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SCImago Journal & Country Rank

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This is being billed as a possible alternative to Thomson’s Impact  Factors. The indicators included in the SJR portal were calculated from the  information exported from the Scopus® database on March 2007 and will  be updated periodically. It allows you to list journals according to various indicators, such as: Rank: Journal Rank. Title: Journal title. SJR (SCImago Journal Rank): The SJR is an indicator that expresses the number of connections that a journal receives through the citation of its documents divided between the total of documents published in the year selected by the publication, weighted according to the amount of incoming and outgoing connections of the sources. See detailed description of SJR H Index: H index of de journal in this database. The h-index is an index that quantifies both the scientific productivity and the scientific impact of a journal (it is also applicable to scientists, countries…). The index is based on the set of the journal’s most quoted papers and the number of citations that they have received in others publications. (see H-index wikipedia definition). Total Docs. (1year): Total of published documents. The calculation of this indicator considers all the types of documents included in a journal. Total Docs. (3year): Total of documents published in a 3 year period. The calculation of this indicator takes into account the total of works (any type of document) published in the three previous years. For example, Total Docs (3year) of 2006 is calculated on the basis of the works published in 2003, 2004 and 2005. Total Refs. : Total number of references. It is the sum of all the bibliographical references per journal per year. Total Cites (3years): Total of document citations received by a journal in a 3 year period. This indicator is estimated taking account of all the types of documents contained in a journal in the year selected and the bibliographical references they include to any published document in the three previous years. Citable Docs.: Total of articles and reviews published in a 3 year period. The calculation of this indicator is based exclusively on scientific articles and reviews from the three years previous to the selected year. Cites x Doc. (2years): Citation average by document in a 2 year period. This indicator is calculated considering the number of citations received in the previous 2 years and the total of documents published in the selected year. Ref. x Doc.: Average of references by document. In order to find this indicator the total of references included in the documents contained in a journal for the selected year is divided by the total of documents published in that same year. Country: Journals country. Self Cites: Journal self-citation. This indicator is estimated taking account of all the types of documents contained in a journal in the selected year citing the journal in which they are published. Non-citable documents: This indicator is calculated by the difference  between Total Docs. and Citable Doc.

About SCImago Journal:

world.gif The SCImago Journal & Country Rank is a portal that includes the journals and country scientific indicators developed from the information contained in the Scopus® database (Elsevier B.V.). These indicators could be used to assess and analyze scientific domains. This platform takes its name from the SCImago Journal Rank (SJR) indicatorpdf, developed by SCImago from the widely known algorithm Google PageRank™. This indicator shows the visibility of the journals contained in the Scopus® database from 1996. SCImago is a research group from the University of Granada, Extremadura, Carlos III (Madrid) and Alcalá de Henares, dedicated to information analysis, representation and retrieval by means of visualisation techniques. As well as SJR Portal, SCImago has developed The Atlas of Science project, which proposes the creation of an information system whose major aims is to achieve a graphic representation of the IberoAmerican Science Research. Such representation is conceived as a collection of interactive maps, allowing navigation functions throughout the semantic spaces formed by the maps. It is developed by :  

http://www.scimagojr.com/

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