Bibliometrics pres

Bibliometrics: Measuring the impact of research

Sam Aston

http://www.flickr.com/photos/mad_house_photography/4311409835/

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Objectives

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What are Bibliometrics?

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Definition

• ‘A term used in quantitative studies of peer-reviewed scientific publications, dealing with measurement of the spread and impact of information published in scientific media, based on the statistical analysis of information in sources such as the Index Medicus and Science Citation Index’.

• "bibliometrics"  A Dictionary of Public Health. Ed. John M. Last, Oxford University Press, 2007. Oxford Reference Online. Oxford University Press.  University of Manchester.  26 October  2010  <http://www.oxfordreference.com>

Bibliometrics in a nutshell

What is a bibliometric?

What are bibliometrics used for?

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What’s good about bibliometrics?

What’s not so good?

Impact Measures

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(Journal) Impact Factor

• Journal Impact Factors (JIF) were devised by Eugene Garfield

• Eg. If a journal has an impact factor of 4 in 2009 then in 2007 & 2008 then its papers received an average 4 citations each.

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200920082007

Source paper – published in 2009

Cited reference – published in 2007 or 2008

Citations

All Previous Years

2006 2010

2009 Impact Factor

More Measures

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Individual Measures

• ‘H’ Index developed by Jorge E. Hirsch

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Schematic curve of number of citations versus paper number, with papers numbered in order of decreasing citations.Hirsch J E PNAS 2005;102:16569-16572

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Services to measure

Web of Knowledge&

Journal Citation Reports

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Using the Scopus database for bibliometrics

H Index

SCOPUS author evaluator

• Andrey Geim

SCOPUS Journal analyser

• Scopus analytics

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Bibliography

• Chapman, Karen, 2010. Methods of demonstrating article and journal impact, Journal of business and Finance Librarianship. 15:1, 2-13.

• White Paper Using Bibliometrics in Evaluation Research http://science.thomsonreuters.com/news/2008-07/8465001/