Danilo Fernando; Estrada Brito, Néstor Augusto; Velasco, Nancy; Buñay, Jorge; Muhodir, Sabih Hashim; Imran, Hamza; Hanandeh, Shadi (Frontiers in Built Environment, 2024)