What is Web of Science Core Collection? Thomson …...What is Web of Science Core Collection?...
Transcript of What is Web of Science Core Collection? Thomson …...What is Web of Science Core Collection?...
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What is Web of Science Core Collection?
Thomson Reuters Journal Selection Process for Web of Science
Citation Analysis in Context: Proper use and Interpretation of Impact Factor
Some Common Causes for Rejection
How to Improve Your Journal and Have Greater Impact
James Testa
VP Editorial Development & Publisher Relations Malaysia
2014 1
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Celebrating the 50th Anniversary of Science Citation Index
The innovative thinking of Dr. Eugene Garfield, an early founder of
bibliometrics and scientometrics, made Thomson Reuters the first
and the best in scientific indexing. His unique way of making
connections between scientific research with Science Citation
Index was the precursor to what is now Web of Science™
Science Citation Index Expanded provides essential data from
over 8,600 of the world's leading scientific and technical journals,
with a rigorous selection process
Journals across 150 disciplines – from 1900 to present
Accessed via Web of Science
Core Collection
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What is Web of Science Core Collection?
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12,500 Top Tier International and Regional Journals Science Citation Index Expanded (1900-2014)
Social Sciences Citation Index (1900-2014)
Arts & Humanities Citation Index (1975-2014)
161,000 Conferences (1990-2014)
Conference Proceedings Citation Index
52,000 Scholarly Books (2005-2014)
Book Citation Index – Science
Book Citation Index – Social Sciences & Humanities
It is a vast multidisciplinary index of standardized metadata - source items
and cited references - from a
selected and rigorously curated collection of:
…that have published
57,000,000 Source Items (Articles, Reviews, Proceedings Papers,
Book Chapters etc.)
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WoS Core Collection is a true Citation Index -each and every cited reference from each of the
57 million source items is indexed !
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Editorial Development discovers new publications for possible coverage
User may also identify emerging publications and research fronts.
Consistency and Standardization
in Indexing of all Source Items and
every Cited Reference.
1 Billion Cited References Indexed
Millions of cited references link to WoS Core Collection sources
Many others point to sources outside WoS Core Collection
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Web of Science Core Collection Journal Content 2004-2013
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2004
2013
Regional Content
Expansion
2007-2010
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Why Be Selective….?
Thomson Reuters is in search of journals that -
• Contain the most important and compelling content
• Communicate that content most effectively and
efficiently
• Have an influence on the surrounding literature as
evidenced by citation impact
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Bradford’s Law
In any given field, relatively few journals publish a substantial majority of
important scientific and scholarly findings and advances.
Rejection rate: ~90%
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THE JOURNAL SELECTION PROCESS: MAIN OBJECTIVES
1. To evaluate and select the best scholarly journal
content available today for coverage in Web of
Science.
As a result, the Web of Science is known as the worldwide source
for top tier scholarly research published in the best international and
regional journals.
2. Provide the worldwide publishing community with
objective standards useful in building world-
class publications.
Thomson Reuters has built lasting partnerships with the global
scholarly publishing community. We work together to improve the
quality of scholarly communication everywhere in the world.
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Thomson Reuters Journal Selection Process has also been
adopted and modified by other commercial indexes to meet
different objectives and yielding different results !
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Thomson Reuters Journal Selection Process for Web of Science:
Four Points of Evaluation
Journal
Publishing
Standards
Editorial
Content
International
Diversity:
Authors, EAB
Citation
Analysis
•Timeliness of
publication
•International
Editorial
Conventions
•English language
Bibliographic
Information
•Peer Review
•How does this
journal compare
with covered
journals of similar
scope?
•Is this subject
already well
covered?
•Will this journal
enrich WoS with
novel content?
•Does this journal
target an
International or
Regional
audience?
•Is international
representation
among Authors
and EAB
members at an
appropriate level
for this journal?
Total Citations:
•Integration of the
journal into the
literature over time
Impact Factor:
•Recent citation
activity
Author, EAB
citations in the
literature.
•Citation metrics
have meaning only
in the editorial
context appropriate
for the journal.
Arts & Humanities journals are exceptional
•English full text may not be required
•Novel, well focused content (often regional) is essential
•Citation analysis plays a much smaller role.
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Journal Citation Reports -- 2012 Social Sciences Edition
Impact Factor Calculation
Journal: Accounting Organizations and Society
Impact Factor: 1.867
Cites in 2012 to articles published in :
2011 = 37
2010 = 103
Sum = 140
Number of articles published in:
2011 = 32
2010 = 43
Sum = 75
Calculation:
Cites to recent articles 140 = 1.867
Number of recent articles 75
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What Does Impact Factor
Represent?
Impact Factor represents the average number of
times recent articles in a specific journal were cited in a particular year.
What Does it Measure?
Impact Factor measures the citation performance of the journal as a whole and not of any specific
article or author published in the journal.
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Category Level Metrics – Ranked by Aggregate Impact Factor
Science Categories
Social Science Categories
Journal rankings and comparisons are meaningful only within
each category - not between categories or domains.
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Citation Analysis in Editorial Context
2012 Impact Factor = 2.00
Meaning?
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2012 Journal Citation Report
Science Edition
Impact Factor = 2.0
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Where do Malay Researchers Publish? 40,490 papers in
WoS Core Collection 2004-2013
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95% of Malaysian Papers are published in non-Malaysian journals.
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Most Common Causes of Rejection for Coverage
In
Web of Science Core Collection
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Why are journals rejected for Web of Science? Most common causes…
Lack of editorial focus, novel
content;
derivative or redundant studies
Late! Issues published behind schedule. Too few articles published
quarterly/annually…
Low citation impact relative to subject
Format: magazine/newsletter
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Overall rejection rates by factor*: Social Sciences, Life Sciences,
Physics Chemistry Earth Sciences
624 Journals rejected
2010-2011
Timeliness:
13%
Low Citation Impact
Relative to Subject:
72%
Editorial Content:
47%
Format:
25%
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*Each journal rejection may have included
one or more of these factors
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Distribution of Rejection Factors for 624 journals* by Region (2010-2011)
Asia
Pacific (125 journals)
Europe (274 journals)
Latin
America (21 journals)
Middle
East –
Africa (50 journals)
US / UK (154 journals)
Timeliness 14% 13% 33% 14% 12%
Format 20% 25% 19% 16% 35%
Editorial Content 50% 45% 48% 66% 42%
Low Citation
Impact 76% 77% 81% 72% 59%
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*Subject Areas •Life Sciences
•Physics Chemistry & Earth Sciences
•Social Sciences
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Distribution of Rejection Factors for 624 journals* by Region
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•Life Sciences
•Physics Chemistry & Earth Sciences
•Social Sciences *Subject Areas
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What is Web of Science Core Collection?
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12,500 Top Tier International and Regional Journals * (1900-2014) SCIE, SSCI, AHCI
161,000 Conferences (1990-2014) Conference Proceedings Citation Index
52,000 Scholarly Books (2005-2014) Book Citation Index
It is a vast multidisciplinary index of standardized metadata - source items
and cited references - from a
selected and rigorously curated collection of:
57 Million Source items
1 Billion Cited References
*Rejection rate: ~90%
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How Can I Improve My Journal?
• New England J Med
• Ann Intern Med
• BMJ • JAMA
• Lancet • Med J Australia
• Can Med Assn J