Clarivate Analytics, formerly the Intellectual Property & Science business of Thomson Reuters, has released the 2017 Journal Citation Reports (JCR), an annual update of the most influential and comprehensive resource for information on highly cited, peer-reviewed publications and the source of Journal Impact Factor (JIF) scores.
Since 1973, the JCR has provided an assessment of a journal's standing in scholarly literature through the objective evaluation of statistical information, which only a publisher-independent company such as Clarivate Analytics, can provide. The analysis comprises citation data, impact and influence metrics, and millions of cited and citing journal data points from the Web of Science, the citation index in the sciences, social sciences and arts and humanities.
The JCR offers a variety of metrics to analyse journal activity - from open access to ranking top journals by disciplines, further enabling publishers, editors and researchers to better understand and measure the impact of their activities on addressing issues such as global health and climate change through their research.
Despite the thousands of papers published on climate change, controversy still lingers. To help add clarity to what the research data is revealing, the JCR identifies the top five research fields in climate change as Environmental Sciences, Meteorology & Atmospheric Sciences, Geosciences-Multidisciplinary, Ecology and Geography-Physical.
The 2017 JCR release, which represents 2016 citation data for literature within the sciences and social sciences, features 11,459 journal listings in 236 disciplines with 81 countries represented. A total of 132 journals received their first JIF in this report; 66 percent of journals saw a year-over-year increase in their JIF and 33 percent saw a decrease. These high-impact journals are at the heart of the Web of Science, the most comprehensive network of citations of over 33,000 journals.
The Journal Impact Factor is the ratio of 2016 citations to articles published in that journal in the two previous years. To ensure the JIF remains transparent to the research community, Web of Science will provide direct links to the source documents comprising the JIF denominator in later 2017. In addition, with 2018 JCR release, direct links will also extend to the JIF numerator.
As Clarivate Analytics continues to accelerate its investment in innovation, reinforced by the acquisition of Publons, the release of the JCR also includes new enhancements such as Percent Citable Items and new filters making analysis of the JCR easier. Percent Citable Items shows the percentage of a journal's content that is considered 'citable' for the JIF calculation.
JCR is available on InCites, an integrated web-based platform powered by data from the Web of Science. It is used for measuring research output and impact, monitoring trends and benchmarking articles, journals, institutions and researchers.
In addition, JCR Journal Impact Factor Quartile metrics will be added to InCites Benchmarking & Analytics. Institutions evaluating the impact of their research can use journal quartiles to better understand the portion of their faculty's output that is published in top journals, as well as track changes over time.
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