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Formula of journals impact-factor calculation renewed

Clarivate Analytics in their report and relevant press-release has informed that the formula for impact-factor calculation for journals that are included into databases of Science Citation Index Expanded and WoS Social Science Citation Index on Web of Science platform has been renewed.

New method is driven by the need to count academic influence of journals that function by the model of Early Access to the articles more correctly.

Due to Seven Hubbard, director of the Journal Citation Reports (JCR) content group, usage of the date of online publication to count impact factor of the journal will start in 2022 also using the data of 2021 publications.

We remind you that on Library website in chapter «Research» you can always:

  • find information on different indexes of academic journals impact;
  • overview the lists of new publications of Igor Sikorsky KPI authors on Scopus and Web of Science with impact indexes that is calculated by these international databases of scientific citation.


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