![]() Article Influence - Also developed by Eigenfactor, the Article Influence of a particular journal is determined by the average number of citations per article, as well as from which journals they came, and is similar to the Impact Factor."In 2006, the journal Nature has the highest Eigenfactor score, with a score of 1.992." This should assist you in interpreting the scores. The sum total of all the Eigenfactor scores is equal to 100. The score also reflects the volume of work a particular journal publishes, so journals which publish a higher quantity of articles will receive a high Eigenfactor score. Eigenfactor - Founded by researchers at the University of Washington, the Eigenfactor ranks journals according to the number of citations as well as giving extra weight to citations coming from highly ranked journals.The Impact Factor is therefore always reflecting one to two years in the past. This Impact Factor would then be published in the following year, so 2012. 20) in a particular journal receives citations in a given year (ex. Eugene Garfield, the Impact Factor of a journal indicates the average number of times articles (from the past two years, ex. Below are the most common measures used to determine journal ranking. Additionally, different organizations and institutions develop their own systems by which to determine relative rankings, like SCImago's SJR Indicator. Journals are ranked through a number of different means. A number of the "journals" listed are in fact databases, like arXiv Astrophysics. These can be separated out into large academic categories, however it should be noted that this measurement is somewhat inaccurate. ![]() Additionally, Google Scholar Metrics also ranks "journals" based on the relative H-index (see right).takes its data from Thomson Scientific's Journal Citation Reports (JCR) which details "more than 8,000 journals in the sciences and social sciences" from Web of Science, and a total of over twelve thousand journals (see bottom of this page). It ranks journals by its own Eigenfactor, as well as by Article Influence (see right). is another open access website that ranks journals broadly defined as related to the sciences. ![]() You can sort the journals by discipline or country of origin. The rankings are determined by both the number of citations a particular journal receives, as well as the relative prestige of the citing journal (their own spin on the Eigenfactor - see right).
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