Modeling And Analysis Of The Mobility Effect On Cooperative Behavior

Life originates from cooperation.Cooperation is an important foundation for the evolution of nature and human society.However,the phenomenon of overuse of public resources,such as tragedy of the commons and free-riding,indicates the difficulty of generating cooperation in a group composed of selfish individuals.Evolutionary game theory provides a strong framework for the study of cooperation relations between agents.Nowak has summarized five cooperation mechanisms,including kin selection and spatial reciprocity.Subsequently scholars carry out research on many mechanisms such as reputation,reward,punishment,and mobility.So far,the factors influencing cooperation and the mechanism of cooperation evolution are still not clear and need to be further explored.Therefore,the research was started on the game strategy of the agent and mobility mechanism.And the multi-agent modeling simulation experiment method was used,aiming at the spatial structure of the two-dimensional grid,the corresponding mechanisms to promote cooperation were proposed from the perspective of strategy updating rules,signal,and mobile cost,and the evolution mechanism was analyzed in depth.First of all,cooperative behavior evolution models based on learning optimal rule and Moran process were built respectively.Through simulation experiments,it is found that when the mobile probability of the agent is large,the Moran process promotes the cooperation more effectively,and the Moran process has strong anti-noise ability.Secondly,aiming at the signal transmission mechanism,the evolution of cooperative behavior was studied in the spatial signal game.The simulation results show that the signal,as a tag,promotes the aggregation of individuals who send the same signal to form clusters,and promotes cooperation,and it presents the phenomenon of group selection.Finally,aiming at the problem of mobile cost,a cooperative behavior evolution model with mobile cost was built.Research shows that mobile cost plays an important role in the process of cooperative evolution.With the addition of cost,the mobility of the agent is suppressed,the willingness to move is reduced,and the cooperators form clusters to resist the invasion of the defectors,and the cooperation level of the system is significantly improved.Figure 29;Table 5;Reference 73...