However , metaheuristics such as PSO do not guarantee an optimal solution is ever found .
PSO is a metaheuristic as it makes few or no assumptions about the problem being optimized and can search very large spaces of candidate solutions .
Metaheuristics such as PSO do not guarantee an optimal solution is ever found .
PSO is a metaheuristic as it makes few or no assumptions about the problem being optimized and can search very large spaces of candidate solutions .