%0 Journal Article
%T Effect of spatial distance on search information correlation in complex systems
%A TingTing Zhao
%A Xu Cai
%J Chinese Science Bulletin
%@ 1861-9541
%D 2011
%I 
%R 10.1007/s11434-011-4795-2
%X 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.
%K spatial distance
%K search information
%K action radius
%K assortative mixing
%U http://link.springer.com/article/10.1007/s11434-011-4795-2