Effect of spatial distance on search information correlation in complex systems  

作　　者：ZHAO TingTing CAI Xu 

机构地区：[1]Complexity Science Center, Institute of Particle Physics, Central China Normal University, Wuhan 430079, China

出　　处：《Chinese Science Bulletin》2011年第34期3671-3676,共6页

基　　金：supported by the National Natural Science Foundation of China (10647125, 10635020, 10975057 and 10975062);the Program of Introducing Talents of Discipline to Universities (B08033)

摘　　要：Spatial distance has a remarkable effect on the attended mode of a network embedded in a certain space. First, we investigate how spatial restriction leads to information-information correlation that is strong, linear and positive in real networks. We then construct a two-dimensional space, define the action radius R for nodes of networks, and propose a class of models that depend on spatial distance. Information correlation of the models is consistent with that of real networks. The spatial distance plays a leading role in generating assortative mixing by degree, while the generation of disassortative mixing relies on both the degree of preferential attachment and spatial restriction.Spatial distance has a remarkable effect on the attended mode of a network embedded in a certain space. First, we investigate how spatial restriction leads to information-information correlation that is strong, linear and positive in real networks. We then construct a two-dimensional space, define the action radius R for nodes of networks, and propose a class of models that depend on spatial distance. Information correlation of the models is consistent with that of real networks. The spatial distance plays a leading role in generating assortative mixing by degree, while the generation of disassortative mixing relies on both the degree of preferential attachment and spatial restriction.

关 键 词：空间距离 相关信息 复杂系统 搜索 网络模式 网络节点 空间限制 优惠政策 

分 类 号：N941.4[自然科学总论—系统科学]