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  2. Journal Citation Reports - Wikipedia

    en.wikipedia.org/wiki/Journal_Citation_Reports

    Journal Citation Reports (JCR) is an annual publication by Clarivate. [1] It has been integrated with the Web of Science and is accessed from the Web of Science Core Collection. It provides information about academic journals in the natural and social sciences, including impact factors. JCR was originally published as a part of the Science ...

  3. Emerging Sources Citation Index - Wikipedia

    en.wikipedia.org/wiki/Emerging_Sources_Citation...

    While these journals still did not receive an impact factor until the next year, they did contribute citations to the calculation of other journals' impact factors. [4] [5] In July 2022, Clarivate announced that journals in the ESCI obtain an impact factor effective from JCR Year 2022 first released in June 2023. [6]

  4. Web of Science - Wikipedia

    en.wikipedia.org/wiki/Web_of_Science

    Journal Citation Reports (JCR) is an annual publication by Clarivate. [47] It has been integrated with the Web of Science and is accessed from the Web of Science Core Collection. It provides information about academic journals in the natural and social sciences, including impact factors. JCR was originally published as a part of the Science ...

  5. Impact factor - Wikipedia

    en.wikipedia.org/wiki/Impact_factor

    The impact factor was devised by Eugene Garfield, the founder of the Institute for Scientific Information (ISI) in Philadelphia. Impact factors began to be calculated yearly starting from 1975 for journals listed in the Journal Citation Reports (JCR).

  6. Clarivate - Wikipedia

    en.wikipedia.org/wiki/Clarivate

    Journal Citation Reports (JCR) is an annual publication by Clarivate. [56] It has been integrated with the Web of Science and is accessed from the Web of Science Core Collection. It provides information about academic journals in the natural and social sciences, including impact factors. JCR was originally published as a part of the Science ...

  7. SCImago Journal Rank - Wikipedia

    en.wikipedia.org/wiki/SCImago_Journal_Rank

    A journal's SJR indicator is a numeric value representing the average number of weighted citations received during a selected year per document published in that journal during the previous three years, as indexed by Scopus. Higher SJR indicator values are meant to indicate greater journal prestige.

  8. Scopus - Wikipedia

    en.wikipedia.org/wiki/Scopus

    Scopus is a scientific abstract and citation database, launched by the academic publisher Elsevier as a competitor to older Web of Science in 2004. [1] An ensuing competition between the two databases has been characterized as "intense" and is considered to significantly benefit their users in terms of continuous improvent in coverage, search/analysis capabilities, but not in price.

  9. CiteScore - Wikipedia

    en.wikipedia.org/wiki/CiteScore

    The values for Nature journals lie well above the expected ca. 1:1 linear dependence because those journals contain a significant fraction of editorials. CiteScore was designed to compete with the two-year JCR impact factor, which is currently the most widely used journal metric. [7] [8] Their main differences are as follows: [9]