首页> 中文期刊> 《复杂系统与复杂性科学》 >二维网格上经纪人模仿引起的策略再分布

二维网格上经纪人模仿引起的策略再分布

     

摘要

为了考察演化的争当少数者博弈模型的经纪人分布在二维网格上时经纪人策略的可能分布图案,将演化的争当少数者博弈模型(EMG)建立在41x41的二维正方形网格上,考虑了单向网络和双向网络两种情况。数值模拟结果表明:无论是单向还是双向网络,节点的连接度(对于双向网络,指出度)以中等数值居多,经纪人的策略分布和连接网络结构经过演化都达到了有秩序有规律的稳态分布结构。单向的时候,一些节点组成了分块的社团类似结构,但是不会出现孤立点,度分布也比较均匀;%In order to investigate possible distribution pattern of strategies of agents in EMG mod‐el distributed on a two‐dimensional lattice ,we put an evolutionary minority game model on 41x41 two dimensional square lattice network .We consider two situations which include unidirectional network and bidirectional network .Simulation results show no matter unidirectional or bidirec‐tional network ,the connectivity degree of nodes (for bidirectional network ,it means out degree) is predominant at medium numbers .The distribution of agents'strategies and structure of net‐work reach orderly or regular stable distribution structure after evolution .When network is uni‐directional ,some nodes form bulked community like structure ,but there is no isolated node ,de‐gree distribution is relatively even .When network is bidirectional ,there is no apparent communi‐ty like structure ,but there are some small communities or even isolated node ,degree distribution region is somew hat larger ,but still be fairly even .

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