不同数据库H指数的差异分析及改进

Difference Analysis and Improvement of Hindex in Different Databases

在SCI引文数据库及Scopus数据库中,同一科学家的H指数却不相同,给评价科学家的学术成就带来不便。选取物理学领域为研究方向,用SPSS统计学软件拟合SCI及Scopus数据库中同一科学家的H指数,得出对应的定量关系,通过实证分析得出差异的主要原因。然后,以Scopus数据库为例,考察相同情况下数据库收录论文年限对科学家H指数的影响,并根据引文的时间不同对H指数产生的影响,提出改进H指数的TH指数,最后,在物理学领域给出相应的实证分析。

The same scientist has not the same H index in SCI citation database and Scopus database respectively, which brings great inconvenience in evaluating the academic achievements of scientific researchers. Selecting the field of physics subject, the authors get quantitative relationship of H index of the same physical scientist in these two different databases using SPSS statistical software, and conclude the main reasons. Then, choosing Scopus database as source, the authors analyze the impact of the time of citation to H in- dex, and develop TH index accordingly. Finally the corresponding empirical analysis is given in the field of physics.