摘要
首次提出如何利用样本矩阵求共现矩阵,使计算共现矩阵理论化、规范化、软件实现化,本文提出共现矩阵行、列忽略法来计算K-核,并利用这些工具分析了2006年知识管理领域关键词的共现强度,并绘出了关键词的共现强度距离的聚类图,并分析了关键词共现强度之间产生距离远、近的原因。
This paper proposed how to use the sample matrix to get co-oceurrenee matrix for the first time, to make the co-occurrence matrix calculate theofizafion, standardization and software using. Also, this paper presented the neglect- method of row and line of co-occurrence to calculate K-core, analyzed the co-occurrence strength of key - words in the knowledge management field in 2006 based on this tools, and drew the cluster map of keywords of co- occurrence to analyze the reason for making distance between keywords.
出处
《现代情报》
北大核心
2008年第5期30-33,共4页
Journal of Modern Information
关键词
知识管理领域
关键词的共现强度
聚类分析
共现矩阵
knowledge management field
co-occurrence strength of key- words
cluster analysis
co-occurrence matrix
