introduction to...
TRANSCRIPT
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INTRODUCTION TO
SCIENTOMETRICS
Farzaneh Aminpour, PhD.
Ministry of Health and Medical Education
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Workshop Objectives
Scientometrics: Basics
Citation Databases
Scientometrics Indices
H-index, M-index, G-index
Journal Impact Factor
Journal Citation Reports
CiteScore, SNIP, SJR
Citation Analysis: ISI, Scopus2
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Definition
Scientometrics is the study of measuring
and analyzing science, technology and
innovation.
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History
Modern Scientometrics is mostly based on the
work of Eugene Garfield creator and founder of
the Science Citation Index and the Institute for
Scientific Information (ISI) which is heavily used for
scientometric analysis.
Leydesdorff, L. and Milojevic, S., "Scientometrics" in: Lynch, M. (editor), International
Encyclopedia of Social and Behavioral Sciences subsection 85030. (2015)
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Scientometrics Variables
• Authors
• Publications
• References
• Citations
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Citation Databases
• ISI Web of Science
• Scopus
• Google Scholar
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ISI WoS Content Coverage
• 12,000 journals
• 160,000 conference proceedings
• Coverage dating back to 1900
• More than 250 disciplines
7
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ISI WOS Core Collection: Citation
Indexes
• Science Citation Index Expanded (SCI-EXPANDED):
1983-present
• Social Sciences Citation Index (SSCI): 1983-present
• Arts & Humanities Citation Index (A&HCI):1983-present
• Emerging Sources Citation Index (ESCI): 2015-present
• Conference Proceedings Citation Index-
Science (CPCI-S): 1990-present
• Conference Proceedings Citation Index- Social Science
& Humanities (CPCI-SSH): 1990-present
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Scopus Content Coverage
• More than 66 million records
• Over 22,700 peer-reviewed journals
• More than 4,470 are full open access
• Over 558 book series including 34,000
individual book volumes
• More than 138,000 non-serial books and
20,000 added each year
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Levels of Study
• Microlevel
Individuals, Groups
• Mesolevel
Universities, Institutions, Journals
• Macrolevel
National, Regional, Global
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Iran Contribution to World Science
0.45
0.58
0.77
0.951.05
1.18
1.44 1.43 1.391.43
1.55
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1.80
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Iran Science Production Rank in ISI
3432
27
22 22 22
19 2021 21
19
0
5
10
15
20
25
30
35
40
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Top Regional Countries: Comparison
of Science Production in ISI
Country 2012 2013 2014 2015 2016*
Turkey 33289 36392 37568 43847 46458
Iran 30698 31136 33416 38255 45131
Saudi Arabia
9376 11792 14518 17461 18995
Egypt 9321 10417 11779 13955 16063
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SUMS Scopus Indexed Papers:
Subject
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SUMS Scopus Indexed Papers:
Sources
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SUMS Scopus Indexed Papers:
Document Type
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SUMS Scopus Indexed Papers:
Authors
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SUMS Scopus Indexed Papers:
2011-2015
Year
2011-2015
Papers
4698
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SUMS Scopus Indexed Papers:
Citations
Year
2011-2015
Citations
20333
Average C/P
4.3
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SUMS Scopus Indexed Papers:
Research Collaboration (2011-2015)
Researchcollaboration
Percentage Publication Citation
International collaboration 12.7% 595 4,817
Only national collaboration 40.0% 1878 7,753
Only institutional
collaboration42.8% 2,011 7,263
Single authorship (no collaboration)
4.6% 214 500
20112015
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SUMS Scopus Indexed Papers:
SJR & SNIP Top 10%
Year 2013 2014 2015 2016
SJR 45 37 47 61
SNIP 30 30 39 43
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Applications
Grant / Funding Allocations
Benchmarking
Research Priorities
Scientific Collaboration Models
Research Ranking
Policy Decisions
Science Mapping
Academic Promotion
Collection management
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Types of Scientometric Indices
• Quantitative Indices
• Qualitative Indices
• Quantitative-Qualitative Indices
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Scientometric Indices:Levels of application
• Authors
• Number of papers (Quantity)
• Number of Citations (Quality)
• Average number of Citations or Citation/Paper (Quantity & Quality)
• H-index & g-index (Quantity & Quality)
• Journals
• Number of papers (Quantity)
• Number of Citations (Quality)
• Journal Impact Factor, h-index (Quantity & Quality)
• Articles
• Number of Citations (Quality)
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Scientometrics Indices
• Scientific Productivity
• Citations
• Immediacy Index
• Cited half life
• Highly Cited Paper
• H-Index
• M-Index (m<h)
• G-Index (g>h)
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H-Index
• The h-index was suggested in 2005 by Jorge E.
Hirsch, an American physicist.
• The h-index is a measurement that aims to describe
the scientific productivity and impact of a researcher.
• The h-index is defined by how many h of a
researcher’s publications each have at least h
citations.
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H-Graph
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Journal Impact Factor (JIF)
• Journal impact factor was devised
by Eugene Garfield, the founder of the ISI to
compare journals
• JIFs are calculated yearly starting from 1975.
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Journal Impact Factor:
Definition
• The average number of citations received in a
year by articles published in that journal during
the two preceding years.
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JIF Calculation
• Journal A published some papers in 2014 & 2015:
Item 2014 2015 Total
Total Papers Published 130 170 300
Citations Achieved in 2015 240 360 600
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2010 2011 2012
Source paper – published in 2012
Cited reference – published in 2012
Cited reference – published in 2010 or 2011
Citation
Immediacy Index
Impact Factor
Cited ½ Life
All
Previous
Years
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Journal Citation Reports (JCR)
Journal Impact Factors are calculated and
released annually by one of the most important
and useful ISI databases called Journal Citation
Reports.
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Example
• NURSING RESEARCH
IF 2015 = 1.856
• BONE RESEARCH
IF 2015 = 3.549
• IMMUNOLOGY
IF 2015 = 4.078
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CiteScore
• CiteScore is the new journal evaluation metrics
proposed by Elsevier.
• The concept is the same as Impact Factor.
• It's a 3 years period of time index
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SCImago vs JCR
Source of data
Coverage
Algorithm
Access
Application
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SCImago Journal Rank (SJR)
• SJR is normalized by the total number of
citations in the citing journal for the year in
question.
• Each journal is a node and each directed
connection is a normalized value of the number
of citations from one journal to another over a
three year window.
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Source Normalized Impact Per
Paper (SNIP)
• SINP normalizes the different fields based on the
citing-side form of normalization, rather than
normalizing with respect to the just total citations
a journal receives.
• SINP normalizes with respect to the number of
references in the citing journals.
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http://www.journalmetrics.com/
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Citation Reports