Friday 5 May 2017

Bibliometrics - Citation Tracking

 Source: http://researchguides.stevens.edu/c.php?g=233364&p=1550018

Citation Tracking & Bibliometrics

This guide helps
people learn about the citation searching process and the citation
indexes available to the world of scholarly publishing.

What is Bibliometrics?


The branch of library science concerned with the application of
mathematical and statistical analysis to bibliography; the statistical
analysis of books, articles, or other publications.  (see definition in Oxford English Dictionary Online)


Bibliometric measures are data about publications, or citation frequency.


Scientometrics is the branch of information science concerned with
the application of bibliometrics to the study of the spread of
scientific ideas; the bibliometric analysis of science.  (see definition
in Oxford English Dictionary Online)


Where to Find Citation Tools and Measures


Journal Citation Reports (Thomson Reuters)


Thomson Reuters' Journal Citation Reports database is found on the Databases A-Z
page. Below is a screenshot of the 2011 list of Journals in the
"Engineering, Mechanical" category, showing all the types of metrics
included in a Journal Citation Report.






Journal impact tools and measures


Journals



Journal Citation Reports (Thomson Reuters)



  - [# of citations in a year]/[total # of articles published in 2 previous years]
  - Eugene Garfield, 1950s
Article Influence (uses Thomson Reuters citation data; in Journal Citation Reports or at http://www.eigenfactor.org)



Eigenfactor (uses Thomson Reuters citation data; in Journal Citation Reports or at http://www.eigenfactor.org)
Scopus (Elsevier)



Journal Analyzer (uses Elsevier citation data; in Scopus)
SNIP (uses Elsevier citation data; in Scopus or at http://www.scimagojr.com/index.php)



SJR (uses Elsevier citation data; in Scopus or at http://www.journalindicators.com/)
SNIP & SJR @ Journalmetrics.com by Elsevier
Authors



h index (used in many citation trackers including Web of Science, Google Scholar, Scopus)



Jorge Hirsche, 2005
Based on author's years active as well as number of citations of specific articles
Example: h score of 10 = at least 10 articles cited at least 10 times each
g index (used in Publish or Perish, elsewhere)



Leo Egghe, 2006
Adds weight to heavily-cited articles in h-index metric

Journal Impact Factor: Example


Journal Impact Factor (JIF) score for Progress in Energy and Combustion Science:









2012 2011 Total
Cites in 2013 to items published per year 471 459 930
Number of items published per year 30 25 55
2013 Impact factor

(Cites to recent items/Number of recent items)
   
16.909





G-index


Invented by Leo Egghe (scientometrician, Belgium; in "Theory and practise of the g-index," Scientometrics, Vol. 69, No. 1 (2006) 131–152)



  • Adds weight to heavily-cited articles in h-index metric
  • The average of citations matched by the number of articles rather than the number of citations matched by the number of articles




Image: By Ael 2 (Own work) [CC BY-SA 3.0, via Wikimedia Commons


H-index


Invented by Jorge Hirsch (physicist, UCSD), 2005



Used in Web of Science, Google Scholar, Scopus



Based on years active as well as number of citations of specific articles (as well as your subscription span to Web of Science)



  • h score of 10 = at least 10 articles cited at least 10 times each




Image: By en:user:Ael 2, vectorized by pl:user:Vulpecula (vectorized version of File:H-index_plot.PNG) [Public domain], via Wikimedia Commons


Database Help



Bibliometrics - Citation Tracking

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