Competition between two kinds of information among random-walking individuals  

作　　者：刘真真 王兴元 王茂基 

机构地区：[1]School of Electronic and Information Engineering,Dalian University of Technology,Dalian 116024,China

出　　处：《Chinese Physics B》2012年第4期625-630,共6页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 61173183, 60973152, and 60573172);the Superior University Doctor Subject Special Scientific Research Foundation of China (Grant No. 20070141014);the Natural Science Foundation of Liaoning Province of China (Grant No. 20082165)

摘　　要：A model is proposed to describe the competition between two kinds of information among N random-walking individuals in an L x L square, starting from a half-and-half mixture of two kinds of information. Individuals remain or change their information according to their neighbors＇ information. When the moving speed of individuals v is zero, the two kinds of information typically coexist, and the ratio between them increases with L and decreases with N. In the dynamic case （v 〉 0）, only one information eventually remains, and the time required for one information being left scales as Td -v^αL^β^γ.A model is proposed to describe the competition between two kinds of information among N random-walking individuals in an L x L square, starting from a half-and-half mixture of two kinds of information. Individuals remain or change their information according to their neighbors＇ information. When the moving speed of individuals v is zero, the two kinds of information typically coexist, and the ratio between them increases with L and decreases with N. In the dynamic case （v 〉 0）, only one information eventually remains, and the time required for one information being left scales as Td -v^αL^β^γ.

关 键 词：information spread random walk complex networks power law 

分 类 号：O157.5[理学—数学]