google scholar citation indexes

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Google Scholar CitationsNHS South West

Monday, 11th November 2013, ExeterThursday, 14th November 2013, Bristol

This presentation is licensed under a Creative Commons Attribution 3.0 License

Karen Blakeman, RBA Information ServicesKaren.Blakeman@rba.co.uk, http://www.rba.co.uk/search/

twitter.com/karenblakeman, http://google.com/+KarenBlakeman/ , http://www.linkedin.com/in/karenblakeman

Slides will be available on http://www.authorstream.com and http://www.slideshare.com/. Also available temporarily at http://www.rba.co.uk/as/

h-Index

h-index developed in 2005 by Jorge Hirsch, University of California in San Diego

Attempts to quantify productivity and apparent scientific impact of a scientist.

“A scientist has index h if h of his/her Np papers have at least h citations each, and the other (Np − h) papers have no more than h citations each”.

For example, an h-index of 20 means that the researcher has 20 papers each of which has been cited 20 or more times

Calculated by Scopus, WoS, Google Scholar, but only for those papers within the database

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g-Index

g-index - distribution of citations received by a given researcher's publications

Devised by Leo Egghe in 2006

“Given a set of articles ranked in decreasing order of the number of citations that they received, the g-index is the (unique) largest number such that the top g articles received (together) at least g2 citations.”

g-index - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/G-index

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Other indices

i10 Index i10-index is the number of publications with at least 10 citations

e-Index PLOS ONE: The e-Index, Complementing the h-Index for

Excess Citations http://www.plosone.org/article/info:doi%2F10.1371%2Fjournal.pone.0005429

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Google Scholar h-index

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Author has to create a profile and claim papers themselves

What if the author hasn’t claimed their papers

Various programs, browser extensions and add-ons that can be used to calculate citation indices

May be browser specific and have to download programs to your computer

The programs cannot differentiate between authors with the same name

– papers have to be manually removed from the list

– not always obvious which papers belong to which authors

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Scholar h-index Calculator

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https://www.mat.unical.it/ianni/wiki/ScholarHIndexCalculator Add-on for Chrome (development of new features stopped for Firefox)

Google Scholar - Scholarometer

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Scholarometer: Browser Extension and Web Service for Academic Impact Analysis http://scholarometer.indiana.edu/

Firefox and Chrome

Publish or Perish

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Publish or Perish - Anne-Wil Harzing http://www.harzing.com/pop.htmLooks at Google Scholar and Microsoft Academic Search