Rankings
F1000 has a unique system for ranking articles and has now extended this system to rank the journals they are published in.
F1000 Faculty Members award a score each time they evaluate an article. The individual scores for each article are then used to calculate the F1000 Article Factors (FFa). These Factors form the core data from which F1000 calculates how articles and journals rank within each specialty. More »
Article Rankings
The more evaluations an article receives and the higher the scores, the higher its FFa and therefore its ranking.
The FFa is calculated from the highest score awarded by an F1000 Member plus an increment for each additional score from other FMs. The F1000 Article Factor is displayed by the article information, and the individual scores next to the each individual evaluation.
Using the FFa values, we calculate All Time Top 10s and Current Top 10s, which list the highest-ranked articles in each Faculty. Current Top 10 lists are compiled daily and include articles evaluated within the preceding 14 days. Hidden Jewels lists only include articles published in the more specialized journals that you might have missed in your general reading. To find other top-ranking articles in your specialty, filter Evaluations by FFa.
And if you want to see the articles in F1000 that your peers are reading, go to All Time Most Viewed and Current Most Viewed.
Journal Rankings
The F1000 Journal Factor (FFj) is a measure of how well an individual journal is performing on F1000. It is calculated from the individual FFa values and normalized according to the total number of articles each journal has published.
Journals are ranked by FFj down to Section (specialty) level. This allows you not only to see where our Members think the best research is being published in each specialty, but also where best to publish your own research. You can trace each FFj back to the evaluations by F1000 Members who scored each article, so you can see exactly which articles have contributed to a journal's place in the rankings.
F1000's Current Rankings are the most up-to-date measure of a journal's performance. They are calculated each month, based on the evaluations published in the previous 12 months, regardless of the publication date of the article.
Provisional Annual Rankings are published in July, calculated from evaluations of articles that have been published in the previous full calendar year, and allowing 6 months for evaluations to accumulate. The Final Annual Rankings allow at least 18 months for evaluations to accumulate.