Dellavalle Robert P, Schilling Lisa M, Rodriguez Marko A, Van de Sompel Herbert, Bollen Johan
Department of Veterans Affairs Medical Center, Denver, USA.
J Am Acad Dermatol. 2007 Jul;57(1):116-9. doi: 10.1016/j.jaad.2007.03.005. Epub 2007 May 17.
Thomson Institute for Scientific Information's journal impact factor, the most common measure of journal status, is based on crude citation counts that do not account for the quality of the journals where the citations originate. This study examines how accounting for citation origin affects the impact factor ranking of dermatology journals.
The 2003 impact factors of dermatology journals were adjusted by a weighted PageRank algorithm that assigned greater weight to citations originating in more frequently cited journals.
Adjusting for citation origin moved the rank of the Journal of the American Academy of Dermatology higher than that of the Archives of Dermatology (third to second) but did not affect the ranking of the highest impact dermatology journal, the Journal of Investigative Dermatology. The dermatology journals most positively affected by adjusting for citation origin were Contact Dermatitis (moving from 22nd to 7th in rankings) and Burns (21st to 10th). Dermatology journals most negatively affected were Seminars in Cutaneous Medicine and Surgery (5th to 14th), the Journal of Cutaneous Medicine and Surgery (19th to 27th), and the Journal of Investigative Dermatology Symposium Proceedings (26th to 34th).
Current measures of dermatology journal status do not incorporate survey data from dermatologists regarding which journals dermatologists esteem most.
Adjusting for citation origin provides a more refined measure of journal status and changes relative dermatology journal rankings.
汤姆森科学信息研究所的期刊影响因子是衡量期刊地位最常用的指标，它基于未经筛选的引用次数，没有考虑引用来源期刊的质量。本研究探讨了考虑引用来源如何影响皮肤科期刊的影响因子排名。
采用加权PageRank算法对2003年皮肤科期刊的影响因子进行调整，该算法对来自被引用频率更高期刊的引用赋予更大权重。
考虑引用来源后，《美国皮肤病学会杂志》的排名高于《皮肤病学文献》（从第三升至第二），但未影响影响因子最高的皮肤科期刊《皮肤病学研究杂志》的排名。受引用来源调整影响最大的皮肤科期刊是《接触性皮炎》（排名从第22升至第7）和《烧伤》（从第21升至第10）。受影响最大的皮肤科期刊是《皮肤医学与外科学研讨会》（从第5降至第14）、《皮肤医学与外科学杂志》（从第19降至第27）以及《皮肤病学研究杂志研讨会论文集》（从第26降至第34）。
目前衡量皮肤科期刊地位的指标未纳入皮肤科医生关于他们最看重哪些期刊的调查数据。
考虑引用来源能提供更精确的期刊地位衡量标准，并改变皮肤科期刊的相对排名。
