摘要
准确、科学、迅速地把握某领域的研究前沿,是科研人员和决策者共同关注的焦点。目前,利用引文分析探测研究前沿的方法较为单一,以同被引居多。为能更科学、更准确、更快捷地探测学科前沿,分别对直接引证、同被引和文献耦合3种方法进行探讨,并对其效果进行比较分析。结果发现,直接引证能够较早地探测较大较新的类,效果最好,同被引效果最差,直接引证和文献耦合相比,前者的聚类系数较大,说明其文献具有较高的内容相似性,也不容易遗漏新的研究领域。
How to accurately, scientifically and rapidly keep abreast the research fronts in a certain field is the hot point of both researchers and policymakers. Citation analysis, usually co-citation analysis, is a simple method used in study of research fronts. In order to more accurately, scientifically and rapidly find out the research fronts in a certain field, the results obtained by direct citation, co-citation and bibliographic coupling analyses were compared, showing that the efficiency of direction citation analysis is the best while that of co-citation analysis is the worst. The cluster coefficient of direct citation analysis was bigger than that of bibliographic coupling analysis, suggesting that the similarity is rather high in the contents of literature and the novel research fields would not be missed.
出处
《中华医学图书情报杂志》
CAS
2010年第4期8-10,31,共4页
Chinese Journal of Medical Library and Information Science
基金
辽宁省教育厅高等学校科研项目"辽宁省高校医学类重点学科发展方向的战略情报分析"(20060935)
关键词
研究前沿
直接引证
同被引
文献耦合
比较研究
research front
direct citation
co-citation
bibliographic coupling
comparative study
