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Introduction to
bibliometric data sources
– GOOGLE SCHOLAR -
Introduction to bibliometric data sources
Part 3 (Google Scholar)
Presentation prepared for the EUROPEAN SUMMER SCHOOL
FOR...
CONTENTS
▪ Description of data source
▪ Getting data from Google Scholar
▪ Final considerations
3
1.
DESCRIPTION OF THE
DATA SOURCE
Main characteristics of Google Scholar
GOOGLE SCHOLAR, NO PRESENTATIONS
NEEDED!
5
Researchers’ Use of
Academic Libraries and
their Services
RIN, 2007
6
Researchers of
Tomorrow: the research
behavior of Generation Y
doctoral students
2012
GOOGLE SCHOLAR, NO PRESENTATIONS
N...
“When beginning research, more
than 75% are likely or extremely
likely to start with Google,
followed by Google Scholar, t...
“Perhaps surprisingly, the simple
searches in Google Scholar had
consistently higher recall and
precision than the expert
...
SOME FACTS
▪ Launched in 2004
▪ It is a search engine not a database
▪ Indexes material from academic and scientific
web d...
MAIN CHARACTERISTICS
Document types
Journal articles
Books
Working papers
Proceedings papers
Technical reports
Presentatio...
MAIN CHARACTERISTICS
11
170-175 M
57 M 53 M
Orduña-Malea et al 2015
THE oogle FAMILY
GS CITATION PROFILES
▪ Easy to create and update
▪ Alerts on received citations
▪ Some institutions promo...
Our own Juan in GS Profiles
13
Searching for scientometrics gurus with label:
14
Looking at the scientific community @ KU Leuven
15
Ethical issues, transparency and responsibility.
Enforcing scholars to use a commercial tool and its dangers
16
Delgado Ló...
Ethical issues, transparency and responsibility.
Enforcing scholars to use a commercial tool and its dangers
17
18
oEasy to set up (just search for your
papers)
oTerrific tool for comparing researchers
within a field or department
oAu...
GS metrics overall ranking
19
Top journals in German according to GS Metrics
20
21
oFree product to compare and rank
journals
oWe can get impact information
about non-JCR journals and about
national and...
MAIN TOOLS WITHIN
Alerts
Email result updates
from
▪ Saved research
queries
▪ Citing documents
▪ GS Author profiles
▪ Cita...
2.
GETTING DATA FROM
GOOGLE SCHOLAR
Google Scholar as a bibliometric data
source
GETTING THE FACTS STRAIGHT
▪ Google Scholar is the most powerful academic
search engine currently
▪ It also offers great f...
GETTING THE FACTS STRAIGHT
✓ Greater coverage for
SSH
✓ Wider range of document
types
✓ Reliable at the macro
level
✓ Bett...
26
“Google Scholar contains valuable information that is not available from any
other database, but it is impractical to r...
“[…] the information in GS, once
retrieved on the basis of existing
publication data and cleaning of
citation sources, ind...
3rd PARTY TOOLS TO GATHER DATA
▪ Harzing’s Publish or Perish
MORE ON THURSDAY!
28
3.
FINAL CONSIDERATIONS
Wrapping up!
THE CRITICAL VIEW
▪ A goldmine of scholarly data
▪ Free does not mean open!
▪ Professional bibliometrics… is it worth the
...
THE OPTIMISTIC VIEW
▪ The world is much bigger than WoS and Scopus
▪ A challenge and an opportunity to explore
marginalise...
THANKS!
Introduction to bibliometric data
sources – Part 3 (Google Scholar)
32
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Introduction to bibliometric data sources - Google Scholar

