The impact factor (IF) of scientific journals has acquired a major role in the evaluations of the output of scholars, departments and whole institutions. Typically papers appearing in journals with large values of the IF receive a high weight in such evaluations. However, at the end of the day one is interested in assessing the impact of individuals, rather than papers. Here we introduce Author Impact Factor (AIF), which is the extension of the IF to authors. The AIF of an author A in year $t$ is the average number of citations given by papers published in year $t$ to papers published by A in a period of $\Delta t$ years before year $t$. Due to its intrinsic dynamic character, AIF is capable to capture trends and variations of the impact of the scientific output of scholars in time, unlike the $h$-index, which is a growing measure taking into account the whole career path.
翻译:科学期刊的影响系数(IF)在评估学者、部门和整个机构的产出方面起了主要作用,通常,在IF价值较大的期刊上发表的论文在这种评价中具有很高的份量;然而,在一天结束时,我们感兴趣的是评估个人的影响,而不是论文;这里我们介绍作者影响系数(AIF),这是IF对作者的延伸;A类作者A年的美元是A类出版物在一年中发表的论文的平均引用次数($t);A类出版物在一年中发表,其发行期为$delta 吨美元,而美元比前一年多。由于其内在的动态性质,AIF能够反映学者科学产出在时间上的影响的趋势和变化,与美元指数不同,后者是考虑到整个职业道路的日益增长的尺度。