Identification of unstable individuals in dynamic networks  

作　　者：Dongli Duan Tao Chai Xixi Wu Chengxing Wu Shubin Si Genqing Bian 段东立;柴涛;武茜茜;吴成星;司书宾;边根庆(School of Information and Control Engineering,Xi'an University of Architecture and Technology,Xi'an 710311,China;School of Mechanical Engineering,Northwestern Polytechnical University,Xi'an 710072,China;Key Laboratory of Industrial Engineering and Intelligent Manufacturing(Ministry of Industry and Information Technology),Northwestern Polytechnical University,Xi'an 710072,China)

机构地区：[1]School of Information and Control Engineering,Xi'an University of Architecture and Technology,Xi'an 710311,China [2]School of Mechanical Engineering,Northwestern Polytechnical University,Xi'an 710072,China [3]Key Laboratory of Industrial Engineering and Intelligent Manufacturing(Ministry of Industry and Information Technology),Northwestern Polytechnical University,Xi'an 710072,China

出　　处：《Chinese Physics B》2021年第9期136-142,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.72071153 and 71771186);Key Laboratory of Science and Technology on Integrated Logistics Support(Grant Nos.6142003190102);the Natural Science Foundation of Shaanxi Province,China(Grant Nos.2020JM-486);the China Postdoctoral Science Foundation(Grant No.2017M613336).

摘　　要：To identify the unstable individuals of networks is of great importance for information mining and security management.Exploring a broad range of steady-state dynamical processes including biochemical dynamics,epidemic processes,birth-death processes and regulatory dynamics,we propose a new index from the microscopic perspective to measure the stability of network nodes based on the local correlation matrix.The proposed index describes the stability of each node based on the activity change of the node after its neighbor is disturbed.Simulation and comparison results show our index can identify the most unstable nodes in the network with various dynamical behaviors,which would actually create a richer way and a novel insight of exploring the problem of network controlling and optimization.

关 键 词：NETWORK dynamic behaviors STABILITY PERTURBATION 

分 类 号：O157.5[理学—数学]