Interdisciplinary Studies

A standardized citation metrics author database annotated for scientific field

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

Citation metrics are widely used and misused. We have created a publicly available database of 100,000 top scientists that provides standardized information on citations, h-index, coauthorship-adjusted hm-index, citations to papers in different authorship positions, and a composite indicator. Separate data are shown for career-long and single-year impact. Metrics with and without self-citations and ratio of citations to citing papers are given. Scientists are classified into 22 scientific fields and 176 subfields. Field- and subfield-specific percentiles are also provided for all scientists who have published at least five papers. Career-long data are updated to end of 2017 and to end of 2018 for comparison.

Key Points

  • 1The database includes metrics like total citations and h-indexes for the top one hundred thousand scientists
  • 2Separate data for career-long and single-year impact are provided
  • 3The methodology aims to address issues of self-citation and inaccuracies in existing metrics
  • 4Over six million scientists who published at least five papers are classified into twenty-two fields and one hundred seventy-six subfields
  • 5Citation metrics should be interpreted carefully due to potential spurious results from high self-citations.

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