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The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as indexed by Clarivate's Web of Science.
The Emerging Sources Citation Index (ESCI) is a citation index produced since 2015 by Thomson Reuters and now by Clarivate. According to the publisher, the index includes "peer-reviewed publications of regional importance and in emerging scientific fields". [1] The ESCI is accessible through the Web of Science, together with other Clarivate ...
The impact factor relates to a specific time period; it is possible to calculate it for any desired period. For example, the JCR also includes a five-year impact factor, which is calculated by dividing the number of citations to the journal in a given year by the number of articles published in that journal in the previous five years. [14] [15]
In 2010, a criticism was voiced pointing toward certain deficiencies of the journal impact factor calculation process, based on Thomson Reuters Web of Science, such as: journal citation distributions usually are highly skewed towards established journals; journal impact factor properties are field-specific and can be easily manipulated by ...
Plasmonics is a bimonthly peer-reviewed scientific journal covering plasmonics, including the theory of plasmonic metamaterials, fluorescence and surface-enhanced Raman spectroscopy.
"Impact of data sources on citation counts and rankings of LIS faculty: Web of science versus scopus and google scholar" (PDF). Journal of the American Society for Information Science and Technology .
Clarivate [6] was formerly the Intellectual Property and Science division of Thomson Reuters.Before 2008, it was known as Thomson Scientific. [7] In 2016, Thomson Reuters struck a $3.55 billion deal in which they spun it off as an independent company, and sold it to private-equity firms Onex Corporation and Baring Private Equity Asia.
The Arts and Humanities Citation Index (AHCI), also known as Arts and Humanities Search, is a citation index, with abstracting and indexing for more than 1,700 arts and humanities academic journals, and coverage of disciplines that includes social and natural science journals.