摘要
在综述国内外主题演化研究现状的基础上,提出将离群数据概念引入到主题演化规律分析中,详细阐述了基于离群文献的主题演化动力机制分析,最终探索了主题演化的状态变化情况。从而更加准确地定量分析不同主题在整个学科领域主题演化过程中的作用,并展示出学科主题演化的趋势,全面把握学科主题状况,促进主题全面发展。
This paper firstly introduced the outlier data mining and information entropy theory into the analysis of the theme evolution. It then described the dynamic mechanism of the theme evolution based on outlier documents and studied the change of the theme evolution. At last, it quantitatively analyzed the role of different themes in the process of the subject theme evolution and showed the development of the theme to master and promote the development of the subject theme.
出处
《情报杂志》
CSSCI
北大核心
2013年第6期59-63,共5页
Journal of Intelligence
关键词
主题演化演化规律学科主题
离群数据
离群主题动力机制
theme evolution the law of evaluation subject theme outlier data outlier theme the dynamic mechanism