Regulation of Network Condensation Based on Fitness Ordered Access
To find theoretically an effective antitrust policy,we design an access rule for nodes based on the rearrangement of their fitness and study its effect on the topology condensation from the perspective of complex network theory.By Monte-Carlo simulations and the finite size scaling analysis,we obtain the critical rearrangement index for a typical class of fitness distribution and establish the condensation phase diagram.The phase diagram shows that there exists an interval of the critical rearrangement index,outside which the condensation will be effectively sup-pressed;the phase diagram is asymmetric in structure and the critical reverse-rearrangement in-dex diverges in a nonlinear manner.These results can explain the present monopolistic behavior by internet firms and provide useful suggestion for the corresponding anti-monopoly policy.
万方数据
维普
