摘要
利用聚类分析和多维标度技术对1987年农业科学文献进行了文章共引分析,即按被引次数及共引情况选出28篇文章作为分析对象,用多维标度技术把高维引文空间中的28个文献点以二维散点图的形式表示出来,并把这些点通过聚类分析圈成点群,根据这样的圈所提供的信息,分析讨论了农业科学及其文献的结构和特点。
In this paper, a co-citation analysis is made to the documents of agricultural science of the year 1987 by cluster analysis and multi-dimensional scaling. 28 articals are picked out as analytical objects according to the cited frequency and co-citation condition. 28 document dots in highdimensional citation space are showed with two dimentioned scattered dots diagram by multi-dimensional scaling technique, and these dots are circled to be dot groups through cluster analysis. Based on the information from the diagram, the agricultural science and the structure and characteristics of its documents are analyzed and discussed.
出处
《情报杂志》
CSSCI
北大核心
1993年第2期36-42,共7页
Journal of Intelligence
关键词
共引分析
农业科学
引文分析
co-citation analysis
document analysis
agricultural science
