摘要
认为文献、研究领域的学科交叉性一般使用其参考文献的所属学科分类(subject category,SC)来分析,而WoS(Web of Science)提供的参考文献数据并不包含学科分类,因此,有必要研究如何通过参考文献获取学科分类并分析学科交叉性。以图书情报领域为例,从学科分类的数量、分布以及差异性的角度分析图书情报领域的学科交叉性并以叠加图(overlay map)进行可视化。指出利用参考文献的学科分类分析学科交叉性的方法可以扩展到其他研究领域。
It is very important to make a comprehensive and rational judgment of the important control nodes in emergency information dissemination, in order to facilitate the actualization and optimization of the monitoring and warning, guidance and control. Based on the theory of super-network, this paper mainly studies the judgment of the important control nodes in the emergency information dissemination. In virtue of the issues and deficiencies of existing algorithm, this paper proposes a new algorithm to judge the important control nodes hrom the perspective of super-network. Finally, the new algorithm is illustrated through an example.
出处
《图书情报工作》
CSSCI
北大核心
2013年第1期108-111,148,共5页
Library and Information Service
基金
国家自然科学基金面上项目"科学结构特征及其演化动力学分析方法与应用研究"(项目编号:71173211)研究成果之一
关键词
学科交叉性
图书情报领域
叠加图
时序分析
emergency information dissemination super-network social network betweenness centrality
