bibliometrics (2) author metrics

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Part 2 Author metrics

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Page 1: Bibliometrics (2) author metrics

Part 2

Author metrics

Page 2: Bibliometrics (2) author metrics

Citation metrics• h-index (Hirsch, 2005)– An author’s number of articles (h) that have

received at least h citations – a researcher with an h-index of 10 has

published 10 articles that have each been cited at least 10 times

• g-index (Egghe, 2006)– The highest number (g) of papers that together

received g2 or more citations – a researcher with a g-index of 10 has published

10 papers that together have been cited at least 100 times

Page 3: Bibliometrics (2) author metrics

H-index

Page 4: Bibliometrics (2) author metrics

Author: Smith, JHas written and published 9 articles (a-i), which have been cited as follows:

a:3, b:6, c:6, d:2, e:13, f:3, g:0, h:1, i:3

“no. of articles (n) that have received at least n citations”

Page 5: Bibliometrics (2) author metrics

Author: Smith, JHas written and published 9 articles (a-i), which have been cited as follows:

a:3, b:6, c:6, d:2, e:13, f:3, g:0, h:1, i:3

H-index: 3 (at least 3 References with 3 or more citations)

“no. of articles (n) that have received at least n citations”

Page 6: Bibliometrics (2) author metrics

Author: Smith, JHas written and published 9 articles (a-i), which have been cited as follows:

a:3, b:6, c:6, d:2, e:13, f:3, g:0, h:1, i:3

H-index: 3 (at least 3 References with 3 or more citations)

“no. of articles (n) that have received at least n citations”

Page 7: Bibliometrics (2) author metrics

Author: Smith, JHas written and published 9 articles (a-i), which have been cited as follows:

a:3, b:6, c:6, d:2, e:13, f:3, g:0, h:1, i:3

H-index: not 4 (only 3 References have 4 or more citations)

“no. of articles (n) that have received at least n citations”

Page 8: Bibliometrics (2) author metrics

G-index

Page 9: Bibliometrics (2) author metrics

Author: Smith, JHas written and published 9 articles (a-i), which have been cited as follows:

a:3, b:6, c:6, d:2, e:13, f:3, g:0, h:1, i:3

“The highest number (g) of papers that together received g2 or more citations”

Page 10: Bibliometrics (2) author metrics

Author: Smith, JHas written and published 9 articles (a-i), which have been cited as follows:

a:3, b:6, c:6, d:2, e:13, f:3, g:0, h:1, i:3

G-index: 5 (5x5 =25… top 5 cited articles= 31)

“The highest number (g) of papers that together received g2 or more citations”

Page 11: Bibliometrics (2) author metrics

Author: Smith, JHas written and published 9 articles (a-i), which have been cited as follows:

a:3, b:6, c:6, d:2, e:13, f:3, g:0, h:1, i:3

G-index: not 5 (6x6 =36… top 5 cited articles= 34)

“The highest number (g) of papers that together received g2 or more citations”

Page 12: Bibliometrics (2) author metrics

Web of Science• Track citations to your publications – Check who is citing your publications. Graph

your citations over time. Compute citation metrics.

• View publications by colleagues – Keep up with their work. See their citation

metrics.

• Appear in Google Scholar search results – Create a public profile using ResearcherID

that you can link to from a profile page, online cv, email signature or social media account.

Page 13: Bibliometrics (2) author metrics
Page 14: Bibliometrics (2) author metrics
Page 15: Bibliometrics (2) author metrics
Page 16: Bibliometrics (2) author metrics
Page 17: Bibliometrics (2) author metrics

This author has 41 articles which have been cited at least 41 times each.

Page 18: Bibliometrics (2) author metrics

This author has 41 articles (which are indexed on Web of Science) which have been cited at least 41 times each (on

Web of Science)

Page 19: Bibliometrics (2) author metrics

Google Scholar• Track citations to your publications – Check who is citing your publications. Graph

your citations over time. Compute citation metrics.

• View publications by colleagues – Keep up with their work. See their citation

metrics.

• Appear in Google Scholar search results – Create a public profile that can appear in

Google Scholar when someone searches for your name.

Page 20: Bibliometrics (2) author metrics
Page 21: Bibliometrics (2) author metrics
Page 22: Bibliometrics (2) author metrics

The same author has 46 articles which have been cited at least 46 times each.

Page 23: Bibliometrics (2) author metrics

The same author has 46 articles (which are indexed on Google Scholar) which have been

cited at least 46 times each (on Google Scholar)

Page 24: Bibliometrics (2) author metrics

Issues• Author identification• Register on ResearcherID - eg

Dr Dan Smith• Citation cultures vary across disciplines and

are not comparable• Publication cultures vary too• Research careers have different stages• Impact does not always = excellence• Scholarly communication evolving is

evolving beyond just citations in peer-reviewed articles

Page 25: Bibliometrics (2) author metrics

Image Credits[Slide 25] Via Flickr Creative Commons, by geishaboy500. Original at http://www.flickr.com/photos/49503154413@N01/2326873674