Chaotic predator-prey brain storm optimization for continuous optimization problems

Brain storm optimization algorithm, a new swarm intelligence algorithm, is inspired by collective behavior of human beings. A modified brain storm optimization algorithm called predator-prey brain storm optimization was developed by adding a predator-prey operation. In this paper, a chaotic operation is further added to the predator-prey brain storm optimization, which is therefore called chaotic predator-prey brain storm optimization, to improve its ability for continuous optimization problems. Simulation experiments are conducted for basic brain storm optimization, predator-prey brain storm optimization, and chaotic predator-prey brain storm optimization on 9 benchmark functions. Comparison verify that chaotic predator-prey brain storm optimization performs well in terms of solution accuracy.