作者-主题关联的学科知识网络构建与演化分析  

Construction and Evolution Analysis of Discipline Knowledge Network Based on Author-Topic Association

作　　者：何劲 关鹏[1,2] 王曰芬 HE Ji;GUAN Peng;WANG Yue-fen(School of Economics and Management,Nanjing University of Science&Technology,Nanjing 210094,China;Institute of Applied Mathematics,Chaohu University,Hefei 238000,China)

机构地区：[1]南京理工大学经济管理学院,江苏南京210094 [2]巢湖学院应用数学学院,安徽合肥238000

出　　处：《情报科学》2019年第1期56-62,67,共8页Information Science

基　　金：国家自然科学基金项目“新研究领域科学文献传播网络生长及对传播效果影响研究”(71373124)

摘　　要：【目的/意义】通过构建作者-主题关联的二模学科知识网络,度量作者在知识创新网络中的影响力,探寻研究活跃程度高、研究范围广、潜在合作空间大的重要学者,对于科学评价学者学术影响力,挖掘热点、前沿研究主题具有重要的指导作用。【方法/过程】基于AT主题模型抽取作者-主题关联矩阵,计算作者的研究主题强度,在此基础上构建作者-主题关联的二模学科知识网络,利用作者在网络中的中心性指标度量作者主题关联影响力;基于复杂网络结构分析方法对学科领域生命周期内作者-主题关联的学科知识网络进行演化分析。【结果/结论】实证分析表明作者主题关联影响力与基于引文的学术影响力和基于社交媒体的社会影响力指标形成有力互补,可用于核心作者以及热点、前沿主题探测。【Purpose/significance】By constructing the discipline knowledge network based on author-topic association,we can measure the academic influence of authors in this knowledge innovation network.So,the important scholars with high levels of active research,wide research scope,and large potential for cooperation could be found.This is very important for mining hot research topics and research fronts.【Method/process】To construct the discipline knowledge network based on author-topic association,the paper first extracts correlation matrix of authors and topics by AT topic model,then computes research topic intensity of authors.Meanwhile,we put forward method to measure authors’academic influence through centrality index in network.Next,the paper puts forward evaluation analysis method of network structure,by complexity network structure analysis theory.【Result/conclusion】We get important results through empirical analysis.The authors’academic influence based topic association is a powerful supplement to academic influence based on citation and social influence based on social media.Hence,it could be used to find core authors in field of discipline.

关 键 词：主题 AT主题模型 学科知识网络 作者主题关联影响力 演化分析 

分 类 号：G250.2[文化科学—图书馆学]