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Bibliometrics (and altmetrics) are ways to measure and compare research publications, authors, departments, and institutions. These metrics allow one to 

  • Find the best journals in a field
  • Find how often an article is cited
  • Determine highly cited articles and authors in a field

Bibliometrics affect

  • Researchers and authors
  • Library journal collections
  • Research funding
  • Tenure and promotion
  • Expertise status in the field
  • Finding others in a field/subject area
  • Book and book chapter metrics

    Citations for books and book chapters are not tracked as well as journal articles. In some disciplines, book reviews (and where those reviews were published) may be more important than cited references. These tools may be more useful than the traditional cited reference tools.

  • Eigenfactor

    The Eigenfactor score of a journal is an estimate of the percentage of time that library users spend with that journal. An Eigenfactor is based on the number of cited references, with citations from highly ranked journals weighted to make a larger contribution than those from poorly ranked journals.

  • h-index

    The h-index can measure an author's relative research impact, as opposed to a simple citation count. The h-index is based on the set of the author's most cited publications and the number of cited references those publications have received. The h-index is an alternative to the journal impact factor metric.

  • Journal impact factor

    An impact factor is a measure of the frequency that the "average article" published in a scholarly journal has been cited in a two or five year period. It is often used to measure or describe the importance of a particular journal in an academic discipline. Authors can use impact factors to evaluate journals to decide which to publish in.

  • Publish or perish tool

    Publish or perish tool is a software program that retrieves and analyzes academic citations. It uses Google Scholar and Microsoft Academic Search to obtain raw citations, then analyzes these and presents a variety if bibliometrics.

  • Ranking researchers and institutions

    As more research literature is published online, the ability to analyze relationship among these publications has become easier. There are several tools that can be sued to analyze and rank these relationship (though Virginia Tech does not subscribe to all of them).


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Current semester hours

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