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Subject:

Google Scholar

From:

Jan Szczepanski <[log in to unmask]>

Reply-To:

BIBLIST - Topics in Nordic research library user services <[log in to unmask]>

Date:

Tue, 3 Mar 2009 08:34:42 +0100

Content-Type:

text/plain

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text/plain (1 lines)


I senaste numret av Portal finns en intressant undersökning av William
H. Walter: Performance:
comparative recall and precision:

abstract: This paper presents a comparative evaluation of Google Scholar
and 11 other bibliographic
databases (Academic Search Elite, AgeLine, ArticleFirst, EconLit,
GEOBASE, MEDLINE, PAIS
International, POPLINE, Social Sciences Abstracts, Social Sciences
Citation Index, and SocINDEX),
focusing on search performance within the multidisciplinary field of
later-life migration. The
results of simple keyword searches are evaluated with reference to a set
of 155 relevant articles
identified in advance. In terms of both recall and precision, Google
Scholar performs better than
most of the subscription databases. This finding, based on a rigorous
evaluation procedure, is
contrary to the impressions of many early reviewers. The paper concludes
with a discussion of a
new approach to document relevance in educational settings—an approach
that accounts for the
instructors’ goals as well as the students’ assessments of relevance.

Slutsats:

These findings suggest thata searcher who is unwilling to search
multiple databases or o adopt a
sophisticated search strategy is likely to achieve better than average
recall and precision by using
Google Scholar.

http://muse.jhu.edu/journals/portal_libraries_and_the_academy/toc/pla.9.1.html

Jan


--
De åsikter som framförs här är mina personliga
och inte ett uttryck för Göteborgs universitets-
biblioteks hållning


Opinions expressed here are my own and not
those of the Gothenburg University Library



Jan Szczepanski
Förste bibliotekarie
Goteborgs universitetsbibliotek
Box 222
SE 405 30 Goteborg, SWEDEN
Tel: +46 31 7861164 Fax: +46 31 163797
E-mail: [log in to unmask]









  


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