摘要
通过对近年来发表的国内外有关油菜文献的关键词词频统计,以及对关键词形成的共词矩阵进行聚类分析,反映出近年来国内外在油菜研究领域的热点问题以及研究动向,并对国内外研究热点的差异展开讨论,为油菜研究工作者提供参考。
The paper has conducted cluster analysis of co-word matrixes through key word frequency statistics of rapeseed papers published in recent years both at home and abroad, which have reflected hot spots and research orientation in rapeseed research both at home and abroad, discussed the differences of research hot spots both at home and abroad, and provided reference for rapeseed research worker in China.
出处
《农业图书情报学刊》
2005年第9期141-144,158,共5页
Journal of Library and Information Sciences in Agriculture
关键词
油菜
词频统计
共词矩阵
聚类分析
rape
statistics of word frequency
co-word matrix
cluster analysis
