CWTS Journal Indicators: free access to over 20.000 journals indexed by Scopus; business & management are covered

See on Scoop.itDual impact of research; towards the impactelligent university

CWTS Journal Indicators provides free access to bibliometric indicators on scientific journals. The indicators have been calculated by Leiden University’s Centre for Science and Technology Studies (CWTS) based on the Scopus bibliographic database produced by Elsevier. Indicators are available for over 20,000 journals indexed in the Scopus database.CWTS Journal Indicators offers a number of bibliometric indicators on scientific journals. These indicators have been calculated based on the Scopus bibliographic database produced by Elsevier. A key indicator offered by CWTS Journal Indicators is the SNIP indicator, where SNIP stands for source normalized impact per paper. Indicators

CWTS Journal Indicators currently provides four indicators:

P. The number of publications of a source in the past three years.RIP. The raw impact per publication, calculated as the number of citations given in the present year to publications in the past three years divided by the total number of publications in the past three years. RIP is fairly similar to the well-known journal impact factor. Like the journal impact factor, RIP does not correct for differences in citation practices between scientific fields.SNIP. The source normalized impact per publication, calculated as the number of citations given in the present year to publications in the past three years divided by the total number of publications in the past three years. The difference with RIP is that in the case of SNIP citations are normalized in order to correct for differences in citation practices between scientific fields. Essentially, the longer the reference list of a citing publication, the lower the value of a citation originating from that publication. A detailed explanation is offered in our scientific paper.% self cit. The percentage of self citations of a source, calculated as the percentage of all citations given in the present year to publications in the past three years that originate from the source itself.

 

In the calculation of the above indicators, only publications that are classified as article, conference paper, or review in Scopus are considered. Publications of other document types are ignored. Citations originating from such publications are ignored as well. Furthermore, citations are not counted if they originate from special types of sources, in particular trade journals and sources with very few references to other sources (for more details, see our paper).

See on www.journalindicators.com

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About Wilfred Mijnhardt
RMIMR is my virtual playground, a place to reflect on issues from my professional context, my job as Policy Director at Rotterdam School of Management, Erasmus University (RSM). RSM is the international university based business school at Erasmus University Rotterdam. More info here: www.rsm.nl Here is my list of relevant publications on the topic of my RMIMR weblog: http://www.mendeley.com/collections/694621/RMIMR-Repository/ The rss feed for my RMIMR collection is here: http://www.mendeley.com/collections/rss/694621/ Here is my other weblog on impact of research: http://www.scoop.it/t/dualimpact

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