Age Factors Aged Aging Alphapapillomavirus Article Data set Drift-flux model Drops Elderly Errors Flow pressure Friction Genetic algorithms Head and neck cancer Human papillomavirus Humans Learning algorithms Machine Learning (ML) Machine learning Machine-learning Mean square error Middle Aged Multilayer neural networks Multilayers perceptrons Neural networks Neural-networks Oropharyngeal Neoplasms Oropharynx cancer Papillomavirus Infections Particle swarm optimization (PSO)