Multiobjective Bak–Sneppen model on a small-world network

Small-world networks (SWN) are relevant to biological systems. We study the dynamics of the Bak–Sneppen (BS) model on small-world network, including the concepts of extremal dynamics, multiobjective optimization and coherent noise. We find that the small-world structure stabilizes the system. Also, it is more realistic to augment the Bak–Sneppen model by these concepts.