Interdisciplinary Studies

Updated science-wide author databases of standardized citation indicators

John P. A. Ioannidis, Kevin W. Boyack, Jeroen Baas
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Summary

There was great interest in the databases of standardized citation metrics across all scientists and scientific disciplines [1], and many scientists urged us to provide updates of the databases. Accordingly, we have provided updated analyses that use citations from Scopus with data freeze as of May 6, 2020, assessing scientists for career-long citation impact up until the end of 2019 (Table-S6-career-2019) and for citation impact during the single calendar year 2019 (Table-S7-singleyr-2019). Updated databases and code are freely available in Mendeley (https://dx.doi.org/10.17632/btchxktzyw). The original database (version 1) can also be found in https://data.mendeley.com/datasets/btchxktzyw/1, the updated (version 2) can also be found in https://data.mendeley.com/datasets/btchxktzyw/2, and any subsequent updates that might appear in the future will be generally accessible in https://dx.doi.org/10.17632/btchxktzyw.

Key Points

  • 1Updated databases contain career-long and single-year citation impact data for scientists across various fields
  • 2New columns in the databases rank scientists within their subfields, including those outside the top one hundred thousand
  • 3The document utilizes machine learning for more accurate classification of multidisciplinary journals
  • 4Attention is drawn to the implications of self-citation practices among top-cited researchers
  • 5Tables with percentile thresholds provide insights into citation performance within specific disciplines

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