Google proposes a new ranking for scientific journals based on Google Scholar, called Google Scholar Metrics (GSM)1. It establishes a slightly different image from the one created by Thomson Reuters and “its” impact factor.
The top 10 publications proposed by Google in comparison to the Thomson Reuters Index2
|Name of the journal||Google Scholars Ranking||Thomson Reuters Index|
|New England Journal of Medicine||2||1|
|RePEc||4||not considered as a journal|
|arXiv||5||not considered as a journal|
|Social Science Research Network||7||not considered as a journal|
|Proceedings of the National Academy of Sciences||9||11|
The initiative is quite interesting. First, there is no longer one single reference but at least two. The monopolistic position of Thomson Reuters is slightly challenged. Second, with RePEc, ArXiv and Social Science Research Network, Google takes into account initiatives outside the medical and biological fields, which is beneficial for a broader image of what science is.
The limits of Google Scholar Metrics appear however quickly when I tried to use it for historical journals. In the English top-100 list, no historical journal is recorded. In the German top 100, one historical journal – Historische Sozialforschung – is listed at 33. And in the French top 100, Genèses (48) and Annales (57) represent history. If you ask GSM for the most influential journals in history you get the following top ten:
- The Journal of Economic History
- Studies In History and Philosophy of Science Part B: Studies In History and Philosophy of Modern Physics
- The Economic History Review
- Explorations in Economic History
- Journal of Natural History
- Amsterdam Studies in the theory and history of linguist science series 4
- Comparative Studies in Society and History
- The International Journal of the History of Sport
- Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences
- Studies In History and Philosophy of Science Part A
If I am quite pleased by the importance of journals dedicated to science studies3, it does clearly not represent the major trends in the field. So I wonder if Google Scholar Metrics will be another Google Beta project that will disappear in a few months or if it will be improved by a new magic Google algorithm.