魏奇锋 石琳娜



摘要:利用WS小世界网络模型构建知识网络的结构演化模型,通过度与度分布、平均最短路径长度及集聚系数等参数变化反映结构的时序变化,通过平均知识存量及标准差计算反映知识主体的行为变化,从而有助于明确知识网络结构演化微观动力机制及其结构演化过程细节。模型中知识网络主体的价值优化预期是网络结构演化动力,网络结构演化具体过程则涉及知识网络价值计算、知识节点耦合成本计算以及关系边权重计算三方面。
关键词:WS小世界;知识网络;结构演化;适应行为
DOI:10.13956/j.ss.1001-8409.2017.07.29
中图分类号:G302;TP3015文献标识码:A 文章编号:1001-8409(2017)07-0135-06
A Study of Knowledge Network Structure Evolution Based on Smallworld Network
WEI Qifeng1, SHI Linna2
(1.Business School, Chengdu University of Technology, Chengdu 610059;
2. Science & Technology for Development Research Center of Sichuan Province, Chengdu 610041)
Abstract: In this paper, WS smallworld model is used to construct the structural evolution model of knowledge network, the time series change of structure is reflected by means of degree and degree distribution, mean shortest path length and aggregation coefficient, the behavior change of knowledge subject is reflected by means of the average stock of knowledge and standard deviation calculation, which helps to clarify the evolution mechanism of knowledge network structure and the details of evolution.In the model, the knowledge value optimization of network nodes is the dynamic mechanism of knowledge network structure evolution. And the concrete process of knowledge network structure evolution involves three aspects: knowledge network value calculation, knowledge node coupling cost calculation and relation edge weight calculation.
Key words:WS smallword model; knowledge network; structure evolution; adaptive behaviors
知識网络相关研究广泛出现在企业管理、产业集群、合作联盟及图书情报等研究领域。随着知识网络的演化发展,占据各网络节点的知识主体所赖以生存与成长的基础环境正不断发生着改变,致使知识主体的网络位置、可支配资源、权力关系等与其利益紧密相关的一系列属性也发生变化。知识主体则通过形成惯例或惯例异变,实施“适应行为”来契合知识网络演化需要,以获得更好发展。研究表明,知识网络演化与知识主体适应行为的交互影响是产业集群、知识联盟等跨组织联合体发展的内在动因,特定适应行为与网络体系结构的匹配也导致了跨组织联合体的演化呈现出不同阶段[1]。然而知识网络究竟如何演化发展?网络演化过程中知识主体的适应行为表现为何种规律?学者们对此莫衷一是。……