Google Scholar Citation Indexes

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Presentation for the "Make Google behave" workshop organised by UKeiG and held in London, 30th October 2013. Covers Google Scholar citation indexes and how to calculate an author's h-index.

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29/10/2013 www.rba.co.uk 1 Google Scholar citation indexes Wednesday, 30 th October 2013 London This presentation is licensed under a Creative Commons Attribution 3.0 License Karen Blakeman, RBA Information Services Karen.Blakeman@rba.co.uk , http://www.rba.co.uk/search/ twitter.com/karenblakeman

h-Index:

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 29/10/2013 www.rba.co.uk 2

g-Index:

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 g 2  citations.” g-index - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/G-index 29/10/2013 www.rba.co.uk 3

Other indices:

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 29/10/2013 www.rba.co.uk 4

Google Scholar h-index:

Google Scholar h-index 29/10/2013 www.rba.co.uk 5 Author creates a profile and claims papers

Google Scholar h-index:

Google Scholar h-index 29/10/2013 www.rba.co.uk 6 ScholarHIndexCalculator - mWiki https://www.mat.unical.it/ianni/wiki/ScholarHIndexCalculator Add-on for Chrome (development of new features stopped for Firefox)

Google Scholar - Scholarometer :

Google Scholar - Scholarometer 29/10/2013 www.rba.co.uk 7 Scholarometer: Browser Extension and Web Service for Academic Impact Analysis http://scholarometer.indiana.edu/ Firefox and Chrome

Google Scholar - Scholarometer:

Google Scholar - Scholarometer 29/10/2013 www.rba.co.uk 8

Google Scholar – Publish or Perish:

Google Scholar – Publish or Perish 29/10/2013 www.rba.co.uk 9 Publish or Perish - Anne-Wil Harzing http://www.harzing.com/pop.htm Desktop application

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