  1. 1. Introduction to bibliometric data sources – GOOGLE SCHOLAR -
  2. 2. Introduction to bibliometric data sources Part 3 (Google Scholar) Presentation prepared for the EUROPEAN SUMMER SCHOOL FOR SCIENTOMETRICS by Nicolas Robinson-Garcia and Daniel Torres-Salinas This work is licensed under a Creative Commons Attribution-ShareALike 4.0 International License2 http://nrobinsongarcia.com @nrobinsongarcia http://sl.ugr.es/torressalinas @torressalinas
  3. 3. CONTENTS ▪ Description of data source ▪ Getting data from Google Scholar ▪ Final considerations 3
  4. 4. 1. DESCRIPTION OF THE DATA SOURCE Main characteristics of Google Scholar
  5. 5. GOOGLE SCHOLAR, NO PRESENTATIONS NEEDED! 5 Researchers’ Use of Academic Libraries and their Services RIN, 2007
  6. 6. 6 Researchers of Tomorrow: the research behavior of Generation Y doctoral students 2012 GOOGLE SCHOLAR, NO PRESENTATIONS NEEDED!
  7. 7. “When beginning research, more than 75% are likely or extremely likely to start with Google, followed by Google Scholar, the online catalog, the article databases, and Wikipedia in that order. Bagget 2012 7 Preferred by students…
  8. 8. “Perhaps surprisingly, the simple searches in Google Scholar had consistently higher recall and precision than the expert searches. Walters 2011 8 … better than experts
  9. 9. SOME FACTS ▪ Launched in 2004 ▪ It is a search engine not a database ▪ Indexes material from academic and scientific web domains ▪ Simplicity as a theme ▪ Offers full text access and citations But provides very limited metadata! 9
  10. 10. MAIN CHARACTERISTICS Document types Journal articles Books Working papers Proceedings papers Technical reports Presentations … Geographical coverage The largest geographic coverage Greater coverage of non-English sources Disciplinary coverage Larger coverage in peripheral fields mainly SSH. 10
  11. 11. MAIN CHARACTERISTICS 11 170-175 M 57 M 53 M Orduña-Malea et al 2015
  12. 12. THE oogle FAMILY GS CITATION PROFILES ▪ Easy to create and update ▪ Alerts on received citations ▪ Some institutions promote their use ~ ethical issues? GS METRICS ▪ Journal rankings based on H-5 Index ▪ Rankings by fields (top100) (only English) and languages (top20) ▪ ≥100 pubs journals excluded 12
  13. 13. Our own Juan in GS Profiles 13
  14. 14. Searching for scientometrics gurus with label: 14
  15. 15. Looking at the scientific community @ KU Leuven 15
  16. 16. Ethical issues, transparency and responsibility. Enforcing scholars to use a commercial tool and its dangers 16 Delgado López-Cózar et al 2014
  17. 17. Ethical issues, transparency and responsibility. Enforcing scholars to use a commercial tool and its dangers 17
  18. 18. 18 oEasy to set up (just search for your papers) oTerrific tool for comparing researchers within a field or department oAutomatically updated basic bibliometric data oNo restrictions on source, language or area oEveryone can measure their performance (and their colleagues') oData can be easily manipulated (a researcher can self-claim non- authored papers) oCan stimulate vanity and ego oCan generate unfair comparisons (for example, researchers from different areas in a single univ) oCan generate unfair analysis by non-bibliometric experts STRENGTHS WEAKNESSES
  19. 19. GS metrics overall ranking 19
  20. 20. Top journals in German according to GS Metrics 20
  21. 21. 21 oFree product to compare and rank journals oWe can get impact information about non-JCR journals and about national and SSH publications oTransparency: citations for every paper that contributes to the h- index can be checked oHigh correlation with JCR Impact factor (0.82) oCan be easily replicated o Methodological inconsistencies such as comparing journals from different areas o Lack of proper bibliographic control (duplicates, “dirty” data,…) o No selection criteria o No action against data manipulation o Just top results are presented o H-index favours highly productive journals STRENGTHS WEAKNESSES
  22. 22. MAIN TOOLS WITHIN Alerts Email result updates from ▪ Saved research queries ▪ Citing documents ▪ GS Author profiles ▪ Citations to GS profiles Updates Alerts of papers based on: ▪ Search history ▪ Citations profile ▪ References ▪ Title ▪ Co-authors Library + Cite ▪ Like a reference manager ▪ Allows use of labels ▪ Chrome add-on allows searching GS anywhere ▪ Also offers citation in any format 22
  23. 23. 2. GETTING DATA FROM GOOGLE SCHOLAR Google Scholar as a bibliometric data source
  24. 24. GETTING THE FACTS STRAIGHT ▪ Google Scholar is the most powerful academic search engine currently ▪ It also offers great functionalities for citizen bibliometrics ▪ It is possible to use GS for bibliometric studies and reports, but it is not feasible nor advisable 24
  25. 25. GETTING THE FACTS STRAIGHT ✓ Greater coverage for SSH ✓ Wider range of document types ✓ Reliable at the macro level ✓ Better language and geographical coverage х Limited metadata (no API) х Not replicable х No quality controls х Lack of transparency 25
  26. 26. 26 “Google Scholar contains valuable information that is not available from any other database, but it is impractical to rely on it for large-scale analyses.” Alberto Martín-Martín interviewed by Holly Else, 2018
  27. 27. “[…] the information in GS, once retrieved on the basis of existing publication data and cleaning of citation sources, indicate acceptable levels of reliability in terms of source. Prins et al., 2014 27 But…
  28. 28. 3rd PARTY TOOLS TO GATHER DATA ▪ Harzing’s Publish or Perish MORE ON THURSDAY! 28
  29. 29. 3. FINAL CONSIDERATIONS Wrapping up!
  30. 30. THE CRITICAL VIEW ▪ A goldmine of scholarly data ▪ Free does not mean open! ▪ Professional bibliometrics… is it worth the effort? 30
  31. 31. THE OPTIMISTIC VIEW ▪ The world is much bigger than WoS and Scopus ▪ A challenge and an opportunity to explore marginalised areas science (non-English literature, SSH) ▪ Giving it back to the people, a trigger for citizen bibliometrics 31
  32. 32. THANKS! Introduction to bibliometric data sources – Part 3 (Google Scholar) 32
  • fhersanmi

    Jul. 15, 2019

Presentation given at the ESSS 2019 in Leuven.

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