van Leeuwen Thed
CWTS, Leiden University, Willem Einthoven Gebouw, Wassenaarseweg 62a, PO Box 905, 2300 AX Leiden, The Netherlands.
Scientometrics. 2012 Aug;92(2):443-455. doi: 10.1007/s11192-012-0677-x. Epub 2012 Feb 29.
In this study the issue of the validity of the argument against the applied length of citation windows in Journal Impact Factors calculations is critically re-analyzed. While previous studies argued against the relatively short citation window of 1-2 years, this study shows that the relative short term citation impact measured in the window underlying the Journal Impact Factor is a good predictor of the citation impact of the journals in the next years to come. Possible exceptions to this observation relate to journals with relatively low numbers of publications, and the citation impact related to publications in the year of publication. The study focuses on five Journal Subject Categories from the science and social sciences, on normal articles published in these journals, in the 2 years 2000 and 2004.
在本研究中，对反对期刊影响因子计算中所采用的引用窗口时长这一观点的有效性问题进行了批判性重新分析。虽然此前的研究反对采用1 - 2年这种相对较短的引用窗口，但本研究表明，在期刊影响因子所依据的窗口中衡量的相对短期引用影响力，是未来几年期刊引用影响力的良好预测指标。这一观察结果的可能例外情况涉及出版物数量相对较少的期刊，以及与出版当年出版物相关的引用影响力。该研究聚焦于科学和社会科学领域的五个期刊学科类别，以及2000年和2004年在这些期刊上发表的常规文章。
