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作 者:李佳悦 邵桂芳 LI Jiayue;SHAO Guifang(Library of Xiamen University,422 South Siming Road,Siming District,Xiamen 361005,China;School of Aerospace Engineering,Xiamen University,422 South Siming Road,Siming District,Xiamen 361005,China)
机构地区:[1]厦门大学图书馆,福建省厦门市361005 [2]厦门大学航空航天学院,福建省厦门市361005
出 处:《中国科技期刊研究》2019年第8期897-904,共8页Chinese Journal of Scientific and Technical Periodicals
摘 要:【目的】探讨单篇高被引文献与期刊影响因子波动的内在关系,对推动期刊评价理论与实践的发展具有重要意义。【方法】采用文献计量学方法,以Nature、Science等20种国际顶级期刊以及Acta Crystallographica Section A、Chinese Physics C期刊为例,通过查询Web of Science数据库,分析期刊载文量、总被引频次、单篇文献的最大被引频次、文献的平均被引频次等文献计量学指标的变化情况。【结果】单篇文献的最大被引频次与期刊总被引频次之比RHT、单篇文献的最大被引频次与期刊平均被引频次之比RHM,以及期刊的平均被引频次与去除最大被引频次文献之后的平均值之比REM,对于影响因子的正常与异常波动表现出不同的特征和规律。【结论】RHT、REM和RHM这3项比值可以被用来有效地评判期刊影响因子的变化是否正常,从而为期刊影响因子的计算以及期刊评价体系的合理构建提供参考。[Purposes]The exploration of intrinsic relationship between the highly cited paper and the fluctuation of journal impact factor is of significance for the development of theory and practice of journal's evaluation.[Methods]Based on the database of Web of Science,we took 20 international top journals ( such as Nature and Science) and 2 journals ( Acta Crystallographica Section A and Chinese Physics C) as examples to analyze the changes of bibliometric indices including the total number of papers,the total citations,the maximum number of citations,and the average number of citations.[Findings] RHT w hich is the ratio of the maximum number of citations to the total citations,RHM w hich is the ratio of the maximum number of citations to the average number of citations,and REM w hich is the ratio of the average number of citations to the corresponding value with the maximum number of citations removed all exhibit different characteristics and rules for the normal and abnormal fluctuations of impact factors.[Conclusions]RHT,REM,and RHM can be used to effectively discriminate w hether the fluctuation of impact factor is normal or not, hence providing a reference for the calculation of journal impact factor and the reasonable construction of journal evaluation system.
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