情报杂志2016，Vol.35Issue(12)：175-180,6.DOI:10.3969/j.issn.1002-1965.2016.12.031
基于核心词、突变词与新生词的学科主题演化方法研究
Research on the Method of Detecting Evolution of Subject Theme Based on Core Words, Burst Words and New Words
摘要
Abstract
Purpose/Significance] This paper puts forward a method of revealing the changing trend of subject theme based on tracking the changes of core words, burst words and new words in different time windows and combining with mapping knowledge domain. The method tries to integrate and improve existing ways of revealing the changing trend of subject theme based on the co-word analysis and mapping knowledge domain, to provide a more comprehensive and meticulous way of revealing subject evolution which can reduce diffi-culty of artificial identification knowledge mapping. [ Method/Process] The research creatively added the theme type differentiation and quantitative analysis of the characterized subject headings. Then it detected the trend of the subject theme variations according to frequency changes of different characterized subject headings. The definition and measure methods of key words, mutation words and new words were described. [ Result/Conclusion] The empirical analysis results and the acceptance of the results by experts in the field prove the feasi-bility and effectiveness of the method. The research has certain reference significance for future researches.关键词
共词分析/主题演化/知识图谱/核心词/突变词/新生词Key words
co-word analysis/theme evolution/mapping knowledge domain/core words/burst words/new words分类
社会科学引用本文复制引用
刘敏娟,张学福,颜蕴..基于核心词、突变词与新生词的学科主题演化方法研究[J].情报杂志,2016,35(12):175-180,6.基金项目
中国农业科学院科技创新工程项目“文献信息与知识服务创新团队”(编号:CAAS-ASTIP-2016-AII)研究成果之一。 （编号:CAAS-ASTIP-2016-AII）
