The Web of Science (WoS; previously known as Web of Knowledge) is a paid-access platform that provides (typically via the internet) access to multiple databases that provide reference and citation data from academic journals, conference proceedings, and other documents in various academic disciplines.
Until 1997, it was originally produced by the Institute for Scientific Information. It is currently owned by Clarivate.
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".
The ESCI is accessible through the Web of Science, together with other Clarivate indexes. As of June 2021, all journals indexed in ESCI are also included in the Journal Citation Reports. 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. In July 2022, Clarivate announced that journals in the ESCI obtain an impact factor effective from JCR Year 2022 first released in June 2023.
Journal Citation Reports (JCR) is an annual publication by Clarivate. 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 Citation Index. Currently, the JCR, as a distinct service, is based on citations compiled from the Science Citation Index Expanded and the Social Sciences Citation Index. As of the 2023 edition, journals from the Arts and Humanities Citation Index and the Emerging Sources Citation Index have also been included.
View the full Wikipedia page for Journal Citation ReportsThe impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. Impact factor is a scientometric index calculated by Clarivate's Web of Science. The impact factor of a journal reflects the yearly mean number of article citations published in the last two years. While frequently used by universities and funding bodies to decide on promotion and research proposals, it has been criticised for distorting good scientific practices.
View the full Wikipedia page for Impact factorClarivate Plc is a British-American publicly traded analytics company that operates a collection of subscription-based services, in the areas of bibliometrics and scientometrics; business and market intelligence, and competitive profiling for pharmacy and biotech, patents, and regulatory compliance; trademark protection, and domain and brand protection. Clarivate calculates the impact factor of scientific journals, using data from its Web of Science product family, that also includes services and applications such as Publons, EndNote, and EndNote Click. Its other product families are Cortellis, DRG, CPA Global, Derwent, CompuMark, and Darts-ip, and also the various ProQuest products and services.
Clarivate was formed in 2016, following the acquisition of Thomson Reuters' Intellectual Property and Science business by Onex Corporation and Baring Private Equity Asia. Clarivate has acquired various companies since then, including, notably, ProQuest in 2021.
View the full Wikipedia page for Clarivate