论文标题
比较子场对科学期刊的影响
Comparing the impact of subfields in scientific journals
论文作者
论文摘要
在过去几年中，影响因素已广泛用于评估期刊的可见性和声望。虽然影响因素对于比较期刊很有用，但只要仅在期刊级别测量可见度时，就会忽略期刊可见性的特异性。在本文中，我们分析了超过450,000个物理论文的子集的子场。我们表明，在考虑的数据集中，子字段的可见性并不常规。特别是几年，子场的变异性影响因素，期刊达到了平均子场影响因子的75％。我们还发现，同一期刊中的子字段可见度的差异甚至高于不同期刊之间可见性差异。我们的结果表明，子场的影响是期刊可见性的重要因素。
The impact factor has been extensively used in the last years to assess journals visibility and prestige. While the impact factor is useful to compare journals, the specificities of subfields visibility in journals are overlooked whenever visibility is measured only at the journal level. In this paper, we analyze the subfields visibility in a subset of over 450,000 Physics papers. We show that the visibility of subfields is not regular in the considered dataset. In particular years, the variability in subfields impact factor in a journal reached 75% of the average subfields impact factor. We also found that the difference of subfields visibility in the same journal can be even higher than the difference of visibility between different journals. Our results show that subfields impact is an important factor accounting for journals visibility.
