The Web of Science database bibliometrics and alternative metrics [email protected] 13.02.15.
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Transcript of The Web of Science database bibliometrics and alternative metrics [email protected] 13.02.15.
The Web of Science databasebibliometrics and alternative metrics
- ISI Social Sciences Citation Index- Web of Science - electronic database
Bibliography building Bibliometrics
Topic / keyword Citation metricsAuthor Journal rankingCited references Impact factorsShared references Data by disciplineSave & export University metrics
Coverage
• 12,600 refereed journals• Titles of non-English journal articles translated • Abstracts of non-English language articles
available in English from 1990• Social Sciences & Humanities databases
Search
• Phrase searching– eg. “inflation targeting” finds this exact phrase
• Author names– Last name, followed by first, or initial
• Lemley, Mark
• Search operatorshttp://images.webofknowledge.com/WOK46P9/help/WOS/ht_operators.html
New Web of Science
• Consolidated search field
• Simplified navigation and grouping of functional controls
• Multiple expanded search fields available
Cross-links from Web of Science to Google Scholar
Google Scholar automatically displays link to full text at user’s university if
available based on IP address.
Cross-links from Google Scholar to the Web of Science
• http://www.eui.eu/Research/Library/ServicesAndFacilities/Tools/UsingGoogleScholar.aspx
5-year Impact factor
• The 5-year Journal Impact Factor:– "The 5-year journal Impact Factor is the average
number of times articles from the journal published in the past five years have been cited in the Journal Citations Report year. It is calculated by dividing the number of citations in the Journal Citation Report year by the total number of articles published in the five previous years."
http://admin-apps.webofknowledge.com/JCR/help/h_impfact.htm
h-Index
• Developed by Jorge E. Hirsch'An index to quantify an individual’s scientific research output'– Proceedings of the National Academy of Sciences,
102 (46) November, 2005
Calculation
• H-index of 3 means there are 3 items that have 3 citations or more. "This metric is useful because it discounts the disproportionate weight of highly cited papers or papers that have not yet been cited."
h-Index
Controversies
• Book-intensive disciplines 'under-weighted'• Number of authors per work not factored. Multi-
authored papers favoured• Variation of citation numbers/patterns in different
disciplines and sub-disciplines not factored• No citation context: eg. 'routine' background/theory
citations and 'bad science' citations• Cannot account for bias or 'author cartels'
Caveats
• Web of Science a database of refereed article records
• ‘Main’ articles sometimes mis-classified as ‘reviews’• Language coverage• Thomson Reuters does not correct/change metadata• Abstracts only since 1992• Author names – variations/diacritics• Citation because of ‘controversial’ or ‘bad science’• Differences between disciplines: citation patterns.
Database caveats
• The journal selection process– "Many excellent regional journals target a local,
rather than an international, audience. Therefore, the emphasis on extensive international diversity is less than for internationally focused journals."
• Scientometrics as sub-discipline• Key in WoS: “bibliometrics"
Atlas of Science: Visualizing What We Know / Katy Börner
Institutional Rankings
• Times Higher Education– World University Rankings
• Scientific ‘competitiveness’ analysis– eg. UNESCO Science Report
2014 University rankings’ indicators
• Teaching: the learning environment
(30% of the overall ranking score)• Research: volume, income and reputation (30%)• Citations: research influence (30%)• International outlook: staff, students and research (7.5%)• Industry income: innovation (2.5%)
• ISI/SSCI - Paper• Web of Science electronic database• Scholarly communication / new media• Web of Science 'Scientific Web Plus'• 2014: Thomson Reuters & Google Scholar
Academic Communication Paper and Electronic
• Internet• Open Access• ‘Advanced’ OA / Web dissemination
• Example of PLoS article
• Books & e-Books• PalgravePivot• SpringerBriefs
Alternative metrics
• Altmetrics.org - methodology• ROAR - repository metrics• PLoS - article-level metrics• Webometrics - University web data• Blog Metrics• The Impact Blog (LSE)
• Google Scholar (May 2002)
• Google Books (December 2003)
• Google Ngram (May 2010) use firefox
• Google Scholar Metrics (November 2010)
• Google Citations (July 2011)
• Google Scholar Library (19 November 2013)
• Google Scholar Web of Science (March 2014)
U-Multirank (EC funded)
• U-Multirank is a new multidimensional, user-driven approach to international ranking of higher education institutions. It compares the performances of universities in 5 dimensions:
• (1) teaching and learning• (2) research• (3) knowledge transfer• (4) international orientation• (5) regional engagement
http://www.umultirank.org/#!/methodology?trackType=home&sightMode=undefined
The Debate
• Authors’ societies / language groups• Briefings (eg) ANVUR (Roma) 17 November
La valutazione della ricerca nelle Humanities and Social Sciences
• Chronicle of Higher Education• Times Higher Education
The Web of Science databasebibliometrics and alternative metrics